Quick answers
- Which hospitals does Michael Tam work at?
- Medicare's official clinician data lists Michael Tam at 1 hospital: Alta Bates Summit Medical Center - Alta Bates Camp…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Tam see patients?
- Medicare's clinician data lists 5 practice locations, including Castro Valley, CA, Berkeley, CA and Fremont, CA. Call before your visit to confirm the address.
- What is Michael Tam's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Michael Tam accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Tam 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.
- Does Michael Tam offer telehealth?
- Medicare's clinician data says Michael Tam offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Michael Tam?
- (510) 886-3400, as listed in official Medicare / NPI Registry data.
- What is Michael Tam's NPI number?
- 1619529518. 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 Tam works
Medicare's Facility Affiliation Data lists Michael Tam at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical Center - Alta Bates Camp…Berkeley, CA · Acute Care Hospital · CCN 050305
Practice locations
Addresses where Michael Tam is enrolled with Medicare (CMS data updated 2026-10-02).
- 20101 Lake Chabot RdCastro Valley, CA 94546 (510) 886‑3400
- 20103 Lake Chabot RdCastro Valley, CA 94546 (510) 727‑3256
- 2850 Telegraph AveBerkeley, CA 94705
- 3200 Kearney StFremont, CA 94538 (510) 490‑1222
- 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020
Group practices
Medicare enrollment lists Michael Tam as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Castro Valley
Clinicians with the same Medicare primary specialty in Castro Valley, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1619529518 |
| 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