Terri L. Herrian, NP-C
NPI 1790127397ActiveIndividual· Nurse Practitioner, Adult Health· Norman, OK
Nurse Practitioner, Adult Health (NP-C) in Norman, Oklahoma, licensed in OK, with an NPI issued in July 2013. Their prescriptions cost Medicare Part D more than their services did: $1,307,679 for 8,631 claims, against $18,102 paid for services in 2024. Amgen Inc. was the largest of 19 companies reporting payments in 2025, $1,180 in all, mostly food and beverage.
Overview
| NPI | 1790127397 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP-C |
| Sole proprietor | No |
| NPI issued | Jul 24, 2013 |
| Last updated in NPPES | Jul 24, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | 79034 | OK |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 119 |
|---|---|
| Services billed | 295 across 25 procedure codes |
| Paid by Medicare | $18,102 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,631 · 18,099 30-day fills |
|---|---|
| Patients | 461 |
| Total drug cost | $1,307,679 |
| Generic share | 81% of claims |
Industry payments (Open Payments)
- 2025$1,180 · 52 payments from 19 companies
- 2024$1,360 · 73 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $346.42 | 8 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $83.16 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $77.06 | 4 |
| Astrazeneca Pharmaceuticals LP | $75.19 | 4 |
| Viatris Specialty LLC | $62.56 | 3 |
What the 2025 payments were for
- Food and Beverage$1,005 · 51 payments
- Consulting Fee$175.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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