Agnieszka Vay, M.D.
Obstetrics & Gynecology Physician · San Leandro, CA
Agnieszka Vay, M.D. is an obstetrics & gynecology physician with a practice address in San Leandro, California, and NPI 1568579415, issued on Aug 24, 2006. Check the license (California A78194, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Agnieszka Vay
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A78194 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Merced St, San Leandro, CA 94577
- Phone
- (510) 454-1000
- Enumerated
- Aug 24, 2006
- Record last updated
- Jan 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20050308000872); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2500 Merced St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Agnieszka Vay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A78194Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
152 Medicare Part D claims for 31 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Dexamethasone32 claims
- Prochlorperazine Maleate23 claims
- Letrozole21 claims
- Ondansetron Hcl16 claims
- Famotidine13 claims
- Zejula12 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.
Bills Medicare through one group practice
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Agnieszka Vay among 5,088 obstetrics & gynecology physician records in California
Agnieszka Vay, 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
- Graduated2000 · median 2004 among the 2,700 with a school on file
- Record last updated2022 · 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 Leandro → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Linda Catherine Degusta, M.D.San Leandro, CA 945771578635397
- Simone Katz, M.D.San Leandro, CA 945771770661522
- Colleen Kavanagh, M.D.San Leandro, CA 945771174608830
- Marie La Cour, M.D.San Leandro, CA 945771144372947
- Jolyn Leung, M.D.San Leandro, CA 945771629372180
- Sarah Mark-Drasin, M.D.San Leandro, CA 945771700957610
- John Polito, M.D.San Leandro, CA 945771952489965
- Robert Rubeshaw, M.D.San Leandro, CA 945771629156484
Common questions
What is Agnieszka Vay, M.D.'s NPI number?
Agnieszka Vay, M.D.'s National Provider Identifier (NPI) is 1568579415, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Agnieszka Vay, M.D. located?
The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.
How can I verify Agnieszka Vay, M.D.'s license?
NPPES lists California license number A78194, 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 Agnieszka Vay, M.D. prescribe under Medicare Part D?
In 2024, Agnieszka Vay, M.D. had 152 Medicare Part D claims for 31 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.