Jose Santiago-Santiago, MD
NPI 1619071859ActiveIndividual· Internal Medicine, Nephrology· San Juan, PR
Internal Medicine, Nephrology (MD) with San Juan Nephrology PSC, practicing in San Juan, Puerto Rico. Their prescriptions cost Medicare Part D more than their services did: $192,363 for 1,316 claims, against $28,361 paid for services in 2024. Vifor Pharma, Inc. was the largest of 5 companies reporting payments in 2025, $115.16 in all, mostly food and beverage. Lists Auxilio Mutuo Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1619071859 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 8, 2006 |
| Last updated in NPPES | Jul 11, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 14403 | PR |
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 | 116 |
|---|---|
| Services billed | 374 across 7 procedure codes |
| Paid by Medicare | $28,361 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,316 · 1,656 30-day fills |
|---|---|
| Patients | 242 |
| Total drug cost | $192,363 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- San Juan Nephrology PSCSan Juan, PR · 4 clinicians
Hospital affiliations
- Auxilio Mutuo HospitalSan Juan, PR
- Hospital San FranciscoSan Juan, PR
- Metropolitan HospitalSan Juan, PR
- Presbyterian Community HospitalSan Juan, PR
Other facilities
- Fmc Rio PiedrasDialysis facility · Rio Piedras, PR
Industry payments (Open Payments)
- 2025$115.16 · 5 payments from 5 companies
- 2024$25.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vifor Pharma, Inc. | $25.00 | 1 |
| Astrazeneca Pharmaceuticals LP | $25.00 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $24.00 | 1 |
| Scpharmaceuticals Inc. | $20.83 | 1 |
| Bayer Puerto Rico Inc. | $20.33 | 1 |
What the 2025 payments were for
- Food and Beverage$115.16 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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