Ayah Hamza, DO
Pediatrics Physician · Napa, CA
Ayah Hamza, DO is a pediatrics physician with a practice address in Napa, California, and NPI 1528631892, issued on Jul 23, 2021. Check the license (California 23444, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ayah Hamza
- Credential
- DO
- Primary taxonomy
- Pediatrics Physician 208000000X
- License numbers
- 23444 CA
V2094 TX
Self-reported in NPPES; status is on the state search - Practice location
- 300 Hartle CT, Napa, CA 94559
- Phone
- (707) 254-1775
- Enumerated
- Jul 23, 2021
- Record last updated
- Jan 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20260209001059); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 300 Hartle CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Denisse AlemanSocial Worker1063908226
- Ana Barrios LopezClinical Social Worker1396362984
- Peta Gay Bezek, FNP-BCFamily Nurse Practitioner1396281911
- Heidi Biegel, CNMAdvanced Practice Midwife1558366054
- Jamie Bongiovi, LCSWSocial Worker1013071067
Verify Ayah Hamza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 23444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ayah Hamza among 9,272 pediatrics physician records in California
Ayah Hamza, DO is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 4% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated2021 · median 2012 among the 754 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in Napa → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Faraaz Chekeni, MD, PHDNapa, CA 945591104183904
- Veronica Klammer, D.O.Napa, CA 945591821356197
- Christine Loffler Barry, MDNapa, CA 945591033282223
- Victoria Morgese, MDNapa, CA 945591366512592
- Tessa Wyborny, M.D.Napa, CA 945591437410966
- Allison Crisp, D.O., M.P.H.Napa, CA 945581710399118
- Laura Debrot Marcano, M.DNapa, CA 945581629221346
- Donna Dolislager, MDNapa, CA 945581780736918
Common questions
What is Ayah Hamza, DO's NPI number?
Ayah Hamza, DO's National Provider Identifier (NPI) is 1528631892, issued on Jul 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ayah Hamza, DO located?
The NPPES record lists a practice address at 300 Hartle CT, Napa, CA, 94559. Phone: (707) 254-1775. Providers update this record themselves, so call before visiting.
How can I verify Ayah Hamza, DO's license?
NPPES lists California license number 23444, 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.