Quick answers
- Which hospitals does James R. Walker Iii work at?
- Medicare's official clinician data lists James R. Walker Iii at 2 hospitals: Methodist Hospitals of Memphis and Regional One Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James R. Walker Iii see patients?
- Medicare's clinician data lists 1 practice location in Memphis, TN. Call before your visit to confirm the address.
- What is James R. Walker Iii's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Undersea and Hyperbaric Medicine.
- Does James R. Walker Iii accept Medicare assignment?
- Yes. Medicare's clinician data says James R. Walker Iii 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 James R. Walker Iii?
- (901) 516-7000, as listed in official Medicare / NPI Registry data.
- What is James R. Walker Iii's NPI number?
- 1700091477. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James R. Walker Iii works
Medicare's Facility Affiliation Data lists James R. Walker Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Methodist Hospitals of MemphisMemphis, TN · Acute Care Hospital · CCN 440049
- Regional One HealthMemphis, TN · Acute Care Hospital · CCN 440152
Practice locations
Addresses where James R. Walker Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 1265 Union AveMemphis, TN 38104 (901) 516‑7000
Group practices
Medicare enrollment lists James R. Walker Iii as a member of this group (CMS data updated 2026-10-02).
- Methodist University Emergency Physicians PLLC42 clinicians in the group
Specialties
Other emergency medicine doctors in Memphis
Clinicians with the same Medicare primary specialty in Memphis, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Tennessee, Hsc, College Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700091477 |
| 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