Quick answers
- Which hospitals does John E. Stewart work at?
- Medicare's official clinician data lists John E. Stewart at 5 hospitals: AHMC Seton Medical Center, Kaiser Foundation Hospital - South San Francisco, Plumas District Hospital, Saint Mary's Regional Medical Center and Tahoe Forest Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John E. Stewart see patients?
- Medicare's clinician data lists 3 practice locations, including South San Francisco, CA, Daly City, CA and Reno, NV. Call before your visit to confirm the address.
- What is John E. Stewart's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John E. Stewart accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Stewart accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John E. Stewart?
- (650) 742-2000, as listed in official Medicare / NPI Registry data.
- What is John E. Stewart's NPI number?
- 1083715007. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John E. Stewart works
Medicare's Facility Affiliation Data lists John E. Stewart at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AHMC Seton Medical CenterDaly City, CA · Acute Care Hospital · CCN 050289
- Kaiser Foundation Hospital - South San FranciscoSouth San Francisco, CA · Acute Care Hospital · CCN 050070
- Plumas District HospitalQuincy, CA · Critical Access Hospital · CCN 051326
- Saint Mary's Regional Medical CenterReno, NV · Acute Care Hospital · CCN 290009
- Tahoe Forest HospitalTruckee, CA · Critical Access Hospital · CCN 051328
Practice locations
Addresses where John E. Stewart is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 El Camino RealSouth San Francisco, CA 94080 (650) 742‑2000
- 1900 Sullivan AveDaly City, CA 94015 (415) 237‑3185
- 235 W 6th StReno, NV 89503 (775) 770‑3000
Group practices
Medicare enrollment lists John E. Stewart as a member of these groups (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
- Saint Marys Medical Group Inc52 clinicians in the group
- Clarkian Hospitalist Corporation10 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in South San Francisco
Clinicians with the same Medicare primary specialty in South San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083715007 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians