# Katayoun Lotfi, MD · NPI 1619288685 Endocrinology, Diabetes & Metabolism Physician · Mountain View, CA · NPI 1619288685 Katayoun Lotfi, MD (NPI 1619288685) is listed in the NPPES registry with the specialty Endocrinology, Diabetes & Metabolism Physician in Mountain View, CA, phone (650) 934-7500, as of the registry file of Jun 8, 2026. Profile: https://www.gale.care/providers/ca/mountain-view/katayoun-lotfi-md-1619288685 Facts changed: 2026-10-23 · hash fd4ed9537a10e671 ## Facts - Name: Katayoun Lotfi (NPPES registry, self-reported, 2026-06-08) {#name} - Credential: MD (NPPES registry, self-reported, 2026-06-08) {#credential} - Specialty: Endocrinology, Diabetes & Metabolism Physician (NPPES registry, self-reported, 2026-06-08) {#specialty} - Registry stage: as-listed (NPPES registry, self-reported, 2026-06-08) {#registry-stage} - NPI issued: 2010 (NPPES registry, listed, 2026-06-08) {#npi-issued} - Practice type: not-sole-proprietor (NPPES registry, self-reported, 2026-06-08) {#practice-type} - City: Mountain View (NPPES registry, self-reported, 2026-06-08) {#city} - State: CA (NPPES registry, self-reported, 2026-06-08) {#state} - Phone: (650) 934-7500 (NPPES registry, self-reported, 2026-06-08) {#phone} - New patients: no (Central California Alliance for Health's directory, listed, 2026-10-21) {#new-patients} - Video visits: both (CMS Medicare clinicians file, listed, 2026-10-02) {#video} - Insurance: Listed: Blue Shield of California's directory listed Katayoun Lotfi, MD (NPI 1619288685) 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. {#ins-bsc-commercial} - Insurance: Listed: Central California Alliance for Health's directory listed Katayoun Lotfi, MD (NPI 1619288685) for Central California Alliance for Health Medi-Cal plans on Oct 21, 2026. {#ins-ccah-medi-cal} - Insurance: Listed: Cigna's directory listed Katayoun Lotfi, MD (NPI 1619288685) 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. {#ins-cigna-commercial} - Insurance: Listed: DHCS Medi-Cal plan network listing listed Katayoun Lotfi, MD (NPI 1619288685) for Contra Costa Health Plan Medi-Cal plans on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-cchp-medi-cal} - Insurance: Listed: Health Net's directory listed Katayoun Lotfi, MD (NPI 1619288685) for Health Net commercial plans on Oct 20, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office. {#ins-healthnet-commercial} - Insurance: Listed: DHCS Medi-Cal plan network listing listed Katayoun Lotfi, MD (NPI 1619288685) for Health Plan of San Mateo Medi-Cal plans on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-hpsm-medi-cal} - Insurance: Listed: DHCS Medi-Cal fee-for-service enrolment file listed Katayoun Lotfi, MD (NPI 1619288685) for Medi-Cal fee-for-service on Oct 19, 2026. {#ins-medi-cal-ffs-medi-cal} - Insurance: Listed: CMS Medicare clinicians file listed Katayoun Lotfi, MD (NPI 1619288685) for Original Medicare on Oct 2, 2026. Gale checked 23 listings in this file by hand on Oct 22, 2026; none were wrong. {#ins-medicare-medicare} - Insurance: Listed: UnitedHealthcare's directory listed Katayoun Lotfi, MD (NPI 1619288685) 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. {#ins-uhc-commercial} - Insurance: Listed: UnitedHealthcare's directory listed Katayoun Lotfi, MD (NPI 1619288685) for UnitedHealthcare Medicare Advantage 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. {#ins-uhc-medicare-advantage} - Insurance: Listed: Health Net's directory listed Katayoun Lotfi, MD (NPI 1619288685) for Wellcare by Health Net Medicare Advantage plans on Oct 21, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office. {#ins-healthnet-medicare-advantage} - Insurance: Likely: Aetna's price file suggests Aetna pays Katayoun Lotfi, MD (NPI 1619288685) for commercial plans (file of Oct 5, 2026). That is a lead, not a directory listing. {#ins-aetna-commercial} - Insurance: Likely: Anthem Blue Cross's price file suggests Anthem Blue Cross pays Katayoun Lotfi, MD (NPI 1619288685) for commercial plans (file of Oct 1, 2026). That is a lead, not a directory listing. {#ins-anthem-commercial} - Insurance: Likely: Anthem Blue Cross's price file suggests Anthem Blue Cross pays Katayoun Lotfi, MD (NPI 1619288685) for individual and family plans (file of Oct 1, 2026). That is a lead, not a directory listing. {#ins-anthem-marketplace} - Insurance: Likely: Anthem Blue Cross's price file suggests Anthem Blue Cross pays Katayoun Lotfi, MD (NPI 1619288685) for workers' compensation (file of Oct 1, 2026). That is a lead, not a directory