Maria Jose Zabala Ramirez, M.D.
NPI 1245728740ActiveIndividual· Internal Medicine, Nephrology· Chapel Hill, NC
Internal Medicine, Nephrology (M.D.) in Chapel Hill, North Carolina, trained at North Carolina Medical School (class of 2023). Their prescriptions cost Medicare Part D more than their services did: $142,975 for 977 claims, against $54,486 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 11 companies reporting payments in 2025, $594.70 in all, mostly food and beverage.
Overview
| NPI | 1245728740 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 30, 2018 |
| Last updated in NPPES | Nov 14, 2023 |
| Certified by provider | Nov 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2023-01385 | NC |
| Internal Medicine | 207R00000X | 125072418 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 178 |
|---|---|
| Services billed | 717 across 25 procedure codes |
| Paid by Medicare | $54,486 |
Part D prescriptions in 2024
| Prescriptions (claims) | 977 · 2,030 30-day fills |
|---|---|
| Patients | 223 |
| Total drug cost | $142,975 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | North Carolina Medical School |
|---|---|
| Graduation year | 2023 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical groups
- University of North Carolina at Chapel HillChapel Hill, NC · 2,052 clinicians
- Unc Physicians Network LLCKinston, NC · 998 clinicians
Hospital affiliations
- Central Carolina HospitalSanford, NC
- Unc HospitalsChapel Hill, NC
Industry payments (Open Payments)
- 2025$594.70 · 27 payments from 11 companies
- 2024$453.46 · 17 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $115.66 | 4 |
| Otsuka America Pharmaceutical, Inc. | $78.34 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $68.68 | 4 |
| Amgen Inc. | $68.28 | 3 |
| Ardelyx, Inc. | $56.98 | 3 |
What the 2025 payments were for
- Food and Beverage$594.70 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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