Mark A. Wigger MD

Residency, Internal Medicine and Pediatrics - East Tennessee State University's James H. Quillen College of Medicine, 1985
Doctor of Medicine - East Tennessee State University, 1987
Residency, Internal Medicine - Vanderbilt University Medical Center, 1987
Fellowship, Nephrology - Vanderbilt University Medical Center, 1989
Fellowship, Transplant Medicine - Oregon Health Sciences University, 1990

Board Certifications

Internal Medicine - American Board of Internal Medicine, 1990

Patient Comments

Patient Comments are gathered from the Press Ganey Patient Experience Survey and displayed in full. Patients are not identified in order to respect patient privacy.

Very informative and talked to me on a level that I understood!

March 7, 2026

Dr. Rigger was very professional, kind and concerned with my issues. Thank you Dr. Wigger

March 6, 2026

I really like the care I get from Dr. Wigger. He is honest, straightforward and cares. I have been seeing him since 2009 and determine my insurance coverage on whether or not he's in network.

February 4, 2026

Dr. Wigger took the time to go over meds list and explain any additions or deletions. He spent the time needed to discuss a long hospital and rehab facility stay. We love Dr. Wigger.

February 3, 2026

Couldn't ask for better care, knowledge, understanding and relatability 5 stars

February 3, 2026

Dr Wigger was very attentive and clearly explained my medical situation and answered all my questions. He couldn't have been better.

January 10, 2026

Dr. Wigger is always very professional, knowledgeable and polite.

November 6, 2025

Excellent care

October 9, 2025

Very thorough, explains everything but most of all shows he cares

September 27, 2025