listing. {#ins-anthem-workers-comp} - Insurance: Likely: Sutter Health Plus's price file suggests Sutter Health Plus pays Katayoun Lotfi, MD (NPI 1619288685) for commercial plans (file of Oct 1, 2026). That is a lead, not a directory listing. {#ins-sutter-commercial} - Insurance: Not listed by AIDS Healthcare Foundation (PHP) Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 19, 2026. That is not a no. {#ins-ahf-medi-cal} - Insurance: Not listed by AIDS Healthcare Foundation (PHP) Medicare Advantage plans for Katayoun Lotfi, MD (NPI 1619288685) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 15, 2026. That is not a no. {#ins-ahf-medicare-advantage} - Insurance: Not listed by Blue Shield of California individual and family plans for Katayoun Lotfi, MD (NPI 1619288685) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-marketplace} - Insurance: Not listed by Blue Shield of California Promise Health Plan Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-medi-cal} - Insurance: Not listed by Blue Shield of California Medicare Advantage plans for Katayoun Lotfi, MD (NPI 1619288685) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-medicare-advantage} - Insurance: Not listed by CalOptima Health Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in CalOptima Health's directory, file of Oct 11, 2026. That is not a no. {#ins-caloptima-medi-cal} - Insurance: Not listed by CalViva Health Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Health Net's directory, file of Oct 21, 2026. That is not a no. {#ins-calviva-medi-cal} - Insurance: Not listed by Gold Coast Health Plan Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Gold Coast Health Plan's directory, file of Oct 9, 2026. That is not a no. {#ins-goldcoast-medi-cal} - Insurance: Not listed by Ambetter from Health Net individual and family plans for Katayoun Lotfi, MD (NPI 1619288685) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-marketplace} - Insurance: Not listed by Health Net Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-medi-cal} - Insurance: Not listed by Health Plan of San Joaquin Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Health Plan of San Joaquin's directory, file of Oct 2, 2026. That is not a no. {#ins-hpsj-medi-cal} - Insurance: Not listed by Humana Medicare Advantage plans for Katayoun Lotfi, MD (NPI 1619288685) in Humana's directory, file of Oct 23, 2026. That is not a no. {#ins-humana-medicare-advantage} - Insurance: Not listed by Inland Empire Health Plan (IEHP) individual and family plans for Katayoun Lotfi, MD (NPI 1619288685) in Inland Empire Health Plan (IEHP)'s directory, file of Jul 27, 2026. That is not a no. {#ins-iehp-marketplace} - Insurance: Not listed by Inland Empire Health Plan (IEHP) Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Inland Empire Health Plan (IEHP)'s directory, file of Jul 29, 2026. That is not a no. {#ins-iehp-medi-cal} - Insurance: Not listed by Inland Empire Health Plan (IEHP) Medicare Advantage plans for Katayoun Lotfi, MD (NPI 1619288685) in Inland Empire Health Plan (IEHP)'s directory, file of Oct 16, 2026. That is not a no. {#ins-iehp-medicare-advantage} - Insurance: Not listed by Kern Family Health Care Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Kern Family Health Care's directory, file of Oct 9, 2026. That is not a no. {#ins-kern-medi-cal} - Insurance: Not listed by L.A. Care Health Plan Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in L.A. Care Health Plan's directory, file of Oct 19, 2026. That is not a no. {#ins-lacare-medi-cal} - Insurance: Not listed by Optum Behavioral Health Medicare Advantage plans for Katayoun Lotfi, MD (NPI 1619288685) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no. {#ins-optum-medicare-advantage} - Insurance: Not listed by Partnership HealthPlan of California Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in Partnership HealthPlan of California's directory, file of Oct 16, 2026. That is not a no. {#ins-partnership-medi-cal} - Insurance: Not listed by San Francisco Health Plan Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in San Francisco Health Plan's directory, file of Oct 1, 2026. That is not a no. {#ins-sfhp-medi-cal} - Insurance: Not listed by UnitedHealthcare individual and family plans for Katayoun Lotfi, MD (NPI 1619288685) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no. {#ins-uhc-marketplace} - Insurance: Not listed by UnitedHealthcare Medi-Cal plans for Katayoun Lotfi, MD (NPI 1619288685) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no. {#ins-uhc-medi-cal} - Insurance: