Esteban J. Diaz-Rivera, M.D, P.A
NPI 1932156999ActiveIndividual· Internal Medicine, Nephrology· Hialeah, FL
Internal Medicine, Nephrology (M.D, P.A) in Hialeah, Florida, licensed in FL, with an NPI issued in May 2006. Their prescriptions cost Medicare Part D more than their services did: $164,968 for 1,756 claims, against $81,178 paid for services in 2024. Ardelyx, Inc. was the largest of 4 companies reporting payments in 2025, $141.00 in all, mostly food and beverage. Lists Larkin Community Hospital Palm Springs Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1932156999 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D, P.A |
| Sole proprietor | Yes |
| NPI issued | May 27, 2006 |
| Last updated in NPPES | Aug 16, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | ME66676 | FL |
| Internal Medicine | 207R00000X | ME0066676 | FL |
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 - Internal Medicine (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 590 across 12 procedure codes |
| Paid by Medicare | $81,178 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,756 · 2,704 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $164,968 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
Hospital affiliations
- Larkin Community Hospital Palm Springs CampusHialeah, FL
- Palmetto General HospitalHialeah, FL
Other facilities
- Integra Dialysis CenterDialysis facility · Hialeah, FL
Industry payments (Open Payments)
- 2025$141.00 · 6 payments from 4 companies
- 2024$163.37 · 8 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $47.73 | 2 |
| Otsuka America Pharmaceutical, Inc. | $44.49 | 2 |
| Astrazeneca Pharmaceuticals LP | $27.29 | 1 |
| Calliditas Therapeutics US Inc. | $21.49 | 1 |
What the 2025 payments were for
- Food and Beverage$141.00 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 nephrologists in Hialeah · All nephrologists in Florida