Olayinka Olaniyi Akinwumiju, MD
NPI 1831115419ActiveIndividual· Psychiatry & Neurology, Psychiatry· Cordova, TN
Psychiatry & Neurology, Psychiatry (MD) with Healthquest PC, practicing in Cordova, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $803,272 for 5,595 claims, against $135,906 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 2 companies reporting payments in 2025, $34.86 in all, mostly food and beverage. Lists St Francis Hospital as a hospital affiliation.
Overview
| NPI | 1831115419 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 15, 2006 |
| Last updated in NPPES | Oct 3, 2023 |
| Certified by provider | Oct 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 40810 | TN |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 16950 | MS |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (MS); Practitioner - Psychiatry (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 228 |
|---|---|
| Services billed | 2,598 across 12 procedure codes |
| Paid by Medicare | $135,906 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,595 · 7,382 30-day fills |
|---|---|
| Patients | 506 |
| Total drug cost | $803,272 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Psychiatry |
Medical group
- Healthquest PCCordova, TN · 5 clinicians
Hospital affiliation
- St Francis HospitalMemphis, TN
Industry payments (Open Payments)
- 2025$34.86 · 2 payments from 2 companies
- 2024$91.54 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $19.83 | 1 |
| Vanda Pharmaceuticals Inc. | $15.03 | 1 |
What the 2025 payments were for
- Food and Beverage$34.86 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 psychiatrists in Cordova · All psychiatrists in Tennessee