Quick answers
- Which hospitals does Andrew Walker work at?
- Medicare's official clinician data lists Andrew Walker at 2 hospitals: Maury Regional Hospital and Williamson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew Walker see patients?
- Medicare's clinician data lists 2 practice locations, including Columbia, TN and Nashville, TN. Call before your visit to confirm the address.
- What is Andrew Walker's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Andrew Walker accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew Walker accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Andrew Walker?
- (931) 381-1111, as listed in official Medicare / NPI Registry data.
- What is Andrew Walker's NPI number?
- 1629458906. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew Walker works
Medicare's Facility Affiliation Data lists Andrew Walker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Maury Regional HospitalColumbia, TN · Acute Care Hospital · CCN 440073
- Williamson Medical CenterFranklin, TN · Acute Care Hospital · CCN 440029
Practice locations
Addresses where Andrew Walker is enrolled with Medicare (CMS data updated 2026-10-02).
- 1224 Trotwood AveColumbia, TN 38401 (931) 381‑1111
- 4220 Harding PikeNashville, TN 37205 (615) 385‑3704
Group practices
Medicare enrollment lists Andrew Walker as a member of these groups (CMS data updated 2026-10-02).
- Cardiovascular Anesthesiologists PC142 clinicians in the group
- Columbia Anesthesia Services LLC43 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Columbia
Clinicians with the same Medicare primary specialty in Columbia, TN — not a recommendation.
Clinician information
| Graduation year | 2015 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629458906 |
| 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