{"schema":"gale.providerFacts/1","npi":"1952981730","url":"https://www.gale.care/providers/ca/sacramento/winston-chang-do-1952981730","factsUrl":"https://www.gale.care/npi/1952981730.json","markdownUrl":"https://www.gale.care/npi/1952981730.md","generatedAt":"2026-10-24T10:21:09.627Z","exportId":"elig-ca-20261023T221350Z","factsHash":"0040e25850733bdb","factsChangedAt":"2026-10-23T00:00:00.000Z","index":{"robots":"index","basis":"index-all"},"summary":"Winston Chang, DO (NPI 1952981730) is listed in the NPPES registry under a training program in Sacramento, CA, phone (310) 710-0957, as of the registry file of Jun 8, 2026.","identity":{"name":{"id":"name","value":"Winston Chang","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists Winston Chang under NPI 1952981730, as of the registry file of Jun 8, 2026."},"credential":{"id":"credential","value":"DO","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists the credential DO for Winston Chang, DO (NPI 1952981730), as of the registry file of Jun 8, 2026."},"specialty":{"id":"specialty","value":"Student in an Organized Health Care Education/Training Program","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists Winston Chang, DO (NPI 1952981730) under the specialty Student in an Organized Health Care Education/Training Program, as of the registry file of Jun 8, 2026."},"registryStage":{"id":"registry-stage","value":"student","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists Winston Chang, DO (NPI 1952981730) under a training program, as of the registry file of Jun 8, 2026."},"npiIssued":{"id":"npi-issued","value":2021,"status":"confirmed","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry shows NPI 1952981730 (Winston Chang, DO) issued in 2021, as of the registry file of Jun 8, 2026."},"practiceType":{"id":"practice-type","value":"not-sole-proprietor","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists Winston Chang, DO (NPI 1952981730) as not a sole proprietor, as of the registry file of Jun 8, 2026."}},"location":{"city":{"id":"city","value":"Sacramento","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists a practice location in Sacramento for Winston Chang, DO (NPI 1952981730), as of the registry file of Jun 8, 2026."},"state":{"id":"state","value":"CA","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists a practice location in CA for Winston Chang, DO (NPI 1952981730), as of the registry file of Jun 8, 2026."}},"contact":{"phone":{"id":"phone","value":"(310) 710-0957","status":"self-reported","source":"nppes-registry","asOf":"2026-06-08","checkedAt":null,"staleAfter":null,"confidence":"high","gate":"G0","sentence":"The NPPES registry lists (310) 710-0957 as the practice phone for Winston Chang, DO (NPI 1952981730), as of the registry file of Jun 8, 2026."}},"care":{"newPatients":{"id":"new-patients","value":true,"status":"confirmed","source":"cigna-fhir-directory","asOf":"2026-10-18","checkedAt":"2026-10-22T21:36:04Z","staleAfter":"2027-01-16","confidence":"high","gate":"G4","sentence":"Cigna's directory listed Winston Chang, DO (NPI 1952981730) as taking new patients on Oct 18, 2026."}},"insurance":{"rows":[{"id":"ins-healthnet-marketplace","value":{"payer":"healthnet","payerLabel":"Ambetter from Health Net","line":"marketplace","products":["CA AP PPO"],"accepts":true,"setting":null},"status":"confirmed","source":"healthnet-fhir-directory","asOf":"2026-10-16","checkedAt":"2026-10-22T21:25:40Z","staleAfter":"2027-04-14","confidence":"medium","gate":"G3","sentence":"Listed: Health Net's directory listed Winston Chang, DO (NPI 1952981730) for Ambetter from Health Net individual and family plans on Oct 16, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-anthem-medi-cal","value":{"payer":"anthem","payerLabel":"Anthem Blue Cross Medi-Cal","line":"medi-cal","products":["ANTHEM BLUE CROSS PARTNERSHIP PLAN"],"accepts":true,"setting":"office"},"status":"confirmed","source":"dhcs-mcp-274-listing","asOf":"2026-04-21","checkedAt":"2026-10-22T14:42:02Z","staleAfter":"2026-08-19","confidence":"medium","gate":"G3","sentence":"Listed: DHCS Medi-Cal plan network listing listed Winston Chang, DO (NPI 1952981730) for Anthem Blue Cross Medi-Cal on Apr 21, 2026. The state file is old; Gale found no newer one.","cautions":["stale"],"staleNote":"The state file is old; Gale found no newer one."