Quick answers
- Where does Mark McGrail see patients?
- Medicare's clinician data lists 6 practice locations, including Knoxville, TN, Newport, TN and Alcoa, TN. Call before your visit to confirm the address.
- What is Mark McGrail's specialty?
- Medicare lists Family Practice as the primary specialty, and also Preventive Medicine.
- Does Mark McGrail accept Medicare assignment?
- Yes. Medicare's clinician data says Mark McGrail 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 Mark McGrail?
- (423) 317-9344, as listed in official Medicare / NPI Registry data.
- What is Mark McGrail's NPI number?
- 1063488831. 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 Mark McGrail is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2018 Western AveKnoxville, TN 37921 (423) 317‑9344
- 215 Hedrick DrNewport, TN 37821 (423) 623‑5301
- 255 E Watt StAlcoa, TN 37701 (865) 273‑1616
- 6350 W Andrew Johnson HwyTalbott, TN 37877
- 6350 W Andrew Johnson Hwy, Dept 100Talbott, TN 37877 (423) 586‑5031
Group practices
Medicare enrollment lists Mark McGrail as a member of this group (CMS data updated 2026-10-02).
- Cherokee Health Systems130 clinicians in the group
Specialties
- Family Practiceprimary
- Preventive Medicinealso
Other family doctors in Knoxville
Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Uniformed Services Uhs Fe Hebert School Of Med |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063488831 |
| 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