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

John Mathis Barnett, MD

Individual provider Radiation Oncology Physician · NPI 1538177217

John Mathis Barnett, MD is a Radiation Oncology Physician in Tyler, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
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

700 Olympic Plaza Cir Ste 700
Tyler, TX 75701-1951
Phone: (903) 262-3900
Fax: (903) 262-3993
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence E4190 (TX)

Record details

NPI number1538177217
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 4, 2006
Last updated in NPPESAugust 14, 2013
Mailing address700 Olympic Plaza Cir, Suite 700, Tyler, TX 75701-1951

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