Quick answers
- Which hospitals does Michael Y. Zhang work at?
- Medicare's official clinician data lists Michael Y. Zhang at 4 hospitals: Alta Bates Summit Medical Center - Alta Bates Camp…, NorthBay Medical Center, Sutter Medical Center, Sacramento and Sutter Solano Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Y. Zhang see patients?
- Medicare's clinician data lists 2 practice locations, including Vallejo, CA and San Francisco, CA. Call before your visit to confirm the address.
- What is Michael Y. Zhang's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Michael Y. Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Y. Zhang 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 Y. Zhang offer telehealth?
- Medicare's clinician data says Michael Y. Zhang offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Michael Y. Zhang?
- (707) 427-4900, as listed in official Medicare / NPI Registry data.
- What is Michael Y. Zhang's NPI number?
- 1861856718. 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 Y. Zhang works
Medicare's Facility Affiliation Data lists Michael Y. Zhang 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
- NorthBay Medical CenterFairfield, CA · Acute Care Hospital · CCN 050367
- Sutter Medical Center, SacramentoSacramento, CA · Acute Care Hospital · CCN 050108
- Sutter Solano Medical CenterVallejo, CA · Acute Care Hospital · CCN 050101
Practice locations
Addresses where Michael Y. Zhang is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Hospital Dr, Suite 200Vallejo, CA 94589 (707) 427‑4900
- 2333 Buchanan StSan Francisco, CA 94115 (415) 923‑3600
Group practices
Medicare enrollment lists Michael Y. Zhang as a member of this group (CMS data updated 2026-10-02).
- Northern California Radiation Therapists and Oncologists Medical Group8 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Medical school | University Of Washington School Of Medicine |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1861856718 |
| 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