Willis Holloway Jr., M.D.
NPI 1023054434ActiveIndividual· Psychiatry & Neurology, Psychiatry· Oklahoma City, OK
Psychiatry & Neurology, Psychiatry (M.D.) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $247,791 for 1,367 claims, against $4,545 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 12 companies reporting payments in 2025, $730.48 in all, mostly food and beverage.
Overview
| NPI | 1023054434 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 15256 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 81 |
|---|---|
| Services billed | 135 across 6 procedure codes |
| Paid by Medicare | $4,545 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,367 · 1,572 30-day fills |
|---|---|
| Patients | 151 |
| Total drug cost | $247,791 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Holloway Group IncOklahoma City, OK · 6 clinicians
Industry payments (Open Payments)
- 2025$730.48 · 38 payments from 12 companies
- 2024$495.06 · 22 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $215.56 | 13 |
| Alkermes, Inc. | $101.34 | 4 |
| Otsuka America Pharmaceutical, Inc. | $97.68 | 5 |
| Lundbeck LLC | $71.69 | 3 |
| Teva Pharmaceuticals USA, Inc. | $68.12 | 4 |
What the 2025 payments were for
- Food and Beverage$730.48 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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