Quick answers
- Which hospitals does Benjamin H. Maeck Iii work at?
- Medicare's official clinician data lists Benjamin H. Maeck Iii at 5 hospitals: California Pacific Medical Center- Van Ness Campus, Marinhealth Medical Center, UCSF Health Saint Francis Hospital, UCSF Health St. Mary's Hospital and UCSF Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Benjamin H. Maeck Iii see patients?
- Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
- What is Benjamin H. Maeck Iii's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Benjamin H. Maeck Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Benjamin H. Maeck Iii 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 Benjamin H. Maeck Iii?
- (415) 571-8928, as listed in official Medicare / NPI Registry data.
- What is Benjamin H. Maeck Iii's NPI number?
- 1487720454. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Benjamin H. Maeck Iii works
Medicare's Facility Affiliation Data lists Benjamin H. Maeck Iii 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
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · CCN 050360
- UCSF Health Saint Francis HospitalSan Francisco, CA · Acute Care Hospital · CCN 050152
- UCSF Health St. Mary's HospitalSan Francisco, CA · Acute Care Hospital · CCN 050457
- UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · CCN 050454
Practice locations
Addresses where Benjamin H. Maeck Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 2250 Hayes St, Suite 205San Francisco, CA 94117 (415) 571‑8928
Specialties
- Internal Medicineprimary
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 Vermont College Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487720454 |
| 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