Doctor profile · Federal record
Dr. Theresa Williamson, MD
Neurological Surgery Physician (CMS: Neurosurgery) · Neurological Surgery Physician · Providence, RI
- NPI 1194143644
- Accepts Medicare
- 12 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
593 Eddy St
Providence, RI 029034923
(401) 793-9166
fax (401) 444-2788 - Additional location
-
164 Summit Ave
Providence, RI 029062853
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- September 5, 2025
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State licenses (2)
- Rhode Island #MD20852 · Massachusetts #T289635
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194143644. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
228
Distinct HCPCS
10
Medicare allowed
$69,116
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
22614 |
Fusion of additional segment of spine | 44 | 12 | $403 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 33 | 33 | $178 | |
22853 |
Insertion of cage or mesh device to spine bone and disc space during spine fusion | 22 | 15 | $271 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 22 | 22 | $239 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 20 | 19 | $140 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 18 | 16 | $95 | |
22842 |
Placement of stabilizing device to back, 3-6 spine bone segments | 17 | 17 | $783 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 17 | 16 | $61 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 13 | 13 | $193 | |
63047 |
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | 11 | 11 | $1,084 |
In context: peer comparison
Among 11 peers in Providence Neurological Surgery Physician, average services per provider: 28. This provider delivers 8.1× the peer median.Open Payments
Industry payments received
All-time total
$17,375
Transactions
52
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medical Device Business Services, INC. | 9 | $8,941.37 | |
| DePuy Synthes Products, INC. | 7 | $4,552.16 | |
| Medtronic, INC. | 11 | $1,463.45 | |
| Globus Medical, INC. | 10 | $1,033.80 | |
| Alphatec Spine, INC | 12 | $919.88 | |
| Kuros Biosciences USA, INC | 1 | $305.00 | |
| Bioventus LLC | 1 | $82.67 | |
| Centinel Spine, LLC | 1 | $76.45 |
By nature of payment
Frequently asked questions
What is Dr. Theresa Williamson's medical specialty?
Dr. Theresa Williamson practices Neurological Surgery Physician in Providence, RI.
Where does Dr. Theresa Williamson practice?
Dr. Theresa Williamson practices at 593 Eddy St, Providence, RI 029034923. Office phone: 4017939166.
What is Dr. Theresa Williamson's NPI?
Dr. Theresa Williamson's National Provider Identifier (NPI) is 1194143644, issued by NPPES.
Does Dr. Theresa Williamson accept Medicare assignment?
Yes. Dr. Theresa Williamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Theresa Williamson commonly perform?
Top Medicare-reported procedures in 2023: Fusion of additional segment of spine (HCPCS 22614); New patient office or other outpatient visit (HCPCS 99204); Insertion of cage or mesh device to spine bone and disc space during spine fusion (HCPCS 22853). Source: CMS Medicare Physician & Other Practitioners file.