Theresa Lynn Williamson, MD
NPI 1194143644ActiveIndividual· Neurological Surgery· Providence, RI
Neurological Surgery (MD) in Providence, Rhode Island, trained at Yale University School of Medicine (class of 2014). Mostly services rather than prescriptions: Medicare paid $127,243 for 147 patients in 2024, with only 14 Part D claims. Globus Medical, Inc. was the largest of 5 companies reporting payments in 2025, $12,413 in all, mostly consulting fees.
Overview
| NPI | 1194143644 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 2, 2014 |
| Last updated in NPPES | Sep 5, 2025 |
| Certified by provider | Sep 5, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | MD20852 | RI |
| Neurological Surgery | 207T00000X | T289635 | MA |
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 (MA); Practitioner - Neurosurgery (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 147 |
|---|---|
| Services billed | 337 across 64 procedure codes |
| Paid by Medicare | $127,243 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14 · 15 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $111.69 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- Lifespan Physician Group IncProvidence, RI · 1,173 clinicians
Hospital affiliations
- Massachusetts General HospitalBoston, MA
- Rhode Island HospitalProvidence, RI
- The Miriam HospitalProvidence, RI
Industry payments (Open Payments)
- 2025$12,413 · 18 payments from 5 companies
- 2024$17,375 · 52 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Globus Medical, Inc. | $11,361 | 10 |
| Depuy Synthes Products, Inc. | $450.00 | 1 |
| Arthrex, Inc. | $340.96 | 4 |
| Medtronic, Inc. | $205.02 | 2 |
| Si-Bone, Inc. | $55.79 | 1 |
What the 2025 payments were for
- Consulting Fee$9,900 · 3 payments
- Travel and Lodging$1,841 · 5 payments
- Food and Beverage$672.25 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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