},{"id":"ins-bsc-commercial","value":{"payer":"bsc","payerLabel":"Blue Shield of California","line":"commercial","products":["ACCESS+ HMO","ACO HMO","CALPERS ACCESS +","CALPERS EPO","CALPERS TRIO","CCPOA HMO","HPN EPO","LOCAL ACCESS+ HMO"],"accepts":true,"setting":"office"},"status":"confirmed","source":"bsc-fhir-directory","asOf":"2026-10-22","checkedAt":"2026-10-22T16:50:39Z","staleAfter":"2027-04-20","confidence":"medium","gate":"G3","sentence":"Listed: Blue Shield of California's directory listed Winston Chang, DO (NPI 1952981730) for Blue Shield of California commercial plans on Oct 22, 2026. Gale checked 60 listings in this directory by hand on Oct 22, 2026; 23 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-bsc-marketplace","value":{"payer":"bsc","payerLabel":"Blue Shield of California","line":"marketplace","products":["IFP EPPO","IFP TRIO"],"accepts":true,"setting":"office"},"status":"confirmed","source":"bsc-fhir-directory","asOf":"2026-10-22","checkedAt":"2026-10-22T16:50:39Z","staleAfter":"2027-04-20","confidence":"medium","gate":"G3","sentence":"Listed: Blue Shield of California's directory listed Winston Chang, DO (NPI 1952981730) for Blue Shield of California individual and family plans on Oct 22, 2026. Gale checked 60 listings in this directory by hand on Oct 22, 2026; 23 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-bsc-medicare-advantage","value":{"payer":"bsc","payerLabel":"Blue Shield of California","line":"medicare-advantage","products":["PPO GMAPD"],"accepts":true,"setting":"office"},"status":"confirmed","source":"bsc-fhir-directory","asOf":"2026-10-22","checkedAt":"2026-10-22T16:50:39Z","staleAfter":"2027-04-20","confidence":"medium","gate":"G3","sentence":"Listed: Blue Shield of California's directory listed Winston Chang, DO (NPI 1952981730) for Blue Shield of California Medicare Advantage plans on Oct 22, 2026. Gale checked 60 listings in this directory by hand on Oct 22, 2026; 23 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-cigna-commercial","value":{"payer":"cigna","payerLabel":"Cigna / Evernorth","line":"commercial","products":["CALIFORNIA OAP DIRECT","CALIFORNIA PPO-PPA DIRECT"],"accepts":true,"setting":"office"},"status":"confirmed","source":"cigna-fhir-directory","asOf":"2026-10-18","checkedAt":"2026-10-22T21:36:04Z","staleAfter":"2027-04-16","confidence":"high","gate":"G3","sentence":"Listed: Cigna's directory listed Winston Chang, DO (NPI 1952981730) for Cigna / Evernorth commercial plans on Oct 18, 2026. Gale checked 51 listings in this directory by hand on Oct 22, 2026; 3 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-healthnet-commercial","value":{"payer":"healthnet","payerLabel":"Health Net","line":"commercial","products":["CA Blue and Gold HMO","CA Elect Open Access Large Group","CA Elect Open Access Small Group","CA Large Group HMO","CA Medicare COB HMO","CA Medicare COB Point of Service","CA PPO Large and Small","CA Select I Point of Service"],"accepts":true,"setting":null},"status":"confirmed","source":"healthnet-fhir-directory","asOf":"2026-10-17","checkedAt":"2026-10-22T21:25:40Z","staleAfter":"2027-04-15","confidence":"medium","gate":"G3","sentence":"Listed: Health Net's directory listed Winston Chang, DO (NPI 1952981730) for Health Net commercial plans on Oct 17, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-medi-cal-ffs-medi-cal","value":{"payer":"medi-cal-ffs","payerLabel":"Medi-Cal fee-for-service","line":"medi-cal","products":["Medi-Cal FFS"],"accepts":true,"setting":null},"status":"confirmed","source":"dhcs-ffs-enrolled-2026-10-19","asOf":"2026-10-19","checkedAt":"2026-10-22T14:41:40Z","staleAfter":"2027-02-16","confidence":"high","gate":"G3","sentence":"Listed: DHCS Medi-Cal fee-for-service enrolment file listed Winston Chang, DO (NPI 1952981730) for Medi-Cal fee-for-service on Oct 19, 2026."