Arnaldo M. Nieves Ramirez, M.D.
NPI 1902866437ActiveIndividual· Internal Medicine, Gastroenterology· Ponce, PR
Internal Medicine, Gastroenterology (M.D.) in Ponce, Puerto Rico, trained at University Central del Caribe Escuela de Medicina (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $548,930 for 2,225 claims, against $8,168 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $355.68 in all, mostly food and beverage.
Overview
| NPI | 1902866437 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 27, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 12225 | 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 - Gastroenterology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 74 across 10 procedure codes |
| Paid by Medicare | $8,168 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,225 · 2,337 30-day fills |
|---|---|
| Patients | 954 |
| Total drug cost | $548,930 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | University Central del Caribe Escuela de Medicina |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Gastroenterology |
Industry payments (Open Payments)
- 2025$355.68 · 9 payments from 3 companies
- 2024$614.39 · 14 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $206.76 | 7 |
| Madrigal Pharmaceuticals | $129.24 | 1 |
| Olympus Latin America, Inc. | $19.68 | 1 |
What the 2025 payments were for
- Food and Beverage$355.68 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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