Quick answers
- Where does Thomas R. Yamamoto see patients?
- Medicare's clinician data lists 3 practice locations, including San Gabriel, CA, Arcadia, CA and Carson, CA. Call before your visit to confirm the address.
- What is Thomas R. Yamamoto's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Thomas R. Yamamoto accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas R. Yamamoto 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 Thomas R. Yamamoto?
- (626) 576-0800, as listed in official Medicare / NPI Registry data.
- What is Thomas R. Yamamoto's NPI number?
- 1083633457. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Thomas R. Yamamoto is enrolled with Medicare (CMS data updated 2026-10-02).
- 207 S Santa Anita St, Suite 205San Gabriel, CA 91776 (626) 576‑0800
- 450 E Huntington DrArcadia, CA 91006 (626) 254‑2100
- 824 E Carson St, Suite 104Carson, CA 90745 (310) 830‑9706
Group practices
Medicare enrollment lists Thomas R. Yamamoto as a member of this group (CMS data updated 2026-10-02).
- Healthcare Partners Affiliates Medical Group754 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083633457 |
| 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
- 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