Margaret Anne Mahony, MD
Gynecology Physician · Santa Clara, CA
Margaret Anne Mahony, MD is a gynecology physician with a practice address in Santa Clara, California, and NPI 1457572414, issued on May 1, 2007. Check the license (California G56158, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Margaret Anne Mahony
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- G56158 CA
Self-reported in NPPES; status is on the state search - Practice location
- 710 Lawrence Expy, Santa Clara, CA 95051
- Phone
- (408) 851-1000
- Enumerated
- May 1, 2007
- Record last updated
- Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 369 in California → Look up another NPI →
Also registered at 710 Lawrence Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Iype Abraham, M.D.Internal Medicine Physician1578737243
- Oren Abramson, MDPediatric Gastroenterology Physician1265511307
- Jamie Adiarte, PA-CPhysician Assistant1073824413
- Sarah Adut, PHDClinical Psychologist1609484831
- Najla Ahmadzia, M.D.Student in an Organized Health Care Education/Training Program1568692580
- Farhana Ahmed, MDHospitalist Physician1215110002
Verify Margaret Anne Mahony in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56158Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average gynecology physician in 2024
416 Medicare Part D claims for 116 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Climara70 claims
- Estradiol61 claims
- Progesterone55 claims
- Dotti39 claims
- Yuvafem24 claims
- Estradiol (Twice Weekly)22 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.
Margaret Anne Mahony among 369 gynecology physician records in California
Margaret Anne Mahony, MD is one of 369 gynecology physician records with a practice address in California. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 60% of them.
- NPI issued2007 · 60% of these records are older, 24% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2021 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in California
There are 369 gynecology physician records in California.
All 369 in California → Every provider in Santa Clara → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Yanina Greenstein, M.D.Santa Clara, CA 950511720368665
- Padma Mallipeddi, MDSanta Clara, CA 950511669559597
- Lindsay Johnson, MDSanta Cruz, CA 950621073775441
- Anne-Marie Jackson, MDSanta Cruz, CA 950651740332832
- Paul Indman, M.D.Los Gatos, CA 950321770818619
- Michael Margolis, M.D.Los Gatos, CA 950321467475046
- Irving Olender, M.D.Los Gatos, CA 950321356453054
- Susan Hughmanick, M.D.Aptos, CA 950031467581553
Common questions
What is Margaret Anne Mahony, MD's NPI number?
Margaret Anne Mahony, MD's National Provider Identifier (NPI) is 1457572414, issued on May 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Anne Mahony, MD located?
The NPPES record lists a practice address at 710 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-1000. Providers update this record themselves, so call before visiting.
How can I verify Margaret Anne Mahony, MD's license?
NPPES lists California license number G56158, 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 Margaret Anne Mahony, MD prescribe under Medicare Part D?
In 2024, Margaret Anne Mahony, MD had 416 Medicare Part D claims for 116 beneficiaries; the average among gynecology physician prescribers was 299. 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.