Quick answers
- Which hospitals does James R. Stewart work at?
- Medicare's official clinician data lists James R. Stewart at 2 hospitals: Alhambra Hospital Medical Center and San Gabriel Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James R. Stewart see patients?
- Medicare's clinician data lists 2 practice locations, including Alhambra, CA. Call before your visit to confirm the address.
- What is James R. Stewart's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does James R. Stewart accept Medicare assignment?
- Yes. Medicare's clinician data says James R. 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 James R. Stewart?
- (626) 289-5181, as listed in official Medicare / NPI Registry data.
- What is James R. Stewart's NPI number?
- 1689758294. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James R. Stewart works
Medicare's Facility Affiliation Data lists James R. Stewart at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alhambra Hospital Medical CenterAlhambra, CA · Acute Care Hospital · CCN 050281
- San Gabriel Valley Medical CenterSan Gabriel, CA · Acute Care Hospital · CCN 050132
Practice locations
Addresses where James R. Stewart is enrolled with Medicare (CMS data updated 2026-10-02).
- 1024 S Garfield AveAlhambra, CA 91801 (626) 289‑5181
- 1032 S Garfield AveAlhambra, CA 91801
Group practices
Medicare enrollment lists James R. Stewart as a member of this group (CMS data updated 2026-10-02).
- Stewart and Stewart a Medical Corporation5 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Alhambra
Clinicians with the same Medicare primary specialty in Alhambra, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689758294 |
| 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