Mark Mcgrail, M.D.
NPI 1063488831 · Addiction Medicine (Preventive Medicine) Physician · Knoxville, TN
Provider details
- NPI number
- 1063488831
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Preventive Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- T8718 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
2 documented practice locations
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
Additional practice locations (1)
- 486 Archie CtClarksville, TN 37043-2027Phone: (931) 801-5662
Registry dates
- Enumerated
- 2006-02-23
- Last updated
- 2025-05-20
- Certified
- 2025-05-20
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.