Tammy Adams Fox, APRN
NPI 1033690706ActiveIndividual· Nurse Practitioner, Family· Lancaster, SC
Nurse Practitioner, Family (APRN) with Nephrology Associates PA, practicing in Lancaster, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $261,077 for 1,529 claims, against $14,994 paid for services in 2024. Ardelyx, Inc. was the largest of 4 companies reporting payments in 2025, $295.27 in all, mostly food and beverage.
Overview
| NPI | 1033690706 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Aug 22, 2018 |
| 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 | 22166 | 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 | 66 |
|---|---|
| Services billed | 135 across 12 procedure codes |
| Paid by Medicare | $14,994 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,529 · 2,656 30-day fills |
|---|---|
| Patients | 238 |
| Total drug cost | $261,077 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Nephrology Associates PARock Hill, SC · 11 clinicians
Industry payments (Open Payments)
- 2025$295.27 · 7 payments from 4 companies
- 2024$53.28 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $165.27 | 3 |
| Vantive US Healthcare LLC | $50.94 | 1 |
| Travere Therapeutics, Inc. | $47.98 | 2 |
| Calliditas Therapeutics US Inc. | $31.08 | 1 |
What the 2025 payments were for
- Food and Beverage$295.27 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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