},{"id":"ins-partnership-medi-cal","value":{"payer":"partnership","payerLabel":"Partnership HealthPlan of California","line":"medi-cal","products":["NETWORK-2026"],"accepts":true,"setting":null},"status":"confirmed","source":"partnership-fhir-directory","asOf":"2026-10-16","checkedAt":"2026-10-22T21:38:25Z","staleAfter":"2027-04-14","confidence":"high","gate":"G3","sentence":"Listed: Partnership HealthPlan of California's directory listed Winston Chang, DO (NPI 1952981730) for Partnership HealthPlan of California Medi-Cal plans on Oct 16, 2026."},{"id":"ins-uhc-commercial","value":{"payer":"uhc","payerLabel":"UnitedHealthcare","line":"commercial","products":["Charter HMO/Charter Balanced HMO/Charter Plus HMO","Charter Plus","Charter/Charter Balanced","Choice","Choice Plus","Choice Plus HMO Premier","Navigate HMO/Navigate Balanced HMO/Navigate Plus HMO","Navigate Plus"],"accepts":true,"setting":"office"},"status":"confirmed","source":"uhc-fhir-directory","asOf":"2026-10-23","checkedAt":"2026-10-23T17:42:33Z","staleAfter":"2027-04-21","confidence":"medium","gate":"G3","sentence":"Listed: UnitedHealthcare's directory listed Winston Chang, DO (NPI 1952981730) for UnitedHealthcare commercial plans on Oct 23, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-healthnet-medicare-advantage","value":{"payer":"healthnet","payerLabel":"Wellcare by Health Net","line":"medicare-advantage","products":["CA Medicare Employer Group","Medicare Advantage Risk"],"accepts":true,"setting":null},"status":"confirmed","source":"healthnet-fhir-directory","asOf":"2026-10-16","checkedAt":"2026-10-22T21:25:40Z","staleAfter":"2027-04-14","confidence":"medium","gate":"G3","sentence":"Listed: Health Net's directory listed Winston Chang, DO (NPI 1952981730) for Wellcare by Health Net Medicare Advantage plans on Oct 16, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office.","cautions":["hand-check"]},{"id":"ins-aetna-commercial","value":{"payer":"aetna","payerLabel":"Aetna","line":"commercial","products":["AHF Choice POS II","AHF OA MC","AHF Open Access Aetna Select","Aetna Choice POS II","Aetna Select","HF OPEN POS II","HMO","HSA Aetna Choice POS II"],"accepts":null,"setting":null},"status":"inferred","source":"aetna-tic-2026-10","asOf":"2026-10-05","checkedAt":"2026-10-22T17:01:05Z","staleAfter":"2027-04-03","confidence":"low","gate":"G3i","sentence":"Likely: Aetna's price file suggests Aetna pays Winston Chang, DO (NPI 1952981730) for commercial plans (file of Oct 5, 2026). That is a lead, not a directory listing."},{"id":"ins-anthem-commercial","value":{"payer":"anthem","payerLabel":"Anthem Blue Cross","line":"commercial","products":["CA DIGNITY HEALTH ECHW","CA EPO BLUE CONNECTION","CA EPO HIGH PERFORMANCE","CA EPO HIGH PERFORMANCE FALL-THRU MIX F","CA EPO USC TIER 1","CA HMO ADVANTAGE","CA HMO ADVANTAGE PLUS CC55","CA HMO ADVANTAGE TIER 1"],"accepts":null,"setting":null},"status":"inferred","source":"anthem-tic-2026-10","asOf":"2026-10-01","checkedAt":"2026-10-22T17:01:10Z","staleAfter":"2027-03-30","confidence":"low","gate":"G3i","sentence":"Likely: Anthem Blue Cross's price file suggests Anthem Blue Cross pays Winston Chang, DO (NPI 1952981730) for commercial plans (file of Oct 1, 2026). That is a lead, not a directory listing."},{"id":"ins-anthem-marketplace","value":{"payer":"anthem","payerLabel":"Anthem Blue Cross","line":"marketplace","products":["CA EPO Pathway","CA HMO Pathway"],"accepts":null,"setting":null},"status":"inferred","source":"anthem-tic-2026-10","asOf":"2026-10-01","checkedAt":"2026-10-22T17:01:10Z","staleAfter":"2027-03-30","confidence":"low","gate":"G3i","sentence":"Likely: Anthem Blue Cross's price file suggests Anthem Blue Cross pays Winston Chang, DO (NPI 1952981730) for individual and family plans (file of Oct 1, 2026). That is a lead, not a directory listing."