NPPES file of Aug 9, 2026

Audrey S. Koh, M.D.

Obstetrics & Gynecology Physician · San Francisco, CA

Audrey S. Koh, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1982781472, issued on Nov 1, 2006. Check the license (California G45852, 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
1982781472
Name
Audrey S. Koh
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G45852 CA
Self-reported in NPPES; status is on the state search
Practice location
2100 Webster St, San Francisco, CA 94115
Phone
(415) 923-3128
Enumerated
Nov 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(415) 885-5981
Medicare enrollment
Enrolled (PECOS I20090713000007); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1980
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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8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 2100 Webster St

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

  1. Arthur Allen, MDOphthalmology Physician1255332334
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  3. Peter Anastassiou, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1912904806
  4. William Andereck, M.D.Internal Medicine Physician1699800219
  5. Jennifer Austin, LCSWClinical Social Worker1669878492
  6. Amy Baertson, R.DRegistered Dietitian1598914202

Verify Audrey S. Koh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G45852    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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23% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

203 Medicare Part D claims for 61 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Audrey Koh203
  2. Specialty average165

Most prescribed

  1. Estradiol90 claims
  2. Clobetasol Propionate17 claims
  3. Valacyclovir17 claims
  4. Estring16 claims
  5. Yuvafem13 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.

Industry payments in 2024: $159.22

2 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Audrey Koh$159.22
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Audrey S. Koh among 5,088 obstetrics & gynecology physician records in California

Audrey S. Koh, M.D. 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 fileYes · 53% of these records are
  • Graduated1980 · median 2004 among the 2,700 with a school on file
  • Record last updated2007 · 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).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

All 5,088 in California → Every provider in San Francisco → Obstetrics & Gynecology Physician nationwide →

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

  1. Reuben Clay, MDSan Francisco, CA 941151477541092
  2. Robert Domush, M.D.San Francisco, CA 941151932141454
  3. Uchechukwu Ezeh, M.D.San Francisco, CA 941151710934310
  4. Morey Filler, MDSan Francisco, CA 941151437147063
  5. Victor Fujimoto, M.D.San Francisco, CA 941151598704140
  6. Cindy Grijalva, MDSan Francisco, CA 941151225028913
  7. Heather Huddleston, M.D.San Francisco, CA 941151053358598
  8. Julie Huh, MDSan Francisco, CA 941151225026446

Common questions

What is Audrey S. Koh, M.D.'s NPI number?

Audrey S. Koh, M.D.'s National Provider Identifier (NPI) is 1982781472, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Audrey S. Koh, M.D. located?

The NPPES record lists a practice address at 2100 Webster St, San Francisco, CA, 94115. Phone: (415) 923-3128. Providers update this record themselves, so call before visiting.

How can I verify Audrey S. Koh, M.D.'s license?

NPPES lists California license number G45852, 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 Audrey S. Koh, M.D. prescribe under Medicare Part D?

In 2024, Audrey S. Koh, M.D. had 203 Medicare Part D claims for 61 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.