Jason W. Hammack, M.D.
NPI 1699725838ActiveIndividual· Specialist· Sherwood, AR
Specialist (M.D.) in Sherwood, Arkansas, trained at University of Arkansas College of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $353,160 for 336 claims, against $106,349 paid for services in 2024. Abbvie Inc. reported $55.27 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1699725838 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 10, 2006 |
| Last updated in NPPES | Jul 28, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | E-4771 | AR |
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 - Infectious Disease (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 202 |
|---|---|
| Services billed | 1,504 across 9 procedure codes |
| Paid by Medicare | $106,349 |
Part D prescriptions in 2024
| Prescriptions (claims) | 336 · 373 30-day fills |
|---|---|
| Patients | 91 |
| Total drug cost | $353,160 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Infectious Disease |
Hospital affiliations
- Baptist Health Medical Center North Little RockNorth Little Rock, AR
- Baptist Health Medical Center-Little RockLittle Rock, AR
Industry payments (Open Payments)
- 2025$55.27 · 3 payments from 1 company
- 2024$90.86 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $55.27 | 3 |
What the 2025 payments were for
- Food and Beverage$55.27 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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