},{"id":"ins-anthem-workers-comp","value":{"payer":"anthem","payerLabel":"Anthem Blue Cross","line":"workers-comp","products":["CA WORKERS COMP PERCENTAGE","CA WORKERS COMP WC06","CA WORKERS COMPENSATION"],"accepts":null,"setting":null},"status":"inferred","source":"anthem-tic-2026-10","asOf":"2026-10-01","checkedAt":"2026-10-22T17:01:10Z","staleAfter":"2027-03-30","confidence":"low","gate":"G3i","sentence":"Likely: Anthem Blue Cross's price file suggests Anthem Blue Cross pays Winston Chang, DO (NPI 1952981730) for workers' compensation (file of Oct 1, 2026). That is a lead, not a directory listing."},{"id":"ins-ahf-medi-cal","value":null,"status":"not-listed","source":"ahf-fhir-directory","asOf":"2026-09-19","checkedAt":"2026-10-22T14:57:40Z","staleAfter":"2027-03-18","confidence":"low","gate":"G3","sentence":"Not listed by AIDS Healthcare Foundation (PHP) Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 19, 2026. That is not a no.","checkedSources":[{"source":"ahf-fhir-directory","asOf":"2026-09-19"}]},{"id":"ins-ahf-medicare-advantage","value":null,"status":"not-listed","source":"ahf-fhir-directory","asOf":"2026-09-15","checkedAt":"2026-10-22T14:57:40Z","staleAfter":"2027-03-14","confidence":"low","gate":"G3","sentence":"Not listed by AIDS Healthcare Foundation (PHP) Medicare Advantage plans for Winston Chang, DO (NPI 1952981730) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 15, 2026. That is not a no.","checkedSources":[{"source":"ahf-fhir-directory","asOf":"2026-09-15"}]},{"id":"ins-bsc-medi-cal","value":null,"status":"not-listed","source":"bsc-fhir-directory","asOf":"2026-10-22","checkedAt":"2026-10-22T16:50:39Z","staleAfter":"2027-04-20","confidence":"low","gate":"G3","sentence":"Not listed by Blue Shield of California Promise Health Plan Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no.","checkedSources":[{"source":"bsc-fhir-directory","asOf":"2026-10-22"}]},{"id":"ins-caloptima-medi-cal","value":null,"status":"not-listed","source":"caloptima-fhir-directory","asOf":"2026-10-11","checkedAt":"2026-10-22T21:38:03Z","staleAfter":"2027-04-09","confidence":"low","gate":"G3","sentence":"Not listed by CalOptima Health Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in CalOptima Health's directory, file of Oct 11, 2026. That is not a no.","checkedSources":[{"source":"caloptima-fhir-directory","asOf":"2026-10-11"}]},{"id":"ins-calviva-medi-cal","value":null,"status":"not-listed","source":"healthnet-fhir-directory","asOf":"2026-10-21","checkedAt":"2026-10-22T21:25:40Z","staleAfter":"2027-04-19","confidence":"low","gate":"G3","sentence":"Not listed by CalViva Health Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Health Net's directory, file of Oct 21, 2026. That is not a no.","checkedSources":[{"source":"healthnet-fhir-directory","asOf":"2026-10-21"}]},{"id":"ins-ccah-medi-cal","value":null,"status":"not-listed","source":"ccah-fhir-directory","asOf":"2026-10-22","checkedAt":"2026-10-22T14:57:43Z","staleAfter":"2027-04-20","confidence":"low","gate":"G3","sentence":"Not listed by Central California Alliance for Health Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Central California Alliance for Health's directory, file of Oct 22, 2026. That is not a no.","checkedSources":[{"source":"ccah-fhir-directory","asOf":"2026-10-22"}]},{"id":"ins-goldcoast-medi-cal","value":null,"status":"not-listed","source":"goldcoast-fhir-directory","asOf":"2026-10-09","checkedAt":"2026-10-22T14:57:24Z","staleAfter":"2027-04-07","confidence":"low","gate":"G3","sentence":"Not listed by Gold Coast Health Plan Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Gold Coast Health Plan's directory, file of Oct 9, 2026. That is not a no.","checkedSources":[{"source":"goldcoast-fhir-directory","asOf":"2026-10-09"}]},{"id":"ins-healthnet-medi-cal","value":null,"status":"not-listed","source":"healthnet-fhir-directory","asOf":"2026-10-22","checkedAt":"2026-10-22T21:25:40Z","staleAfter":"2027-04-20","confidence":"low","gate":"G3","sentence":"Not listed by Health Net Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Health Net's