Quick answers
- Which hospitals does Michael T. Temkin work at?
- Medicare's official clinician data lists Michael T. Temkin at 2 hospitals: John Muir Medical Center - Walnut Creek Campus and San Ramon Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael T. Temkin see patients?
- Medicare's clinician data lists 2 practice locations, including San Ramon, CA. Call before your visit to confirm the address.
- What is Michael T. Temkin's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michael T. Temkin accept Medicare assignment?
- Medicare's clinician data says Michael T. Temkin may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Michael T. Temkin?
- (925) 866-3900, as listed in official Medicare / NPI Registry data.
- What is Michael T. Temkin's NPI number?
- 1194787929. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael T. Temkin works
Medicare's Facility Affiliation Data lists Michael T. Temkin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- San Ramon Regional Medical CenterSan Ramon, CA · Acute Care Hospital · CCN 050689
Practice locations
Addresses where Michael T. Temkin is enrolled with Medicare (CMS data updated 2026-10-02).
- 1081 Market PlSan Ramon, CA 94583 (925) 866‑3900
- 1081 Market Pl, Suite 300San Ramon, CA 94583
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Ramon
Clinicians with the same Medicare primary specialty in San Ramon, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1194787929 |
| 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