Tracy S. Seo, MD
Obstetrics & Gynecology Physician · Richmond, CA
Tracy S. Seo, MD is an obstetrics & gynecology physician with a practice address in Richmond, California, and NPI 1154406825, issued on Oct 25, 2006. Check the license (California A77512, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tracy S. Seo
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A77512 CA
Self-reported in NPPES; status is on the state search - Practice location
- 901 Nevin Ave, Richmond, CA 94801
- Phone
- (510) 307-1500
- Enumerated
- Oct 25, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A775120 CA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 901 Nevin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susana Acevedo, MDPediatrics Physician1801971569
- Mankaah AchoPediatrics Physician1225779721
- Mary Ackerman, NPAdult Health Nurse Practitioner1154406155
- Kian AdabiNeurology Physician1528626710
- Samina Agha, MDHospitalist Physician1548345200
- Jessica Alfonso, RRTRegistered Respiratory Therapist1295507598
Verify Tracy S. Seo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A77512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
37 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol11 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.
Tracy S. Seo among 5,088 obstetrics & gynecology physician records in California
Tracy S. Seo, 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).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Richmond → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Erica Canales, MDRichmond, CA 948011154381234
- Tracy Flanagan, MDRichmond, CA 948011538244298
- Renee Fogelberg, MDRichmond, CA 948011336224005
- Rachel Hartshorn, MDRichmond, CA 948011609971746
- Betty Lin, MDRichmond, CA 948011134204803
- Nora Salvador, MDRichmond, CA 948011972688646
- Nancy Solh, M.D.Richmond, CA 948011982861951
- Barbara Thompson, MDRichmond, CA 948011871678532
Common questions
What is Tracy S. Seo, MD's NPI number?
Tracy S. Seo, MD's National Provider Identifier (NPI) is 1154406825, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tracy S. Seo, MD located?
The NPPES record lists a practice address at 901 Nevin Ave, Richmond, CA, 94801. Phone: (510) 307-1500. Providers update this record themselves, so call before visiting.
How can I verify Tracy S. Seo, MD's license?
NPPES lists California license number A77512, 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 Tracy S. Seo, MD prescribe under Medicare Part D?
In 2024, Tracy S. Seo, MD had 37 Medicare Part D claims for 22 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.