William Mariencheck, MD
NPI 1467432203 · Sleep Medicine (Internal Medicine) Physician · Memphis, TN
William Mariencheck, MD is a Sleep Medicine (Internal Medicine) Physician provider in Memphis, TN (NPI 1467432203).
Provider details
- NPI number
- 1467432203
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5396 (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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-18
- Last updated
- 2019-11-12
Frequently asked questions
- What is William Mariencheck's NPI number?
- William Mariencheck's National Provider Identifier (NPI) is 1467432203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mariencheck's specialty?
- William Mariencheck is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Mariencheck located?
- William Mariencheck's practice location on file with NPPES is 5050 Poplar Ave, Memphis, TN 38157-0101.
- What is William Mariencheck's phone number?
- The practice phone number listed in the NPPES registry for William Mariencheck is (901) 276-2662.
- Is William Mariencheck's NPI active?
- Yes — William Mariencheck's NPI (1467432203) is active in the NPPES registry as of the last update on 2019-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.