Evelyn M. Fonseca Rivera, M.D.
NPI 1659398949ActiveIndividual· Internal Medicine, Hematology & Oncology· Caguas, PR
Internal Medicine, Hematology & Oncology (M.D.) with Advanced Hematology and Oncology of Puerto Rico, practicing in Caguas, Puerto Rico. Their prescriptions cost Medicare Part D more than their services did: $5,693,791 for 1,046 claims, against $24,299 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 34 companies reporting payments in 2025, $2,859 in all, mostly food and beverage. Lists Hospital Menonita Caguas Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1659398949 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 16, 2006 |
| Last updated in NPPES | Jun 8, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 9601 | PR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 16 |
|---|---|
| Services billed | 1,032 across 10 procedure codes |
| Paid by Medicare | $24,299 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,046 · 1,291 30-day fills |
|---|---|
| Patients | 209 |
| Total drug cost | $5,693,791 |
| Generic share | 61% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Advanced Hematology and Oncology of Puerto RicoCaguas, PR · 6 clinicians
Hospital affiliations
- Hospital Menonita Caguas IncCaguas, PR
- Hospital Pavia CaguasCaguas, PR
Industry payments (Open Payments)
- 2025$2,859 · 114 payments from 34 companies
- 2024$3,271 · 133 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $296.30 | 9 |
| Pbg Puerto Rico LLC | $252.96 | 11 |
| Merck Sharp & Dohme LLC | $220.81 | 9 |
| Abbvie Inc. | $187.87 | 8 |
| Astrazeneca Pharmaceuticals LP | $168.08 | 7 |
What the 2025 payments were for
- Food and Beverage$2,859 · 114 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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