Diane Ruth Keahey, DNP APRN FNP-BC
NPI 1912013988ActiveIndividual· Nurse Practitioner, Family· Sherman, TX
Nurse Practitioner, Family (DNP APRN FNP-BC) with Highland Primary Care, LLC and 1 other group, practicing in Sherman, Texas. Their prescriptions cost Medicare Part D more than their services did: $731,657 for 7,126 claims, against $36,553 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 11 companies reporting payments in 2025, $306.17 in all, mostly food and beverage. Lists Texoma Medical Center as a hospital affiliation.
Overview
| NPI | 1912013988 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP APRN FNP-BC |
| Sole proprietor | No |
| NPI issued | Aug 22, 2006 |
| Last updated in NPPES | Apr 28, 2026 |
| Certified by provider | Apr 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | AP112321 | TX |
| Nurse Practitioner, Family | 363LF0000X | 225881 | 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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 1,455 across 40 procedure codes |
| Paid by Medicare | $36,553 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,126 · 13,074 30-day fills |
|---|---|
| Patients | 313 |
| Total drug cost | $731,657 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Highland Primary Care, LLCSherman, TX · 3 clinicians
- Heritage Parkway Medical PLLCCarrollton, TX · 3 clinicians
Hospital affiliation
- Texoma Medical CenterDenison, TX
Other facilities
- Guardian HealthcareHome health agency · Paris, TX
Industry payments (Open Payments)
- 2025$306.17 · 16 payments from 11 companies
- 2024$641.75 · 33 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $65.89 | 3 |
| Pfizer Inc. | $42.67 | 2 |
| Astrazeneca Pharmaceuticals LP | $31.65 | 2 |
| Insulet Corporation | $26.31 | 1 |
| Mayne Pharma Commercial LLC | $26.10 | 2 |
What the 2025 payments were for
- Food and Beverage$306.17 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 family nurse practitioners in Sherman · All family nurse practitioners in Texas