Quick answers
- Which hospitals does Rex Williams work at?
- Medicare's official clinician data lists Rex Williams at 2 hospitals: Baptist Memorial Hospital-Oktibbeha County and Russellville Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Rex Williams see patients?
- Medicare's clinician data lists 4 practice locations, including Russellville, AL, Oxford, MS and Starkville, MS. Call before your visit to confirm the address.
- What is Rex Williams's specialty?
- Medicare lists Pain Management as the primary specialty, and also Anesthesiology.
- Does Rex Williams accept Medicare assignment?
- Medicare's clinician data says Rex Williams may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Rex Williams?
- (256) 331-2700, as listed in official Medicare / NPI Registry data.
- What is Rex Williams's NPI number?
- 1821034596. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Rex Williams works
Medicare's Facility Affiliation Data lists Rex Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baptist Memorial Hospital-Oktibbeha CountyStarkville, MS · Acute Care Hospital · CCN 250050
- Russellville HospitalRussellville, AL · Acute Care Hospital · CCN 010158
Practice locations
Addresses where Rex Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 15225 Hwy 43Russellville, AL 35653 (256) 331‑2700
- 15225 Hwy 43, Suite IRussellville, AL 35653 (256) 331‑2700
- 2215 Jefferson Davis DrOxford, MS 38655 (662) 638‑0462
- 400 Hospital RdStarkville, MS 39759
Group practices
Medicare enrollment lists Rex Williams as a member of these groups (CMS data updated 2026-10-02).
- Russellville Hospital Inc.45 clinicians in the group
- Och Professional Services30 clinicians in the group
- MS Pain Institute Oxford PLLC5 clinicians in the group
Specialties
- Pain Managementprimary
- Anesthesiologyalso
Other pain management doctors in Alabama
Clinicians with the same Medicare primary specialty in Alabama — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Mississippi Medical College |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1821034596 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians