William A. Knubley, MD
NPI 1346269180ActiveIndividual· Psychiatry & Neurology, Neurology· Fort Smith, AR
Psychiatry & Neurology, Neurology (MD) in Fort Smith, Arkansas, licensed in AR, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $1,318,364 for 4,173 claims, against $40,894 paid for services in 2024. Mdd US Operations, LLC reported $17.34 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1346269180 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Sep 14, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | R-3702 | 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 - Neurology (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 303 |
|---|---|
| Services billed | 1,183 across 19 procedure codes |
| Paid by Medicare | $40,894 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,173 · 5,786 30-day fills |
|---|---|
| Patients | 443 |
| Total drug cost | $1,318,364 |
| Generic share | 85% of claims |
Industry payments (Open Payments)
- 2025$17.34 · 1 payment from 1 company
- 2024$1,628 · 83 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mdd US Operations, LLC | $17.34 | 1 |
What the 2025 payments were for
- Food and Beverage$17.34 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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