Gabriel Rivera, M.D.
NPI 1295961480 · Hematology & Oncology Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gabriel Rivera, M.D. is a Hematology & Oncology Physician provider in Fresno, CA (NPI 1295961480).
Provider details
- NPI number
- 1295961480
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A121128 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 116 | 51 |
| Dexamethasone | 88 | 36 |
| Ondansetron Hcl | 60 | 37 |
| Prednisone | 53 | 28 |
| Prochlorperazine Maleate | 52 | 36 |
| Palbociclibbrand: Ibrance | 50 | — |
| Abiraterone Acetate | 43 | 18 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-02
- Last updated
- 2023-03-29
- Certified
- 2023-03-29
Frequently asked questions
- What is Gabriel Rivera's NPI number?
- Gabriel Rivera's National Provider Identifier (NPI) is 1295961480, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gabriel Rivera's specialty?
- Gabriel Rivera is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gabriel Rivera located?
- Gabriel Rivera's practice location on file with NPPES is 7300 N Fresno St, Fresno, CA 93720-2941.
- What is Gabriel Rivera's phone number?
- The practice phone number listed in the NPPES registry for Gabriel Rivera is (559) 448-4500.
- Does Gabriel Rivera accept Medicare?
- Gabriel Rivera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gabriel Rivera's NPI active?
- Yes — Gabriel Rivera's NPI (1295961480) is active in the NPPES registry as of the last update on 2023-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.