NPPES file of Aug 9, 2026

Steven Chen, MD

Obstetrics & Gynecology Physician · Santa Clara, CA

Steven Chen, MD is an obstetrics & gynecology physician with a practice address in Santa Clara, California, and NPI 1245319987, issued on Nov 3, 2006. Check the license (California G78348, 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
1245319987
Name
Steven Chen
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G78348 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
Nov 3, 2006
Record last updated
Dec 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00G783480 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). 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 Steven Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G78348
    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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27% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

120 Medicare Part D claims for 54 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Steven Chen120
  2. Specialty average165

Most prescribed

  1. Estradiol24 claims
  2. Fluocinonide13 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.

Steven Chen among 5,088 obstetrics & gynecology physician records in California

Steven Chen, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

53 obstetrics & gynecology physician records list a practice address in Santa Clara

They are 53 of the 3,436 NPPES records with a practice address in Santa Clara, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Shiva Avari, MDSanta Clara, CA 950511295812121
  2. Neal Frager, MDSanta Clara, CA 950511538246483
  3. Faezeh Ghaffari, MDSanta Clara, CA 950511952488892
  4. Andrea Hutchinson, MDSanta Clara, CA 950511013094945
  5. David Levin, MDSanta Clara, CA 950511881771723
  6. Bernadette Macart, MDSanta Clara, CA 950511144307000
  7. Valerie Maloney, MDSanta Clara, CA 950511386722957
  8. Philip Miller, MDSanta Clara, CA 950511275610123

Common questions

What is Steven Chen, MD's NPI number?

Steven Chen, MD's National Provider Identifier (NPI) is 1245319987, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven Chen, 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 Steven Chen, MD's license?

NPPES lists California license number G78348, 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 Steven Chen, MD prescribe under Medicare Part D?

In 2024, Steven Chen, MD had 120 Medicare Part D claims for 54 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.