Mary Margaret Liaghat, FNP
NPI 1346303583ActiveIndividual· Nurse Practitioner, Family· Rock Hill, SC
Nurse Practitioner, Family (FNP) with Nephrology Associates PA, practicing in Rock Hill, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $596,232 for 2,132 claims, against $15,853 paid for services in 2024. Ardelyx, Inc. was the largest of 3 companies reporting payments in 2025, $293.85 in all, mostly food and beverage. Lists Piedmont Medical Center as a hospital affiliation.
Overview
| NPI | 1346303583 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Dec 19, 2006 |
| Last updated in NPPES | Feb 5, 2026 |
| Certified by provider | Feb 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | F2597 | SC |
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 - Nurse Practitioner (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 57 |
|---|---|
| Services billed | 104 across 10 procedure codes |
| Paid by Medicare | $15,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,132 · 4,606 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $596,232 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Nephrology Associates PARock Hill, SC · 11 clinicians
Hospital affiliation
- Piedmont Medical CenterRock Hill, SC
Industry payments (Open Payments)
- 2025$293.85 · 8 payments from 3 companies
- 2024$87.04 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $160.14 | 3 |
| Calliditas Therapeutics US Inc. | $119.66 | 4 |
| Astrazeneca Pharmaceuticals LP | $14.05 | 1 |
What the 2025 payments were for
- Food and Beverage$293.85 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family nurse practitioners in Rock Hill
- 1104417708
- 1184998742
- 1265518732
- 1295806701
- 1316490733
- 1336510668
- 1376116814
- 1497204119
- 1518328418
- 1528578929
- 1568153708
- 1598764250
All 91 family nurse practitioners in Rock Hill · All family nurse practitioners in South Carolina