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

Dr. John Carlton Boys, MD

Individual provider Radiation Oncology Physician · NPI 1386645240

Dr. John Carlton Boys, MD is a Radiation Oncology in Greeneville, Tennessee. Graduated from University of South Carolina School of Medicine in 1982, 44 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
44
Trained at
University of South Carolina School of Medicine
Licensed in
TN
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1420 Tusculum Blvd
Greeneville, TN 37745-4279
Phone: (423) 787-5041
Fax: (423) 787-5046
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence MD0000024406 (TN)

Record details

NPI number1386645240
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 2, 2005
Last updated in NPPESAugust 26, 2021
Certification dateAugust 26, 2021

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF SOUTH CAROLINA SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare