NPPES file of Aug 9, 2026

Michael Thomas Margolis, M.D.

Gynecology Physician · Los Gatos, CA

Michael Thomas Margolis, M.D. is a gynecology physician with a practice address in Los Gatos, California, and NPI 1467475046, issued on Jul 25, 2006. Check the license (California G83323, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467475046
Name
Michael Thomas Margolis
Credential
M.D.
Primary taxonomy
Gynecology Physician 207VG0400X
License number
G83323 CA
Self-reported in NPPES; status is on the state search
Practice location
825 Pollard RD, Los Gatos, CA 95032
Phone
(408) 370-9098
Enumerated
Jul 25, 2006
Record last updated
Oct 26, 2023
Fax
(650) 422-3685
Medicaid ID
GR0101630 CA
Medicare enrollment
Enrolled (PECOS I20150213001744); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 1987
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 825 Pollard RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jeremy Chin, O.D.Optometrist1588046387
  2. Janis Gong, O.D.Optometrist1962477109
  3. Minal Kapoor, MDInfectious Disease Physician1962549220
  4. Robert Kwok, MDPediatrics Physician1114028453
  5. Kenneth Sweeney, O.D.Optometrist1962474221
  6. Marina Yam, M.D.Specialist1538107636

Verify Michael Thomas Margolis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G83323
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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2.2 times the Medicare Part D claims of the average gynecology physician in 2024

671 Medicare Part D claims for 187 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. 88 claims were for opioids.

  1. Michael Margolis671
  2. Specialty average299

Most prescribed

  1. Imipramine Hcl252 claims
  2. Nitrofurantoin Mono-Macro71 claims
  3. Naproxen Sodium61 claims
  4. Hydrocodone-Acetaminophen55 claims
  5. Estradiol31 claims
  6. Acetaminophen-Codeine30 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.

The MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Ucsf Health Medical FoundationRedwood City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Thomas Margolis among 369 gynecology physician records in California

Michael Thomas Margolis, M.D. 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 40% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1987 · median 1995 among the 141 with a school on file
  • Record last updated2023 · 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.

The 8 gynecology physician records with the nearest ZIP codes

  1. Paul Indman, M.D.Los Gatos, CA 950321770818619
  2. Irving Olender, M.D.Los Gatos, CA 950321356453054
  3. Yanina Greenstein, M.D.Santa Clara, CA 950511720368665
  4. Margaret Mahony, MDSanta Clara, CA 950511457572414
  5. Padma Mallipeddi, MDSanta Clara, CA 950511669559597
  6. Susan Hughmanick, M.D.Aptos, CA 950031467581553
  7. Lindsay Johnson, MDSanta Cruz, CA 950621073775441
  8. Anne-Marie Jackson, MDSanta Cruz, CA 950651740332832

Common questions

What is Michael Thomas Margolis, M.D.'s NPI number?

Michael Thomas Margolis, M.D.'s National Provider Identifier (NPI) is 1467475046, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Thomas Margolis, M.D. located?

The NPPES record lists a practice address at 825 Pollard RD, Los Gatos, CA, 95032. Phone: (408) 370-9098. Providers update this record themselves, so call before visiting.

How can I verify Michael Thomas Margolis, M.D.'s license?

NPPES lists California license number G83323, 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 Michael Thomas Margolis, M.D. prescribe under Medicare Part D?

In 2024, Michael Thomas Margolis, M.D. had 671 Medicare Part D claims for 187 beneficiaries; the average among gynecology physician prescribers was 299. Part D covers Medicare prescriptions only.

What is Michael Thomas Margolis, M.D.'s MIPS final score?

The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.