Carlos M. Martinez Rivera, MD
NPI 1356330310ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Mayaguez, PR
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Mayaguez, Puerto Rico, trained at Ponce School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $6,434,874 for 42,053 claims, against $11,055 paid for services in 2024. Abbott Laboratories was the largest of 4 companies reporting payments in 2025, $219.65 in all, mostly food and beverage.
Overview
| NPI | 1356330310 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 20, 2005 |
| Last updated in NPPES | May 2, 2023 |
| Certified by provider | May 2, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 12424 | 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 - Endocrinology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 95 |
|---|---|
| Services billed | 230 across 6 procedure codes |
| Paid by Medicare | $11,055 |
Part D prescriptions in 2024
| Prescriptions (claims) | 42,053 · 68,181 30-day fills |
|---|---|
| Patients | 2,144 |
| Total drug cost | $6,434,874 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | Ponce School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
Industry payments (Open Payments)
- 2025$219.65 · 10 payments from 4 companies
- 2024$87.38 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $89.52 | 4 |
| Abbvie Inc. | $55.26 | 2 |
| Dexcom, Inc. | $43.20 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $31.67 | 2 |
What the 2025 payments were for
- Food and Beverage$219.65 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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