Quick answers
- Does Zhen-Zhou Feng accept Medicare assignment?
- Yes. Medicare's clinician data says Zhen-Zhou Feng accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Zhen-Zhou Feng's NPI number?
- 1871600031. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Zhen-Zhou Feng works
Medicare's Facility Affiliation Data lists Zhen-Zhou Feng at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Kaiser Foundation Hospital-Santa RosaSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050690
Practice locations
Addresses where Zhen-Zhou Feng is enrolled with Medicare (CMS data updated October 2, 2026).
- 3925 Old Redwood HwySanta Rosa, CA 95403 (707) 393‑4033
- 3975 Old Redwood HwySanta Rosa, CA 95403 (707) 393‑4000
- 401 Bicentennial WaySanta Rosa, CA 95403 (707) 393‑4000
- 7373 W LaneStockton, CA 95210 (209) 476‑2000
Group practices
Medicare enrollment lists Zhen-Zhou Feng as a member of this group (CMS data updated October 2, 2026).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Santa Rosa
Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.
Other clinicians in Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Miami, Lm Miller School Of Medicine |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871600031 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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