Ashley Gamayo, MD, MPH
NPI 1992292767 · Hematology (Pathology) Physician · Orange, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashley Gamayo, MD, MPH is a Hematology (Pathology) Physician provider in Orange, CA (NPI 1992292767).
Provider details
- NPI number
- 1992292767
- Entity type
- Individual
- Primary specialty
- Hematology (Pathology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A176512 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,163 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 716 | $29 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 347 | $12 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 224 | $38 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 16 Or More Markers88189 | 219 | $86 |
| Microscopic Genetic Analysis of Tissue, Manual, Each Additional Multiplex Stain Procedure88377 | 149 | $65 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 129 | $36 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-17
- Last updated
- 2023-11-09
- Certified
- 2023-11-09
Frequently asked questions
- What is Ashley Gamayo's NPI number?
- Ashley Gamayo's National Provider Identifier (NPI) is 1992292767, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashley Gamayo's specialty?
- Ashley Gamayo is listed in the NPPES registry with a primary specialty of Hematology (Pathology) Physician (Allopathic & Osteopathic Physicians).
- Where is Ashley Gamayo located?
- Ashley Gamayo's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Ashley Gamayo's phone number?
- The practice phone number listed in the NPPES registry for Ashley Gamayo is (714) 385-2921.
- Does Ashley Gamayo accept Medicare?
- Ashley Gamayo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashley Gamayo's NPI active?
- Yes — Ashley Gamayo's NPI (1992292767) is active in the NPPES registry as of the last update on 2023-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.