directory, file of Oct 22, 2026. That is not a no.","checkedSources":[{"source":"healthnet-fhir-directory","asOf":"2026-10-22"}]},{"id":"ins-hpsj-medi-cal","value":null,"status":"not-listed","source":"hpsj-fhir-directory","asOf":"2026-10-02","checkedAt":"2026-10-22T21:41:38Z","staleAfter":"2027-03-31","confidence":"low","gate":"G3","sentence":"Not listed by Health Plan of San Joaquin Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Health Plan of San Joaquin's directory, file of Oct 2, 2026. That is not a no.","checkedSources":[{"source":"hpsj-fhir-directory","asOf":"2026-10-02"}]},{"id":"ins-iehp-marketplace","value":null,"status":"not-listed","source":"iehp-fhir-directory","asOf":"2026-07-27","checkedAt":"2026-10-22T15:10:17Z","staleAfter":"2027-01-23","confidence":"low","gate":"G3","sentence":"Not listed by Inland Empire Health Plan (IEHP) individual and family plans for Winston Chang, DO (NPI 1952981730) in Inland Empire Health Plan (IEHP)'s directory, file of Jul 27, 2026. That is not a no.","checkedSources":[{"source":"iehp-fhir-directory","asOf":"2026-07-27"}]},{"id":"ins-iehp-medi-cal","value":null,"status":"not-listed","source":"iehp-fhir-directory","asOf":"2026-07-29","checkedAt":"2026-10-22T15:10:17Z","staleAfter":"2027-01-25","confidence":"low","gate":"G3","sentence":"Not listed by Inland Empire Health Plan (IEHP) Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Inland Empire Health Plan (IEHP)'s directory, file of Jul 29, 2026. That is not a no.","checkedSources":[{"source":"iehp-fhir-directory","asOf":"2026-07-29"}]},{"id":"ins-iehp-medicare-advantage","value":null,"status":"not-listed","source":"iehp-fhir-directory","asOf":"2026-10-16","checkedAt":"2026-10-22T15:10:17Z","staleAfter":"2027-04-14","confidence":"low","gate":"G3","sentence":"Not listed by Inland Empire Health Plan (IEHP) Medicare Advantage plans for Winston Chang, DO (NPI 1952981730) in Inland Empire Health Plan (IEHP)'s directory, file of Oct 16, 2026. That is not a no.","checkedSources":[{"source":"iehp-fhir-directory","asOf":"2026-10-16"}]},{"id":"ins-kern-medi-cal","value":null,"status":"not-listed","source":"kern-fhir-directory","asOf":"2026-10-09","checkedAt":"2026-10-22T15:04:08Z","staleAfter":"2027-04-07","confidence":"low","gate":"G3","sentence":"Not listed by Kern Family Health Care Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in Kern Family Health Care's directory, file of Oct 9, 2026. That is not a no.","checkedSources":[{"source":"kern-fhir-directory","asOf":"2026-10-09"}]},{"id":"ins-lacare-medi-cal","value":null,"status":"not-listed","source":"lacare-fhir-directory","asOf":"2026-10-19","checkedAt":"2026-10-22T15:06:55Z","staleAfter":"2027-04-17","confidence":"low","gate":"G3","sentence":"Not listed by L.A. Care Health Plan Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in L.A. Care Health Plan's directory, file of Oct 19, 2026. That is not a no.","checkedSources":[{"source":"lacare-fhir-directory","asOf":"2026-10-19"}]},{"id":"ins-medicare-medicare","value":null,"status":"not-listed","source":"cms-medicare-clinicians","asOf":"2026-10-02","checkedAt":"2026-10-22T14:36:32Z","staleAfter":"2027-01-30","confidence":"low","gate":"G3","sentence":"Not listed by Original Medicare for Winston Chang, DO (NPI 1952981730) in CMS Medicare clinicians file, file of Oct 2, 2026. That is not a no.","checkedSources":[{"source":"cms-medicare-clinicians","asOf":"2026-10-02"}]},{"id":"ins-optum-medicare-advantage","value":null,"status":"not-listed","source":"uhc-fhir-directory","asOf":"2026-10-23","checkedAt":"2026-10-23T17:42:33Z","staleAfter":"2027-04-21","confidence":"low","gate":"G3","sentence":"Not listed by Optum Behavioral Health Medicare Advantage plans for Winston Chang, DO (NPI 1952981730) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no.","checkedSources":[{"source":"uhc-fhir-directory","asOf":"2026-10-23"}]},{"id":"ins-sfhp-medi-cal","value":null,"status":"not-listed","source":"sfhp-fhir-directory","asOf":"2026-10-01","checkedAt":"2026-10-22T14:56:20Z","staleAfter":"2027-03-30","confidence":"low","gate":"G3","sentence":"Not