David N. Greenhaw, M. D.
NPI 1659449361ActiveIndividual· Internal Medicine· Booneville, MS
Internal Medicine (M. D.) in Booneville, Mississippi, licensed in MS, with an NPI issued in December 2006. Part D covered 727 prescriptions written in 2024, 93% of them generic. Janssen Pharmaceuticals, Inc was the largest of 3 companies reporting payments in 2025, $55.58 in all, mostly food and beverage.
Overview
| NPI | 1659449361 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M. D. |
| Sole proprietor | Yes |
| NPI issued | Dec 1, 2006 |
| Last updated in NPPES | Nov 1, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 09533 | MS |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MS) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 727 · 759 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $29,060 |
| Generic share | 93% of claims |
Industry payments (Open Payments)
- 2025$55.58 · 3 payments from 3 companies
- 2024$19.81 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $20.87 | 1 |
| Teva Pharmaceuticals USA, Inc. | $17.70 | 1 |
| Supernus Pharmaceuticals, Inc. | $17.01 | 1 |
What the 2025 payments were for
- Food and Beverage$55.58 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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