Doctor profile · Federal record
Dr. Rex Williams, M.D.
Pain Medicine (Anesthesiology) Physician (CMS: Pain Management) · Pain Medicine (Anesthesiology) Physician · Starkville, MS
- NPI 1821034596
- 25 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
107 Doctors Park
Starkville, MS 397592174
(662) 615-3751
fax (662) 615-3754 - Additional location
-
120 Stone Creek Blvd, Suite 500
Flowood, MS 392328205
(601) 420-2040 - Additional location
-
400 Hospital RD
Starkville, MS 397592163
(662) 323-4230 - Mailing address
-
350 N Humphreys Blvd Ste 201
Memphis, TN 381202177
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 6, 2025
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207LP2900X — NUCC code
- State licenses (2)
- Mississippi #19128 · Florida #ME92922
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821034596. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13,534
Distinct HCPCS
10
Medicare allowed
$468,164
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 4,418 | 362 | $0 | |
J2250 |
Injection, midazolam hydrochloride, per 1 mg | 2,783 | 366 | $0 | |
J2704 |
Injection, propofol, 10 mg | 1,775 | 122 | $0 | |
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 647 | 312 | $0 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 614 | 246 | $1 | |
62323 |
Injection of substance into lower spine canal using imaging guidance | 406 | 294 | $226 | |
Q9966 |
Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml | 304 | 170 | $0 | |
64493 |
Injection of lower or sacral spine facet joint using imaging guidance, single level | 242 | 150 | $204 | |
64494 |
Injection of lower or sacral spine facet joint using imaging guidance, second level | 217 | 136 | $106 | |
62323 |
Injection of substance into lower spine canal using imaging guidance | 204 | 129 | $90 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 322. This provider delivers 42× the peer median.Open Payments
Industry payments received
All-time total
$2,056
Transactions
40
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Spinal Simplicity, LLC | 10 | $1,258.29 | |
| SI-BONE, INC. | 2 | $224.05 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 10 | $162.80 | |
| SCILEX PHARMACEUTICALS INC. | 6 | $116.08 | |
| Nevro Corp. | 2 | $66.43 | |
| Curonix LLC | 3 | $56.62 | |
| Stryker Corporation | 1 | $47.80 | |
| VERTEX PHARMACEUTICALS INCORPORATED | 2 | $41.42 | |
| Boston Scientific Corporation | 2 | $39.19 | |
| Abbott Laboratories | 1 | $22.42 | |
| Collegium Pharmaceutical, Inc. | 1 | $20.65 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
702
Patients
226
Total drug cost
$11,409
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 110 | 56 | $2,217 |
| Gabapentin | Generic | 101 | 39 | $1,728 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 54 | 29 | $1,813 |
| Memantine Hcl | Generic | 48 | 0 | $766 |
| Donepezil Hcl | Generic | 43 | 0 | $372 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 41 | 26 | $760 |
| Tamsulosin Hcl | Generic | 40 | 0 | $422 |
| Amitriptyline Hcl | Generic | 37 | 13 | $436 |
| Potassium Chloride | Generic | 34 | 0 | $333 |
| Tizanidine Hcl | Generic | 34 | 17 | $547 |
Frequently asked questions
What is Dr. Rex Williams's medical specialty?
Dr. Rex Williams practices Pain Medicine (Anesthesiology) Physician in Starkville, MS.
Where does Dr. Rex Williams practice?
Dr. Rex Williams practices at 107 Doctors Park, Starkville, MS 397592174. Office phone: 6626153751.
What is Dr. Rex Williams's NPI?
Dr. Rex Williams's National Provider Identifier (NPI) is 1821034596, issued by NPPES.
Does Dr. Rex Williams accept Medicare assignment?
Dr. Rex Williams does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Rex Williams commonly perform?
Top Medicare-reported procedures in 2023: Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Injection, midazolam hydrochloride, per 1 mg (HCPCS J2250); Injection, propofol, 10 mg (HCPCS J2704). Source: CMS Medicare Physician & Other Practitioners file.