William Thacker, M D
NPI 1639217516 · Anatomic Pathology & Clinical Pathology Physician · Greeneville, TN
William Thacker, M D is a Anatomic Pathology & Clinical Pathology Physician provider in Greeneville, TN (NPI 1639217516).
Provider details
- NPI number
- 1639217516
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M D
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD0000004219 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-02-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Thacker's NPI number?
- William Thacker's National Provider Identifier (NPI) is 1639217516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Thacker's specialty?
- William Thacker is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is William Thacker located?
- William Thacker's practice location on file with NPPES is 209 N College St, Greeneville, TN 37745-5092.
- What is William Thacker's phone number?
- The practice phone number listed in the NPPES registry for William Thacker is (423) 639-5781.
- Is William Thacker's NPI active?
- Yes — William Thacker's NPI (1639217516) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.