Not listed by VA Community Care for Katayoun Lotfi, MD (NPI 1619288685) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no. {#ins-va-va} ## Answers - New patients (listed): For Katayoun Lotfi, MD (NPI 1619288685): Central California Alliance for Health's directory: not taking new patients (Oct 21). Cigna's directory: taking new patients (Oct 18). It may depend on your plan. - Insurance (listed): Listed for Katayoun Lotfi, MD (NPI 1619288685): Blue Shield of California, commercial (Oct 22, 2026); Central California Alliance for Health, Medi-Cal (Oct 21, 2026); Cigna / Evernorth, commercial (Oct 18, 2026); Contra Costa Health Plan, Medi-Cal (Apr 21, 2026); Health Net, commercial (Oct 20, 2026); and 6 more on the page. Each listing names its source and date. - First-visit cost (not on record): Gale has no record of what a first visit with Katayoun Lotfi, MD (NPI 1619288685) costs. Paying yourself? You can ask for a written Good Faith Estimate before the visit. - Video visits (listed): CMS Medicare clinicians file listed Katayoun Lotfi, MD (NPI 1619288685) for video and in-person visits on Oct 2, 2026. - Where (self-reported): Katayoun Lotfi, MD (NPI 1619288685) is listed in Mountain View, CA by the NPPES registry, as of the registry file of Jun 8, 2026. - Who they see (not on record): Gale has no record of who Katayoun Lotfi, MD (NPI 1619288685) sees. Ask the office. - What they help with (not on record): Gale has no record of what Katayoun Lotfi, MD (NPI 1619288685) helps with beyond the registry specialty. Ask the office. - Languages (not on record): Gale has no record of the languages Katayoun Lotfi, MD (NPI 1619288685) speaks. Ask the office. - How to book (self-reported): Call (650) 934-7500, the practice phone the NPPES registry lists for Katayoun Lotfi, MD (NPI 1619288685) (Jun 8, 2026). - Next opening (not on record): Gale has no record of the next opening for Katayoun Lotfi, MD (NPI 1619288685). Ask the office. ## Sources - NPPES registry (CMS): file of 2026-06-08 · https://npiregistry.cms.hhs.gov/provider-view/1619288685 - Aetna's price file: file of 2026-10-05 · Gale checked 12 leads from this price file by hand on Oct 22, 2026; 3 were wrong, so confirm with the office. - AIDS Healthcare Foundation (PHP)'s directory: file of 2026-09-19 - Anthem Blue Cross's price file: file of 2026-10-01 · Gale checked 11 leads from this price file by hand on Oct 22, 2026; 8 were wrong, so confirm with the office. - Blue Shield of California's directory: file of 2026-10-22 · Gale checked 60 listings in this directory by hand on Oct 22, 2026; 23 were wrong, so confirm with the office. - CalOptima Health's directory: file of 2026-10-11 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 4 were wrong, so confirm with the office. - Central California Alliance for Health's directory: file of 2026-10-22 - Cigna's directory: file of 2026-10-22 · Gale checked 51 listings in this directory by hand on Oct 22, 2026; 3 were wrong, so confirm with the office. - CMS Medicare clinicians file: file of 2026-10-02 · Gale checked 23 listings in this file by hand on Oct 22, 2026; none were wrong. - DHCS Medi-Cal fee-for-service enrolment file: file of 2026-10-19 - DHCS Medi-Cal plan network listing: file of 2026-04-21 - Gold Coast Health Plan's directory: file of 2026-10-09 - Health Net's directory: file of 2026-10-22 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office. - Health Plan of San Joaquin's directory: file of 2026-10-02 - Humana's directory: file of 2026-10-23 - Inland Empire Health Plan (IEHP)'s directory: file of 2026-10-16 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 4 were wrong, so confirm with the office. - Kern Family Health Care's directory: file of 2026-10-09 - L.A. Care Health Plan's directory: file of 2026-10-19 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 4 were wrong, so confirm with the office. - Partnership HealthPlan of California's directory: file of 2026-10-16 - San Francisco Health Plan's directory: file of 2026-10-01 - Sutter Health Plus's price file: file of 2026-10-01 - UnitedHealthcare's directory: file of 2026-10-23 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office. ## About these facts - Status words: 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. - Dates: 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. - Hash: Changes only when a fact changes, never on a re-check. This provider is not affiliated with Gale. This listing is compiled from the NPPES public registry (CMS). Terms: https://www.gale.care/agents#terms