Marilyn Masten Honegger, M.D.
Obstetrics & Gynecology Physician · Orinda, CA
Marilyn Masten Honegger, M.D. is an obstetrics & gynecology physician with a practice address in Orinda, California, and NPI 1376548156, issued on Jun 17, 2005. Check the license (California G53701, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marilyn Masten Honegger
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G53701 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12 Camino Encinas, Orinda, CA 94563
- Phone
- (510) 204-8180
- Enumerated
- Jun 17, 2005
- Record last updated
- Oct 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (925) 254-0687
- Medicare enrollment
- Enrolled (PECOS I20051122000468); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1976
- Entity
- Type 1 · individual
Also registered at 12 Camino Encinas
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omeed Atefi, DOFamily Medicine Physician1073141099
- Jyothi Bachwani, M.D.Internal Medicine Physician1659489979
- John Carrigg, MDOtolaryngology Physician1285652859
- Anny Ching, M.D.Family Medicine Physician1376961490
- Jill Foley, M.D.Obstetrics & Gynecology Physician1174631709
- Roger Iliff, M.D.Family Medicine Physician1235244716
Verify Marilyn Masten Honegger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G53701Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
158 Medicare Part D claims for 43 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Estradiol45 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationOrinda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 obstetrics & gynecology physician records list a practice address in Orinda
They are 4 of the 278 NPPES records with a practice address in Orinda, and 5,088 obstetrics & gynecology physician records in California.
All 4 in Orinda → All 5,088 in California → Every provider in Orinda →
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Ahmed Abdelaziz, MDSanta Maria, CA1790039733
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
Common questions
What is Marilyn Masten Honegger, M.D.'s NPI number?
Marilyn Masten Honegger, M.D.'s National Provider Identifier (NPI) is 1376548156, issued on Jun 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Masten Honegger, M.D. located?
The NPPES record lists a practice address at 12 Camino Encinas, Orinda, CA, 94563. Phone: (510) 204-8180. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Masten Honegger, M.D.'s license?
NPPES lists California license number G53701, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marilyn Masten Honegger, M.D. prescribe under Medicare Part D?
In 2024, Marilyn Masten Honegger, M.D. had 158 Medicare Part D claims for 43 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.