listed by San Francisco Health Plan Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in San Francisco Health Plan's directory, file of Oct 1, 2026. That is not a no.","checkedSources":[{"source":"sfhp-fhir-directory","asOf":"2026-10-01"}]},{"id":"ins-uhc-marketplace","value":null,"status":"not-listed","source":"uhc-fhir-directory","asOf":"2026-10-23","checkedAt":"2026-10-23T17:42:33Z","staleAfter":"2027-04-21","confidence":"low","gate":"G3","sentence":"Not listed by UnitedHealthcare individual and family plans for Winston Chang, DO (NPI 1952981730) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no.","checkedSources":[{"source":"uhc-fhir-directory","asOf":"2026-10-23"}]},{"id":"ins-uhc-medi-cal","value":null,"status":"not-listed","source":"uhc-fhir-directory","asOf":"2026-10-23","checkedAt":"2026-10-23T17:42:33Z","staleAfter":"2027-04-21","confidence":"low","gate":"G3","sentence":"Not listed by UnitedHealthcare Medi-Cal plans for Winston Chang, DO (NPI 1952981730) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no.","checkedSources":[{"source":"uhc-fhir-directory","asOf":"2026-10-23"}]},{"id":"ins-uhc-medicare-advantage","value":null,"status":"not-listed","source":"uhc-fhir-directory","asOf":"2026-10-23","checkedAt":"2026-10-23T17:42:33Z","staleAfter":"2027-04-21","confidence":"low","gate":"G3","sentence":"Not listed by UnitedHealthcare Medicare Advantage plans for Winston Chang, DO (NPI 1952981730) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no.","checkedSources":[{"source":"uhc-fhir-directory","asOf":"2026-10-23"}]},{"id":"ins-va-va","value":null,"status":"not-listed","source":"uhc-fhir-directory","asOf":"2026-10-23","checkedAt":"2026-10-23T17:42:33Z","staleAfter":"2027-04-21","confidence":"low","gate":"G3","sentence":"Not listed by VA Community Care for Winston Chang, DO (NPI 1952981730) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no.","checkedSources":[{"source":"uhc-fhir-directory","asOf":"2026-10-23"}]}],"coverage":{"state":"CA","covered":true,"checkedAt":"2026-10-23T22:13:50Z"}},"publicRecord":{},"claim":{"claimed":false,"identityConfirmedOn":null},"actions":{"call":"tel:+13107100957","book":null,"payDoor":null,"saveContact":"/npi/1952981730.vcf","intent":null},"hiddenFacts":[],"answers":[{"q":"new-patients","status":"confirmed","answer":"Cigna's directory listed Winston Chang, DO (NPI 1952981730) as taking new patients on Oct 18, 2026.","factIds":["new-patients"]},{"q":"insurance","status":"confirmed","answer":"Listed for Winston Chang, DO (NPI 1952981730): Ambetter from Health Net, individual and family (Oct 16, 2026); Anthem Blue Cross Medi-Cal (Apr 21, 2026); Blue Shield of California, commercial (Oct 22, 2026); Blue Shield of California, individual and family (Oct 22, 2026); Blue Shield of California, Medicare Advantage (Oct 22, 2026); and 6 more on the page. Each listing names its source and date.","factIds":["ins-healthnet-marketplace","ins-anthem-medi-cal","ins-bsc-commercial","ins-bsc-marketplace","ins-bsc-medicare-advantage","ins-cigna-commercial","ins-healthnet-commercial","ins-medi-cal-ffs-medi-cal","ins-partnership-medi-cal","ins-uhc-commercial","ins-healthnet-medicare-advantage"]},{"q":"cost","status":"unknown","answer":"Gale has no record of what a first visit with Winston Chang, DO (NPI 1952981730) costs. Paying yourself? You can ask for a written Good Faith Estimate before the visit.","factIds":[]},{"q":"video","status":"unknown","answer":"Gale has no record of whether Winston Chang, DO (NPI 1952981730) offers video visits. Ask the office.","factIds":[]},{"q":"where","status":"self-reported","answer":"Winston Chang, DO (NPI 1952981730) is listed in Sacramento, CA by the NPPES registry, as of the registry file of Jun 8, 2026.","factIds":["city","state"]},{"q":"who-they-see","status":"unknown","answer":"Gale has no record of who Winston Chang, DO (NPI 1952981730) sees. Ask the office.","factIds":[]},{"q":"help-with","status":"unknown","answer":"Gale