Akinwunmi Oni-Orisan, MD
NPI 1831414770ActiveIndividual· Neurological Surgery· Oxnard, CA
Neurological Surgery (MD) in Oxnard, California, trained at Wayne State University School of Medicine (class of 2010). Mostly services rather than prescriptions: Medicare paid $307,740 for 458 patients in 2024, with only 38 Part D claims. Precision Spine, Inc. was the largest of 15 companies reporting payments in 2025, $2,399 in all, mostly food and beverage.
Overview
| NPI | 1831414770 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 4, 2010 |
| Last updated in NPPES | Jan 3, 2025 |
| Certified by provider | Jan 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | A162144 | CA |
| Neurological Surgery | 207T00000X | R1095 | TX |
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 - Neurosurgery (CA); Practitioner - Neurosurgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 458 |
|---|---|
| Services billed | 1,423 across 83 procedure codes |
| Paid by Medicare | $307,740 |
Part D prescriptions in 2024
| Prescriptions (claims) | 38 · 48 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $2,918 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Neurosurgery |
| Secondary specialties | Neurology |
Medical groups
- Link Neuroscience Institute PCOxnard, CA · 16 clinicians
- Link In-Patient Services PCOxnard, CA · 12 clinicians
Hospital affiliations
- Adventist Health Simi ValleySimi Valley, CA
- Community Memorial Hospital - VenturaVentura, CA
- Northridge Hospital Medical CenterNorthridge, CA
- Santa Barbara Cottage HospitalSanta Barbara, CA
- St Johns Regional Medical CenterOxnard, CA
Industry payments (Open Payments)
- 2025$2,399 · 27 payments from 15 companies
- 2024$1,718 · 32 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Precision Spine, Inc. | $1,570 | 10 |
| Siemens Medical Solutions USA, Inc. | $186.11 | 2 |
| Ge Healthcare | $147.26 | 1 |
| Medtronic, Inc. | $110.98 | 1 |
| Biocomposites Inc | $63.18 | 1 |
What the 2025 payments were for
- Food and Beverage$1,625 · 24 payments
- Travel and Lodging$774.07 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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