Yuan-Da Fan, M.D.
Obstetrics & Gynecology Physician · San Francisco, CA
Yuan-Da Fan, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1609941798, issued on Nov 22, 2006. Check the license (California A43417, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yuan-Da Fan
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A43417 CA
Self-reported in NPPES; status is on the state search - Practice location
- 490 Post St, San Francisco, CA 94102
- Phone
- (415) 781-5300
- Enumerated
- Nov 22, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 781-5406
- Medicare enrollment
- Enrolled (PECOS I20040224001185); may accept Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1985
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 490 Post St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Yuan-Da Fan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A43417Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
42 Medicare Part D claims for 17 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of 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: $18.66
2 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North East Medical ServicesSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yuan-Da Fan among 5,088 obstetrics & gynecology physician records in California
Yuan-Da Fan, 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
- Graduated1985 · 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
- Darragh Flynn, M.D.San Francisco, CA 941021831201169
- Thomas Madland, M.D.San Francisco, CA 941021376618496
- Sudhi Trye, M.D.San Francisco, CA 941031093057002
- Victoria StenmarkSan Francisco, CA 941071851658413
- Wing Lee, MDSan Francisco, CA 941081396730149
- Eric Tabas, M.D.San Francisco, CA 941081194744722
- Karen Tuan, M.D.San Francisco, CA 941081669441358
- Ke Tuan, M.D.San Francisco, CA 941081104873520
Common questions
What is Yuan-Da Fan, M.D.'s NPI number?
Yuan-Da Fan, M.D.'s National Provider Identifier (NPI) is 1609941798, issued on Nov 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Yuan-Da Fan, M.D. located?
The NPPES record lists a practice address at 490 Post St, San Francisco, CA, 94102. Phone: (415) 781-5300. Providers update this record themselves, so call before visiting.
How can I verify Yuan-Da Fan, M.D.'s license?
NPPES lists California license number A43417, 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 Yuan-Da Fan, M.D. prescribe under Medicare Part D?
In 2024, Yuan-Da Fan, M.D. had 42 Medicare Part D claims for 17 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.