Nivia Esther Cruz-Ortiz, M.D.
NPI 1447363130ActiveIndividual· Internal Medicine, Nephrology· San Juan, PR
Internal Medicine, Nephrology (M.D.) in San Juan, Puerto Rico, trained at University of Puerto Rico School of Medicine (class of 1974). Their prescriptions cost Medicare Part D more than their services did: $228,864 for 2,462 claims, against $18,119 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 4 companies reporting payments in 2025, $317.16 in all, mostly food and beverage.
Overview
| NPI | 1447363130 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 16, 2006 |
| Last updated in NPPES | Oct 21, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 4705 | 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 | 52 |
|---|---|
| Services billed | 172 across 11 procedure codes |
| Paid by Medicare | $18,119 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,462 · 3,272 30-day fills |
|---|---|
| Patients | 225 |
| Total drug cost | $228,864 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1974 |
| Medicare specialty | Nephrology |
Medical group
- Hospital Espanol Auxilio Mutuo de Puerto Rico, Inc.San Juan, PR · 54 clinicians
Hospital affiliation
- Auxilio Mutuo HospitalSan Juan, PR
Industry payments (Open Payments)
- 2025$317.16 · 4 payments from 4 companies
- 2024$138.81 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $132.35 | 1 |
| Glaxosmithkline, LLC. | $111.69 | 1 |
| Astrazeneca Pharmaceuticals LP | $49.97 | 1 |
| Vifor Pharma, Inc. | $23.15 | 1 |
What the 2025 payments were for
- Food and Beverage$317.16 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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