Quick answers
- Which hospitals does Marilyn M. Honegger work at?
- Medicare's official clinician data lists Marilyn M. Honegger at 3 hospitals: Alta Bates Summit Medical Center, Alta Bates Summit Medical Center - Alta Bates Camp… and California Pacific Medical Center-Davies Campus Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marilyn M. Honegger see patients?
- Medicare's clinician data lists 1 practice location in Orinda, CA. Call before your visit to confirm the address.
- What is Marilyn M. Honegger's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Marilyn M. Honegger accept Medicare assignment?
- Yes. Medicare's clinician data says Marilyn M. Honegger 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 Marilyn M. Honegger?
- (510) 204-8180, as listed in official Medicare / NPI Registry data.
- What is Marilyn M. Honegger's NPI number?
- 1376548156. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marilyn M. Honegger works
Medicare's Facility Affiliation Data lists Marilyn M. Honegger 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 CenterOakland, CA · Acute Care Hospital · CCN 050043
- Alta Bates Summit Medical Center - Alta Bates Camp…Berkeley, CA · Acute Care Hospital · CCN 050305
- California Pacific Medical Center-Davies Campus HospitalSan Francisco, CA · Acute Care Hospital · CCN 050008
Practice locations
Addresses where Marilyn M. Honegger is enrolled with Medicare (CMS data updated 2026-10-02).
- 12 Camino EncinasOrinda, CA 94563 (510) 204‑8180
Group practices
Medicare enrollment lists Marilyn M. Honegger as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Orinda
Clinicians with the same Medicare primary specialty in Orinda, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1976 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376548156 |
| 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