Evelyn Fonseca Rivera, M.D.
NPI 1659398949 · Hematology & Oncology Physician · Caguas, PR
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Evelyn Fonseca Rivera, M.D. is a Hematology & Oncology Physician provider in Caguas, PR (NPI 1659398949).
Provider details
- NPI number
- 1659398949
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 9601 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lenalidomidebrand: Revlimid | 67 | 13 |
| Hydroxyurea | 62 | 16 |
| Dexamethasone | 58 | 26 |
| Gabapentin | 54 | 21 |
| Anastrozole | 54 | 23 |
| Everolimus | 38 | — |
| Apixabanbrand: Eliquis | 31 | 12 |
| Epoetin Alfa-Epbx |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,271 across 133 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-16
- Last updated
- 2018-06-08
Frequently asked questions
- What is Evelyn Fonseca Rivera's NPI number?
- Evelyn Fonseca Rivera's National Provider Identifier (NPI) is 1659398949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Evelyn Fonseca Rivera's specialty?
- Evelyn Fonseca Rivera is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Evelyn Fonseca Rivera located?
- Evelyn Fonseca Rivera's practice location on file with NPPES is Hospital Hima Caguas Piso G Avenida Luis Munoz Marin, Caguas, PR 00725.
- What is Evelyn Fonseca Rivera's phone number?
- The practice phone number listed in the NPPES registry for Evelyn Fonseca Rivera is (787) 744-8686.
- Does Evelyn Fonseca Rivera accept Medicare?
- Evelyn Fonseca Rivera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Evelyn Fonseca Rivera's NPI active?
- Yes — Evelyn Fonseca Rivera's NPI (1659398949) is active in the NPPES registry as of the last update on 2018-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.