Michael Thambuswamy, MD
NPI 1134369556ActiveIndividual· Neurological Surgery· Tulsa, OK
Neurological Surgery (MD) in Tulsa, Oklahoma, trained at University of Oklahoma College of Medicine (class of 2006). 185 Medicare patients in 2024, $265,719 paid; nearly all of their 820 Part D prescriptions were generic (96%). Zsfab, Inc. was the largest of 9 companies reporting payments in 2025, $13,538 in all, mostly consulting fees.
Overview
| NPI | 1134369556 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 25, 2009 |
| Last updated in NPPES | Jan 24, 2020 |
| Certified by provider | Jan 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 31253 | OK |
| Student in an Organized Health Care Education/Training Program | 390200000X | TRN 12140 | FL |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 185 |
|---|---|
| Services billed | 1,376 across 83 procedure codes |
| Paid by Medicare | $265,719 |
Part D prescriptions in 2024
| Prescriptions (claims) | 820 · 844 30-day fills |
|---|---|
| Patients | 168 |
| Total drug cost | $67,883 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical group
- Oklahoma Spine and Brain Institute LLPTulsa, OK · 4 clinicians
Hospital affiliations
- Ascension St John Broken ArrowBroken Arrow, OK
- Hillcrest Hospital SouthTulsa, OK
- Hillcrest Medical CenterTulsa, OK
- Mercy Hospital Fort SmithFort Smith, AR
- Tulsa Spine & Specialty HospitalTulsa, OK
Industry payments (Open Payments)
- 2025$13,538 · 53 payments from 9 companies
- 2024$33,115 · 80 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zsfab, Inc. | $11,451 | 22 |
| Medtronic, Inc. | $964.49 | 17 |
| Cerapedics Inc. | $593.53 | 4 |
| Si-Bone, Inc. | $345.74 | 5 |
| Longeviti Neuro Solutions Inc | $95.25 | 1 |
What the 2025 payments were for
- Consulting Fee$10,000 · 10 payments
- Food and Beverage$3,538 · 43 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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