Lee-May Chen, MD
Gynecologic Oncology Physician · San Francisco, CA
Lee-May Chen, MD is a gynecologic oncology physician with a practice address in San Francisco, California, and NPI 1902861883, issued on Apr 20, 2006. Check the license (California G83192, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lee-May Chen
- Credential
- MD
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License number
- G83192 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Divisadero St, San Francisco, CA 94143
- Phone
- (415) 353-9600
- Enumerated
- Apr 20, 2006
- Record last updated
- Sep 10, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (415) 353-7657
- Medicaid ID
- 00G831920 CA
- Medicare enrollment
- Enrolled (PECOS I20080229000579); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 176 in California → Look up another NPI →
Also registered at 1600 Divisadero St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David AlfonRegistered Nurse1558106336
- Christian Apfel, MD, PHDAnesthesiology Physician1578651105
- Fady BekheetPharmacist1780223131
- Fletcher Bell, MDInternal Medicine Physician1811647514
- Lauren Boreta, M.D.Radiation Oncology Physician1679990071
- Ronald Braun, M.D.Anesthesiology Physician1700865367
Verify Lee-May Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G83192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024
137 Medicare Part D claims for 43 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Hcl20 claims
- Dexamethasone16 claims
- Prochlorperazine Maleate15 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $267.28
5 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 1,199 providers of this specialty with any payment received $6,387.20 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 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).
Lee-May Chen among 176 gynecologic oncology physician records in California
Lee-May Chen, MD is one of 176 gynecologic oncology physician records with a practice address in California. 86% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1992 · median 2004 among the 131 with a school on file
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecologic Oncology Physician providers in California
There are 176 gynecologic oncology physician records in California.
All 176 in California → Every provider in San Francisco → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- Stephanie Cham, M.D.San Francisco, CA 941431033597117
- Katherine Fuh, MDSan Francisco, CA 941431740462316
- Andrea Nanez, M.D.San Francisco, CA 941431952837098
- Catherine Powell, MDSan Francisco, CA 941431306995287
- Jenta Shen, M.D.San Francisco, CA 941171881692002
- Lisa Sandles, MDSan Francisco, CA 941151932287562
- Stefanie Ueda, M.D.San Francisco, CA 941151780748087
- John Chan, MDSan Francisco, CA 941091962596551
Common questions
What is Lee-May Chen, MD's NPI number?
Lee-May Chen, MD's National Provider Identifier (NPI) is 1902861883, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lee-May Chen, MD located?
The NPPES record lists a practice address at 1600 Divisadero St, San Francisco, CA, 94143. Phone: (415) 353-9600. Providers update this record themselves, so call before visiting.
How can I verify Lee-May Chen, MD's license?
NPPES lists California license number G83192, 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 Lee-May Chen, MD prescribe under Medicare Part D?
In 2024, Lee-May Chen, MD had 137 Medicare Part D claims for 43 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.
What is Lee-May Chen, MD's MIPS final score?
The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.