Quick answers
- Where does William Lancaster see patients?
- Medicare's clinician data lists 4 practice locations, including Memphis, TN, Atoka, TN and Southaven, MS. Call before your visit to confirm the address.
- What is William Lancaster's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does William Lancaster accept Medicare assignment?
- Yes. Medicare's clinician data says William Lancaster 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 William Lancaster?
- (901) 685-8245, as listed in official Medicare / NPI Registry data.
- What is William Lancaster's NPI number?
- 1205279437. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where William Lancaster is enrolled with Medicare (CMS data updated 2026-10-02).
- 1717 W Massey RdMemphis, TN 38120 (901) 685‑8245
- 36 Capital Way, Suite EAtoka, TN 38004 (901) 837‑6801
- 363 Southcrest Cir, Suite 103Southaven, MS 38671 (662) 772‑5222
- 6019 Walnut Grove RdMemphis, TN 38120 (901) 226‑5000
Group practices
Medicare enrollment lists William Lancaster as a member of these groups (CMS data updated 2026-10-02).
- Southeastern Physician Services PC593 clinicians in the group
- Baptist Memorial Medical Group, Inc.576 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal 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 Mississippi School Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205279437 |
| 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
- 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