Ryan Alexander Zengou, M.D.
NPI 1235395591ActiveIndividual· Neurological Surgery· Tulsa, OK
Neurological Surgery (M.D.) in Tulsa, Oklahoma, trained at University of Connecticut School of Medicine (class of 2006). Medicare paid $48,412 for services to 180 patients in 2024. Gt Medical Technologies, Inc was the largest of 6 companies reporting payments in 2025, $231.38 in all, mostly food and beverage.
Overview
| NPI | 1235395591 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 5, 2008 |
| Last updated in NPPES | Apr 15, 2024 |
| Certified by provider | Apr 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 42346 | OK |
| Neurological Surgery | 207T00000X | 036142030 | IL |
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 - Neurosurgery (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 180 |
|---|---|
| Services billed | 391 across 32 procedure codes |
| Paid by Medicare | $48,412 |
Education and affiliations
| Medical school | University of Connecticut School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Neurosurgery |
Medical group
- Warren Clinic IncTulsa, OK · 883 clinicians
Hospital affiliations
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$231.38 · 7 payments from 6 companies
- 2024$171.74 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gt Medical Technologies, Inc | $65.01 | 1 |
| Medtronic, Inc. | $48.81 | 2 |
| Depuy Synthes Sales Inc. | $40.13 | 1 |
| Cerapedics Inc. | $34.17 | 1 |
| Baxter Healthcare | $23.15 | 1 |
What the 2025 payments were for
- Food and Beverage$231.38 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 46 neurosurgeons in Tulsa · All neurosurgeons in Oklahoma