has no record of what Winston Chang, DO (NPI 1952981730) helps with beyond the registry specialty. Ask the office.","factIds":[]},{"q":"languages","status":"unknown","answer":"Gale has no record of the languages Winston Chang, DO (NPI 1952981730) speaks. Ask the office.","factIds":[]},{"q":"how-to-book","status":"self-reported","answer":"Call (310) 710-0957, the practice phone the NPPES registry lists for Winston Chang, DO (NPI 1952981730) (Jun 8, 2026).","factIds":["phone"]},{"q":"next-opening","status":"unknown","answer":"Gale has no record of the next opening for Winston Chang, DO (NPI 1952981730). Ask the office.","factIds":[]}],"sources":[{"id":"nppes-registry","name":"NPPES registry (CMS)","kind":"registry","asserting":true,"fileDate":"2026-06-08","url":"https://npiregistry.cms.hhs.gov/provider-view/1952981730","handCheck":null},{"id":"aetna-tic-2026-10","name":"Aetna's price file","kind":"price-file","asserting":false,"fileDate":"2026-10-05","url":null,"handCheck":{"wrong":3,"checked":12,"at":"2026-10-22"}},{"id":"ahf-fhir-directory","name":"AIDS Healthcare Foundation (PHP)'s directory","kind":"directory","asserting":true,"fileDate":"2026-09-19","url":null,"handCheck":null},{"id":"anthem-tic-2026-10","name":"Anthem Blue Cross's price file","kind":"price-file","asserting":false,"fileDate":"2026-10-01","url":null,"handCheck":{"wrong":8,"checked":11,"at":"2026-10-22"}},{"id":"bsc-fhir-directory","name":"Blue Shield of California's directory","kind":"directory","asserting":true,"fileDate":"2026-10-22","url":null,"handCheck":{"wrong":23,"checked":60,"at":"2026-10-22"}},{"id":"caloptima-fhir-directory","name":"CalOptima Health's directory","kind":"directory","asserting":true,"fileDate":"2026-10-11","url":null,"handCheck":{"wrong":4,"checked":12,"at":"2026-10-22"}},{"id":"ccah-fhir-directory","name":"Central California Alliance for Health's directory","kind":"directory","asserting":true,"fileDate":"2026-10-22","url":null,"handCheck":null},{"id":"cigna-fhir-directory","name":"Cigna's directory","kind":"directory","asserting":false,"fileDate":"2026-10-22","url":null,"handCheck":{"wrong":3,"checked":51,"at":"2026-10-22"}},{"id":"cms-medicare-clinicians","name":"CMS Medicare clinicians file","kind":"cms-file","asserting":true,"fileDate":"2026-10-02","url":null,"handCheck":{"wrong":0,"checked":23,"at":"2026-10-22"}},{"id":"dhcs-ffs-enrolled-2026-10-19","name":"DHCS Medi-Cal fee-for-service enrolment file","kind":"state-file","asserting":true,"fileDate":"2026-10-19","url":null,"handCheck":null},{"id":"dhcs-mcp-274-listing","name":"DHCS Medi-Cal plan network listing","kind":"state-file","asserting":true,"fileDate":"2026-04-21","url":null,"handCheck":null},{"id":"goldcoast-fhir-directory","name":"Gold Coast Health Plan's directory","kind":"directory","asserting":true,"fileDate":"2026-10-09","url":null,"handCheck":null},{"id":"healthnet-fhir-directory","name":"Health Net's directory","kind":"directory","asserting":true,"fileDate":"2026-10-22","url":null,"handCheck":{"wrong":6,"checked":12,"at":"2026-10-22"}},{"id":"hpsj-fhir-directory","name":"Health Plan of San Joaquin's directory","kind":"directory","asserting":true,"fileDate":"2026-10-02","url":null,"handCheck":null},{"id":"iehp-fhir-directory","name":"Inland Empire Health Plan (IEHP)'s directory","kind":"directory","asserting":true,"fileDate":"2026-10-16","url":null,"handCheck":{"wrong":4,"checked":12,"at":"2026-10-22"}},{"id":"kern-fhir-directory","name":"Kern Family Health Care's directory","kind":"directory","asserting":true,"fileDate":"2026-10-09","url":null,"handCheck":null},{"id":"lacare-fhir-directory","name":"L.A. Care Health Plan's directory","kind":"directory","asserting":true,"fileDate":"2026-10-19","url":null,"handCheck":{"wrong":4,"checked":12,"at":"2026-10-22"}},{"id":"partnership-fhir-directory","name":"Partnership HealthPlan of California's directory","kind":"directory","asserting":true,"fileDate":"2026-10-16","url":null,"handCheck":null},{"id":"sfhp-fhir-directory","name":"San Francisco Health