Keith Alan Ison, MD
NPI 1497711279ActiveIndividual· Internal Medicine· Russellville, AR
Internal Medicine (MD) in Russellville, Arkansas, trained at University of Arkansas College of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $422,084 for 8,899 claims, against $198,927 paid for services in 2024. Novo Nordisk Inc was the largest of 3 companies reporting payments in 2025, $68.55 in all, mostly food and beverage.
Overview
| NPI | 1497711279 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 21, 2006 |
| Last updated in NPPES | Feb 18, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | E-4015 | 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 - Internal Medicine (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 631 |
|---|---|
| Services billed | 7,493 across 139 procedure codes |
| Paid by Medicare | $198,927 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,899 · 17,442 30-day fills |
|---|---|
| Patients | 434 |
| Total drug cost | $422,084 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
Medical group
- St Marys Physician Services LLCRussellville, AR · 49 clinicians
Hospital affiliation
- St Marys Regional Medical CenterRussellville, AR
Other facilities
- Care IV Home HealthHome health agency · Russellville, AR
- Centerwell Home HealthHome health agency · Russellville, AR
- Chi St Vincent Health at HomeHome health agency · Morrilton, AR
- Trinity River Valley Home HealthHome health agency · Russellville, AR
Industry payments (Open Payments)
- 2025$68.55 · 4 payments from 3 companies
- 2024$16.55 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $36.71 | 2 |
| Lilly USA, LLC | $16.46 | 1 |
| Dexcom, Inc. | $15.38 | 1 |
What the 2025 payments were for
- Food and Beverage$68.55 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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