Marc Sapir, MD
Family Medicine Physician · Hayward, CA
Marc Sapir, MD is a family medicine physician with a practice address in Hayward, California, and NPI 1750429569, issued on Feb 2, 2007. Check the license (California G21595, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marc Sapir
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G21595 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24100 Amador St, Hayward, CA 94544
- Phone
- (510) 266-1725
- Enumerated
- Feb 2, 2007
- Record last updated
- Oct 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
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Verify Marc Sapir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G21595Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marc Sapir among 17,133 family medicine physician records in California
Marc Sapir, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in Hayward → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joseph Ippolito, M.D.Hayward, CA 945441033359641
- Rolando Atienza, MDHayward, CA 945451861598435
- Jade Bito-Onon, D.O.Hayward, CA 945451275913089
- Raul Gentini, MDHayward, CA 945451942496617
- Veena Gowra, M.D.Hayward, CA 945451518115906
- Hasina Nasir, M.D.Hayward, CA 945451982619334
- Uma Natarajan, M.D.Hayward, CA 945451417987025
- Maiti Rodriguez, M.D.Hayward, CA 945451700263159
Common questions
What is Marc Sapir, MD's NPI number?
Marc Sapir, MD's National Provider Identifier (NPI) is 1750429569, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marc Sapir, MD located?
The NPPES record lists a practice address at 24100 Amador St, Hayward, CA, 94544. Phone: (510) 266-1725. Providers update this record themselves, so call before visiting.
How can I verify Marc Sapir, MD's license?
NPPES lists California license number G21595, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.