Plan's directory","kind":"directory","asserting":true,"fileDate":"2026-10-01","url":null,"handCheck":null},{"id":"uhc-fhir-directory","name":"UnitedHealthcare's directory","kind":"directory","asserting":true,"fileDate":"2026-10-23","url":null,"handCheck":{"wrong":6,"checked":12,"at":"2026-10-22"}}],"terms":"https://www.gale.care/agents#terms","about":{"status":"How each fact is known. confirmed = Listed: a named directory, CMS file or state file lists it. inferred = Likely: a price file suggests it; a likely match is a lead, not a listing. self-reported: the clinician said it, to the NPPES registry or on Gale. not-listed: a source that lists every clinician it covers was read and does not list this one; that is not a no. unknown: no record; ask the office.","sentence":"The fact in one sentence that names the clinician, the NPI, the source and the date. It starts with the status word. Quote it whole.","asOf":"The date the source gives this record (YYYY-MM-DD). It is not the date of the event the record describes: an opt-out states its own start and end dates in its sentence.","checkedAt":"When Gale last read the source.","staleAfter":"After this date the fact keeps its status word and date, and staleNote says the record is old; later still it is dropped. A fact from a full CMS or state file the publisher has not replaced stays, marked stale, up to 270 days after the file's date, and its staleNote says Gale found no newer file.","staleNote":"On a fact past its fresh window only: the record's age, as its own sentence (\"The state file is old; Gale found no newer one.\"). It never changes the status.","confidence":"How far Gale trusts the source, measured on the source (high, medium, low, none). Never a judgment of the clinician.","cautions":"hand-check: Gale checked a sample of this source by hand and found errors (sources[].handCheck has the numbers). conflict: another source disagrees (see conflict). stale: the record is past its fresh window. A caution never changes the status.","gate":"The publication switch that lets this kind of fact show. It says nothing about the clinician.","checkedSources":"For a not-listed fact: each source that was read, with its date.","insurance.rows[].value":"payer is a short id for the plan and payerLabel its name. line is the kind of plan: commercial, marketplace (individual and family), medicare, medicare-advantage, medi-cal, tricare, va, workers-comp. accepts is true on a listing and false only on a dated refusal (a directory's \"not accepting\" or an opt-out), never from absence; on a lead (status inferred) it is null, because a price file never says a clinician accepts a plan. optOut, on an Original Medicare opt-out, is the opt-out's own start and end dates (from, to) from CMS's opt-out list. setting is where the listing says care happens (office, virtual, both), or null when the source does not say.","insurance.coverage":"covered: whether Gale read the insurance files for this state; checkedAt: when it last did.","sources[].kind":"registry: the NPPES registry. cms-file, state-file: government files. directory: an insurer's directory. price-file: an insurer's published rates, which give leads only. gale: Gale's booking system. clinician: the clinician on Gale.","sources[].fileDate":"The date of the source file Gale read.","sources[].handCheck":"Gale's hand check of the source: checked is how many of its entries Gale checked by hand, wrong how many of those were wrong, at the date of the check. It describes the source, not this clinician.","sources[].asserting":"true when the source lists every clinician it covers, so its silence can support a not-listed fact. Only such sources ever do.","factsHash":"Changes only when a fact changes, never on a re-check.","index.basis":"Why the page is or is not indexed. index-all: indexed. Anything else: not indexed, and no reason about the clinician is given.","exportId":"The data export the facts come from.","hiddenFacts":"Facts withheld because someone disputed them. No reason is given."}}