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

Dr. Terrence Jay O'Neil, MD

Individual provider Nephrology Physician · NPI 1790893071

Dr. Terrence Jay O'Neil, MD is a Nephrology Physician in Mountain Home, Tennessee. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
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 Partly verified

Some contact details are missing from the federal record.

James Quillen VA Medical Center Sidney & Lamont St'S- Box 4000 - Mail Stop Code 11A
Mountain Home, TN 37684-4000
Phone: (423) 926-1171
Fax: (423) 979-3522
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X (IL)

Record details

NPI number1790893071
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 28, 2006
Last updated in NPPESSeptember 7, 2023
Mailing addressP.O. Box 4000, Mail Stop 11a; Acos/Ambcare, Mountain Home, TN 37684