Ashley Clare Gamayo, MD, MPH
Hematology (Pathology) Physician · Orange, CA
Ashley Clare Gamayo, MD, MPH is a hematology (pathology) physician with a practice address in Orange, California, and NPI 1992292767, issued on Apr 17, 2018. Check the license (California A176512, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ashley Clare Gamayo
- Credential
- MD, MPH
- Primary taxonomy
- Hematology (Pathology) Physician 207ZH0000X
- License number
- A176512 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 385-2921
- Enumerated
- Apr 17, 2018
- Record last updated
- Nov 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20240115001186); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology (pathology) physician records → All 65 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Ashley Clare Gamayo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A176512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley Clare Gamayo among 65 hematology (pathology) physician records in California
Ashley Clare Gamayo, MD, MPH is one of 65 hematology (pathology) physician records with a practice address in California. 52% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 92% of them.
- NPI issued2018 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 52% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2017 · median 1998 among the 29 with a school on file
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZH0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Pathology) Physician providers in California
There are 65 hematology (pathology) physician records in California.
All 65 in California → Every provider in Orange → Hematology (Pathology) Physician nationwide →
The 8 hematology (pathology) physician records with the nearest ZIP codes
- Genevieve Crane, M.D., PH.D.Orange, CA 928681982833257
- Imran Siddiqi, M.D., PH.D.Orange, CA 928681942473285
- Michael Van Ness, M.D.San Juan Capistrano, CA 926751336450113
- Sing-Tsung Chen, M.D., PH.D.Aliso Viejo, CA 926561508980137
- Vladislav Chizhevsky, M.D.Aliso Viejo, CA 926561952689242
- Anselm Hii, M.D.Aliso Viejo, CA 926561124057393
- Gerald Hanson, M.D.Huntington Beach, CA 926461770545287
- Sally Agersborg, M.D., PH.D.Irvine, CA 926181053505743
Common questions
What is Ashley Clare Gamayo, MD, MPH's NPI number?
Ashley Clare Gamayo, MD, MPH's National Provider Identifier (NPI) is 1992292767, issued on Apr 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Clare Gamayo, MD, MPH located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 385-2921. Providers update this record themselves, so call before visiting.
How can I verify Ashley Clare Gamayo, MD, MPH's license?
NPPES lists California license number A176512, 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. 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.