Onyemaechi Anoruo, MD, MPH, MS
Obstetrics & Gynecology Physician · San Francisco, CA
Onyemaechi Anoruo, MD, MPH, MS is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1679159511, issued on Mar 22, 2021. Check the license (California A196895, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Onyemaechi Anoruo
- Credential
- MD, MPH, MS
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A196895 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1825 4TH St, San Francisco, CA 94143
- Phone
- (415) 353-3400
- Enumerated
- Mar 22, 2021
- Record last updated
- Aug 26, 2025
- Medicare enrollment
- Enrolled (PECOS I20250703002630); may accept Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 1825 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Afsaneh Amouzegar, MDInternal Medicine Physician1609432038
- Yanett Anaya, MDReproductive Endocrinology Physician1215299102
- Cynthia Armour, NPFamily Nurse Practitioner1811023435
- Sonia Badheka, D.O.Obstetrics & Gynecology Physician1013207547
Verify Onyemaechi Anoruo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A196895Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
25 Medicare Part D claims for 11 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
Onyemaechi Anoruo among 5,088 obstetrics & gynecology physician records in California
Onyemaechi Anoruo, MD, MPH, MS 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 2021, is newer than 96% of them.
- NPI issued2021 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2020 · 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
- Sonia Badheka, D.O.San Francisco, CA 941431013207547
- Elizabeth Blumenthal, MDSan Francisco, CA 941431164759916
- Jocelyn ChapmanSan Francisco, CA 941431770810590
- Alissa Erogbogbo, MDSan Francisco, CA 941431629234554
- Erica Johnstone, M.D.San Francisco, CA 941431487773263
- Karen McCune, MDSan Francisco, CA 941431326197633
- Jennifer McNallySan Francisco, CA 941431699054718
- Amy Murtha, M.D.San Francisco, CA 941431013066034
Common questions
What is Onyemaechi Anoruo, MD, MPH, MS's NPI number?
Onyemaechi Anoruo, MD, MPH, MS's National Provider Identifier (NPI) is 1679159511, issued on Mar 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Onyemaechi Anoruo, MD, MPH, MS located?
The NPPES record lists a practice address at 1825 4TH St, San Francisco, CA, 94143. Phone: (415) 353-3400. Providers update this record themselves, so call before visiting.
How can I verify Onyemaechi Anoruo, MD, MPH, MS's license?
NPPES lists California license number A196895, 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 Onyemaechi Anoruo, MD, MPH, MS prescribe under Medicare Part D?
In 2024, Onyemaechi Anoruo, MD, MPH, MS had 25 Medicare Part D claims for 11 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.