Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mark Allen McGrail, MD

Individual provider Family Medicine Physician · NPI 1063488831

Dr. Mark Allen McGrail, MD is a Family Practice in Knoxville, Tennessee. Graduated from Uniformed Services Uhs Fe Hebert School of Med in 1993, 33 years ago. Practices with Cherokee Health Systems, a 126-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Tennessee, Texas and Virginia.

Years since qualifying
33
Trained at
Uniformed Services Uhs Fe Hebert School of Med
Licensed in
TN, TX, VA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2018 Western Ave
Knoxville, TN 37921-5718
Phone: (865) 544-0406
Fax: (865) 544-0480
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 486 Archie Ct, Clarksville, TN 37043-2027 — (931) 801-5662

Specialties & licences

Addiction Medicine (Preventive Medicine) Physician (primary) Taxonomy 2083A0300X · Licence MD30708 (TN)
Family Medicine Physician Taxonomy 207Q00000X · Licence T8718 (TX)
Addiction Medicine (Family Medicine) Physician Taxonomy 207QA0401X · Licence 0101276467 (VA)
Addiction Medicine (Family Medicine) Physician Taxonomy 207QA0401X · Licence MD30708 (TN)

Record details

NPI number1063488831
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 23, 2006
Last updated in NPPESMay 20, 2025
Certification dateMay 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Also practisesPREVENTIVE MEDICINE
Medical schoolUNIFORMED SERVICES UHS FE HEBERT SCHOOL OF MED
Graduated 1993 (33 years in practice)
Group practice Cherokee Health Systems — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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