Quick answers
- Which hospitals does Gregory Fung work at?
- Medicare's official clinician data lists Gregory Fung at 3 hospitals: California Pacific Medical Center- Van Ness Campus, Laguna Honda Hospital & Rehabilitation Center and Zuckerberg San Francisco General Hospital & Trauma Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Fung see patients?
- Medicare's clinician data lists 2 practice locations, including San Francisco, CA. Call before your visit to confirm the address.
- What is Gregory Fung's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Gastroenterology.
- Does Gregory Fung accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Fung 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 Gregory Fung offer telehealth?
- Medicare's clinician data says Gregory Fung offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gregory Fung?
- (415) 362-3336, as listed in official Medicare / NPI Registry data.
- What is Gregory Fung's NPI number?
- 1700970795. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory Fung works
Medicare's Facility Affiliation Data lists Gregory Fung at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA · Acute Care Hospital · CCN 050047
- Laguna Honda Hospital & Rehabilitation CenterSan Francisco, CA · Acute Care Hospital · CCN 050668
- Zuckerberg San Francisco General Hospital & Trauma CenterSan Francisco, CA · Acute Care Hospital · CCN 050228
Practice locations
Addresses where Gregory Fung is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Shrader St, Suite 500San Francisco, CA 94117 (415) 362‑3336
- 375 Laguna Honda BlvdSan Francisco, CA 94116
Group practices
Medicare enrollment lists Gregory Fung as a member of these groups (CMS data updated 2026-10-02).
- City and County of San Francisco365 clinicians in the group
- San Francisco Digestive Disease Medical Group Inc a Prof Corp3 clinicians in the group
Specialties
- Internal Medicineprimary
- Gastroenterologyalso
Other internal medicine doctors in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1700970795 |
| 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