Kathryn Fay, MD
Obstetrics & Gynecology Physician · San Francisco, CA
Kathryn Fay, MD is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1033509740, issued on Feb 2, 2015. Check the license (California C204167, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathryn Fay
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- C204167 CA
125.067297 IL
289857 MA
11262240-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 2356 Sutter St, San Francisco, CA 94115
- Phone
- (415) 353-3400
- Enumerated
- Feb 2, 2015
- Record last updated
- Oct 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20251101000395); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2356 Sutter St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Glamarys Acevedo, ASW, IBCLC, MPHClinical Social Worker1720710619
- Amy Autry, MDObstetrics & Gynecology Physician1851335624
- Jaspreet Bahia, MDInternal Medicine Physician1710509773
- Mary Beattie, MD, MASInternal Medicine Physician1922118744
- Nerys Benfield, MDObstetrics & Gynecology Physician1033245972
- Brenda Burney-Jackson, NPNurse Practitioner1497793558
Verify Kathryn Fay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C204167Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
17 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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 2 group practices
- Ucsf Medical Group Business ServicesSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Fay among 5,088 obstetrics & gynecology physician records in California
Kathryn Fay, 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 2015, is newer than 83% of them.
- NPI issued2015 · 83% of these records are older, 15% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2015 · median 2004 among the 2,700 with a school on file
- Record last updated2025 · 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
- Reuben Clay, MDSan Francisco, CA 941151477541092
- Robert Domush, M.D.San Francisco, CA 941151932141454
- Uchechukwu Ezeh, M.D.San Francisco, CA 941151710934310
- Morey Filler, MDSan Francisco, CA 941151437147063
- Victor Fujimoto, M.D.San Francisco, CA 941151598704140
- Cindy Grijalva, MDSan Francisco, CA 941151225028913
- Heather Huddleston, M.D.San Francisco, CA 941151053358598
- Julie Huh, MDSan Francisco, CA 941151225026446
Common questions
What is Kathryn Fay, MD's NPI number?
Kathryn Fay, MD's National Provider Identifier (NPI) is 1033509740, issued on Feb 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Fay, MD located?
The NPPES record lists a practice address at 2356 Sutter St, San Francisco, CA, 94115. Phone: (415) 353-3400. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Fay, MD's license?
NPPES lists California license number C204167, 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 Kathryn Fay, MD prescribe under Medicare Part D?
In 2024, Kathryn Fay, MD had 17 Medicare Part D claims; 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.