Angel F. Delgado Garrastegui, M.D.
NPI 1245644061ActiveIndividual· Internal Medicine, Nephrology· Toa Baja, PR
Internal Medicine, Nephrology (M.D.) with Nefrologos Asociados del Norte LLC, practicing in Toa Baja, Puerto Rico. Their prescriptions cost Medicare Part D more than their services did: $424,669 for 2,414 claims, against $6,278 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $610.67 in all, mostly food and beverage. Lists Doctors' Center Hospital, Inc and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1245644061 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 19, 2014 |
| Last updated in NPPES | Oct 14, 2021 |
| Certified by provider | Oct 14, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A161438 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 87 across 9 procedure codes |
| Paid by Medicare | $6,278 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,414 · 2,688 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $424,669 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Nefrologos Asociados del Norte LLCArecibo, PR · 3 clinicians
Hospital affiliations
- Doctors' Center Hospital, IncManati, PR
- Hospital Metropolitano Dr SusoniArecibo, PR
- Hospital Pavia AreciboArecibo, PR
Other facilities
- Fmc AreciboDialysis facility · Arecibo, PR
- Fmc Arecibo NorteDialysis facility · Arecibo, PR
Industry payments (Open Payments)
- 2025$610.67 · 16 payments from 7 companies
- 2024$344.91 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $178.75 | 6 |
| Glaxosmithkline, LLC. | $111.69 | 1 |
| Vifor Pharma, Inc. | $101.16 | 4 |
| Apellis Pharmaceuticals, Inc. | $86.18 | 1 |
| Lilly USA, LLC | $78.38 | 2 |
What the 2025 payments were for
- Food and Beverage$610.67 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Toa Baja
- 1790133718
- 1942614599