# Peter Stein, MD · NPI 1730295643

Rheumatology Physician · Greenbrae, CA · NPI 1730295643

Peter Stein, MD (NPI 1730295643) is listed in the NPPES registry with the specialty Rheumatology Physician in Greenbrae, CA, phone (415) 464-9604, as of the registry file of Jun 8, 2026.

Profile: https://www.gale.care/providers/ca/greenbrae/peter-stein-md-1730295643
Facts changed: 2026-10-23 · hash 7be0cbabb1bc1b40

## Facts

- Name: Peter Stein (NPPES registry, self-reported, 2026-06-08) {#name}
- Credential: MD (NPPES registry, self-reported, 2026-06-08) {#credential}
- Specialty: Rheumatology Physician (NPPES registry, self-reported, 2026-06-08) {#specialty}
- Registry stage: as-listed (NPPES registry, self-reported, 2026-06-08) {#registry-stage}
- NPI issued: 2006 (NPPES registry, listed, 2026-06-08) {#npi-issued}
- Practice type: sole-proprietor (NPPES registry, self-reported, 2026-06-08) {#practice-type}
- City: Greenbrae (NPPES registry, self-reported, 2026-06-08) {#city}
- State: CA (NPPES registry, self-reported, 2026-06-08) {#state}
- Phone: (415) 464-9604 (NPPES registry, self-reported, 2026-06-08) {#phone}
- New patients: yes (VA's community care locator, listed, 2026-10-22) {#new-patients}
- Video visits: both (CMS Medicare clinicians file, listed, 2026-10-02) {#video}
- Insurance: Listed: DHCS Medi-Cal plan network listing listed Peter Stein, MD (NPI 1730295643) for Alameda Alliance for Health Medi-Cal plans on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-alameda-medi-cal}
- Insurance: Listed: DHCS Medi-Cal plan network listing listed Peter Stein, MD (NPI 1730295643) for Anthem Blue Cross Medi-Cal on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-anthem-medi-cal}
- Insurance: Listed: DHCS Medi-Cal plan network listing listed Peter Stein, MD (NPI 1730295643) for Central California Alliance for Health Medi-Cal plans on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-ccah-medi-cal}
- Insurance: Listed: DHCS Medi-Cal plan network listing listed Peter Stein, MD (NPI 1730295643) 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: DHCS Medi-Cal fee-for-service enrolment file listed Peter Stein, MD (NPI 1730295643) for Medi-Cal fee-for-service on Oct 19, 2026. {#ins-medi-cal-ffs-medi-cal}
- Insurance: Listed: CMS Medicare clinicians file listed Peter Stein, MD (NPI 1730295643) 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: DHCS Medi-Cal plan network listing listed Peter Stein, MD (NPI 1730295643) for Partnership HealthPlan of California Medi-Cal plans on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-partnership-medi-cal}
- Insurance: Listed: DHCS Medi-Cal plan network listing listed Peter Stein, MD (NPI 1730295643) for San Francisco Health Plan Medi-Cal plans on Apr 21, 2026. The state file is old; Gale found no newer one. {#ins-sfhp-medi-cal}
- Insurance: Listed: UnitedHealthcare's directory listed Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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: VA's community care locator listed Peter Stein, MD (NPI 1730295643) for VA Community Care on Oct 22, 2026. {#ins-va-va}
- Insurance: Likely: Aetna's price file suggests Aetna pays Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) for workers' compensation (file of Oct 1, 2026). That is a lead, not a directory listing. {#ins-anthem-workers-comp}
- Insurance: Not listed by AIDS Healthcare Foundation (PHP) Medi-Cal plans for Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 commercial plans for Peter Stein, MD (NPI 1730295643) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-commercial}
- Insurance: Not listed by Blue Shield of California individual and family plans for Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Health Net commercial plans for Peter Stein, MD (NPI 1730295643) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-commercial}
- Insurance: Not listed by Ambetter from Health Net individual and family plans for Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-medi-cal}
- Insurance: Not listed by Wellcare by Health Net Medicare Advantage plans for Peter Stein, MD (NPI 1730295643) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-medicare-advantage}
- Insurance: Not listed by Health Plan of San Joaquin Medi-Cal plans for Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no. {#ins-optum-medicare-advantage}
- Insurance: Not listed by UnitedHealthcare individual and family plans for Peter Stein, MD (NPI 1730295643) 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 Peter Stein, MD (NPI 1730295643) in UnitedHealthcare's directory, file of Oct 23, 2026. That is not a no. {#ins-uhc-medi-cal}

## Answers

- New patients (listed): For Peter Stein, MD (NPI 1730295643): VA's community care locator: taking new patients (Oct 22). Cigna's directory: not taking new patients (Jun 14). It may depend on your plan.
- Insurance (listed): Listed for Peter Stein, MD (NPI 1730295643): Alameda Alliance for Health, Medi-Cal (Apr 21, 2026); Anthem Blue Cross Medi-Cal (Apr 21, 2026); Central California Alliance for Health, Medi-Cal (Apr 21, 2026); Contra Costa Health Plan, Medi-Cal (Apr 21, 2026); Medi-Cal fee-for-service (Oct 19, 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 Peter Stein, MD (NPI 1730295643) costs. Paying yourself? You can ask for a written Good Faith Estimate before the visit.
- Video visits (listed): CMS Medicare clinicians file listed Peter Stein, MD (NPI 1730295643) for video and in-person visits on Oct 2, 2026.
- Where (self-reported): Peter Stein, MD (NPI 1730295643) is listed in Greenbrae, 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 Peter Stein, MD (NPI 1730295643) sees. Ask the office.
- What they help with (not on record): Gale has no record of what Peter Stein, MD (NPI 1730295643) helps with beyond the registry specialty. Ask the office.
- Languages (not on record): Gale has no record of the languages Peter Stein, MD (NPI 1730295643) speaks. Ask the office.
- How to book (self-reported): Call (415) 464-9604, the practice phone the NPPES registry lists for Peter Stein, MD (NPI 1730295643) (Jun 8, 2026).
- Next opening (not on record): Gale has no record of the next opening for Peter Stein, MD (NPI 1730295643). Ask the office.

## Sources

- NPPES registry (CMS): file of 2026-06-08 · https://npiregistry.cms.hhs.gov/provider-view/1730295643
- 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.
- 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.
- 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.
- VA's community care locator: file of 2026-10-22

## 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