William Lancaster, M.D.
NPI 1205279437 · Internal Medicine Physician · Memphis, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Lancaster, M.D. is a Internal Medicine Physician provider in Memphis, TN (NPI 1205279437).
Provider details
- NPI number
- 1205279437
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 54260 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
13 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$103 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2000 Church StBox 102, Ip HospitalistNashville, TN 37236-4400Phone: (615) 284-4672Fax: (615) 284-5752
Registry dates
- Enumerated
- 2013-04-06
- Last updated
- 2019-09-06
Frequently asked questions
- What is William Lancaster's NPI number?
- William Lancaster's National Provider Identifier (NPI) is 1205279437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Lancaster's specialty?
- William Lancaster is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Lancaster located?
- William Lancaster's practice location on file with NPPES is 6019 Walnut Grove Rd, Memphis, TN 38120.
- What is William Lancaster's phone number?
- The practice phone number listed in the NPPES registry for William Lancaster is (901) 226-3610.
- Does William Lancaster accept Medicare?
- William Lancaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Lancaster's NPI active?
- Yes — William Lancaster's NPI (1205279437) is active in the NPPES registry as of the last update on 2019-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.