Charles Nicholson Clark, FNP
NPI 1013485713ActiveIndividual· Nurse Practitioner, Family· Kerrville, TX
Nurse Practitioner, Family (FNP) with Peterson Medical Associates, practicing in Kerrville, Texas. Their prescriptions cost Medicare Part D more than their services did: $352,816 for 1,719 claims, against $67,863 paid for services in 2024. Shockwave Medical, Inc was the largest of 12 companies reporting payments in 2025, $1,061 in all, mostly food and beverage. Lists Peterson Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1013485713 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Nov 12, 2018 |
| Last updated in NPPES | Aug 22, 2022 |
| Certified by provider | Aug 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | AP139709 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 611 |
|---|---|
| Services billed | 1,099 across 8 procedure codes |
| Paid by Medicare | $67,863 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,719 · 4,498 30-day fills |
|---|---|
| Patients | 446 |
| Total drug cost | $352,816 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Peterson Medical AssociatesKerrville, TX · 191 clinicians
Hospital affiliation
- Peterson Regional Medical CenterKerrville, TX
Industry payments (Open Payments)
- 2025$1,061 · 39 payments from 12 companies
- 2024$882.21 · 42 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shockwave Medical, Inc | $323.71 | 2 |
| Novartis Pharmaceuticals Corporation | $177.94 | 12 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $120.32 | 6 |
| Surmodics, Inc. | $99.23 | 3 |
| Daiichi Sankyo Inc. | $90.36 | 4 |
What the 2025 payments were for
- Food and Beverage$1,061 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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