NPPES file of Aug 9, 2026

Yanina Greenstein, M.D.

Gynecology Physician · Santa Clara, CA

Yanina Greenstein, M.D. is a gynecology physician with a practice address in Santa Clara, California, and NPI 1720368665, issued on Aug 24, 2011. Check the license (California A116499, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1720368665
Name
Yanina Greenstein
Credential
M.D.
Primary taxonomy
Gynecology Physician 207VG0400X
License number
A116499 CA
Self-reported in NPPES; status is on the state search
Practice location
710 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-3842
Enumerated
Aug 24, 2011
Record last updated
Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131226000271); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2009
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 710 Lawrence Expy

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

  1. Iype Abraham, M.D.Internal Medicine Physician1578737243
  2. Oren Abramson, MDPediatric Gastroenterology Physician1265511307
  3. Jamie Adiarte, PA-CPhysician Assistant1073824413
  4. Sarah Adut, PHDClinical Psychologist1609484831
  5. Najla Ahmadzia, M.D.Student in an Organized Health Care Education/Training Program1568692580
  6. Farhana Ahmed, MDHospitalist Physician1215110002

Verify Yanina Greenstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A116499
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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58% fewer Medicare Part D claims than the average gynecology physician in 2024

126 Medicare Part D claims for 52 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Yanina Greenstein126
  2. Specialty average299

Most prescribed

  1. Estradiol51 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

  1. Permanente Medical Group IncTracy, CA

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

Yanina Greenstein among 369 gynecology physician records in California

Yanina Greenstein, 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 2011, is newer than 86% of them.

  • NPI issued2011 · 86% of these records are older, 12% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2009 · median 1995 among the 141 with a school on file
  • 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.

The 8 gynecology physician records with the nearest ZIP codes

  1. Margaret Mahony, MDSanta Clara, CA 950511457572414
  2. Padma Mallipeddi, MDSanta Clara, CA 950511669559597
  3. Lindsay Johnson, MDSanta Cruz, CA 950621073775441
  4. Anne-Marie Jackson, MDSanta Cruz, CA 950651740332832
  5. Paul Indman, M.D.Los Gatos, CA 950321770818619
  6. Michael Margolis, M.D.Los Gatos, CA 950321467475046
  7. Irving Olender, M.D.Los Gatos, CA 950321356453054
  8. Susan Hughmanick, M.D.Aptos, CA 950031467581553

Common questions

What is Yanina Greenstein, M.D.'s NPI number?

Yanina Greenstein, M.D.'s National Provider Identifier (NPI) is 1720368665, issued on Aug 24, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Yanina Greenstein, M.D. located?

The NPPES record lists a practice address at 710 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-3842. Providers update this record themselves, so call before visiting.

How can I verify Yanina Greenstein, M.D.'s license?

NPPES lists California license number A116499, 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 Yanina Greenstein, M.D. prescribe under Medicare Part D?

In 2024, Yanina Greenstein, M.D. had 126 Medicare Part D claims for 52 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.