Our bariatric team is led by Mark Colquitt, MD and Jonathan Ray, MD, both board-certified surgeons with more than 25 years combined experience and 2,200 bariatric surgeries.

Drs Ray and Colquitt

Mark A. Colquitt, MD
MD, FACS, FASMBS

Dr. Colquitt was born in Knoxville. He completed four years of active duty in the Navy as a surgeon prior to returning to East Tennessee in 1994.


Jonathan H. Ray, MD
MD, FACS, FASMBS

Dr. Ray is originally from Thibodaux, LA and began his practice in Maryville in 1988.


Katherine Romero, RNKatherine Romero, RN
Program Coordinator

Dana Bradley, RNDana Bradley, RN
Nurse Coordinator

Rachel Ignomirello, MS, RDN, LDN, Clinical Dietician

Rachel Ignomirello, MS, RDN, LDN
Clinical Dietician