Geraldine Shirzai, MD
Gynecology Physician · Walnut Creek, CA
Geraldine Shirzai, MD is a gynecology physician with a practice address in Walnut Creek, California, and NPI 1609404284, issued on Mar 30, 2020. Check the license (California A198790, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Geraldine Shirzai
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- A198790 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1515 Newell Ave, Walnut Creek, CA 94596
- Phone
- (925) 737-3798
- Enumerated
- Mar 30, 2020
- Record last updated
- Sep 27, 2024
- Medicare enrollment
- Enrolled (PECOS I20241004001095); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 369 in California → Look up another NPI →
Also registered at 1515 Newell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie Chang, D.O.Internal Medicine Physician1205018561
- Whitney Dewalt, M.D.Obstetrics & Gynecology Physician1720382286
- Hannelore Harwood, NPWomen's Health Nurse Practitioner1063599272
- Andrew Lin, M.D.Nephrology Physician1558484857
- Serena LinObstetrics & Gynecology Physician1366650889
- Jonathan Nguyen, M.D.Internal Medicine Physician1922549138
Verify Geraldine Shirzai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A198790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average gynecology physician in 2024
60 Medicare Part D claims for 27 beneficiaries, against an average of 299 among the 1,919 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 one group practice
- Permanente Medical Group IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geraldine Shirzai among 369 gynecology physician records in California
Geraldine Shirzai, MD is one of 369 gynecology physician records with a practice address in California. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 98% of them.
- NPI issued2020 · 98% of these records are older, 2% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2020 · median 1995 among the 141 with a school on file
- Record last updated2024 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in California
There are 369 gynecology physician records in California.
All 369 in California → Every provider in Walnut Creek → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Rose Monardo, M.D.Walnut Creek, CA 945971407142250
- Babak Edraki, MDWalnut Creek, CA 945981942249388
- Olga Rotermund, NURSEWalnut Creek, CA 945981164179586
- Rebecca Falik, M.D.Oakland, CA 946021942576657
- Paul Wright, M.D.Oakland, CA 946071942225362
- Hon Fong, MDOakland, CA 946091033174974
- Albertine Omani, M.D.Oakland, CA 946091861552606
- Mara Greenberg, MDOakland, CA 946111104994177
Common questions
What is Geraldine Shirzai, MD's NPI number?
Geraldine Shirzai, MD's National Provider Identifier (NPI) is 1609404284, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Geraldine Shirzai, MD located?
The NPPES record lists a practice address at 1515 Newell Ave, Walnut Creek, CA, 94596. Phone: (925) 737-3798. Providers update this record themselves, so call before visiting.
How can I verify Geraldine Shirzai, MD's license?
NPPES lists California license number A198790, 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 Geraldine Shirzai, MD prescribe under Medicare Part D?
In 2024, Geraldine Shirzai, MD had 60 Medicare Part D claims for 27 beneficiaries; the average among gynecology physician prescribers was 299. 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.