Tammy Lynn Howard, APRN
NPI 1093899866ActiveIndividual· Nurse Practitioner, Acute Care· Muskogee, OK
Nurse Practitioner, Acute Care (APRN) with Warren Clinic Inc, practicing in Muskogee, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $173,103 for 1,427 claims, against $59,800 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 8 companies reporting payments in 2025, $289.04 in all, mostly food and beverage. Lists Northeastern Health System and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1093899866 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Oct 25, 2006 |
| Last updated in NPPES | Oct 25, 2023 |
| Certified by provider | Oct 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | R0075759 | OK |
| Nurse Practitioner, Family | 363LF0000X | R0075759 | OK |
| Nurse Practitioner, Gerontology | 363LG0600X | R0075759 | 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 | 717 |
|---|---|
| Services billed | 1,046 across 30 procedure codes |
| Paid by Medicare | $59,800 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,427 · 3,267 30-day fills |
|---|---|
| Patients | 481 |
| Total drug cost | $173,103 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Warren Clinic IncTulsa, OK · 883 clinicians
Hospital affiliations
- Northeastern Health SystemTahlequah, OK
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$289.04 · 14 payments from 8 companies
- 2024$382.51 · 21 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $73.94 | 3 |
| Pfizer Inc. | $57.17 | 3 |
| Philips North America LLC | $49.88 | 2 |
| E.R. Squibb & Sons, L.L.C. | $33.55 | 2 |
| Novo Nordisk Inc | $27.97 | 1 |
What the 2025 payments were for
- Food and Beverage$289.04 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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