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Meet our Bariatric Team

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

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

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


Patient Stories

  • Back in the Saddle

    After spine surgery at Fort Sanders Regional, Michelle Rose is finally free from the suffering that held her back for so long.

  • Going Beyond the Limit

    Tammy Brooks arrived by helicopter at Fort Sanders Regional Medical Center at least 24 hours – maybe even several days – after suffering an acute ischemic stroke.

  • WATE-TV: East Tennessee man survives one of the deadliest types of stroke

    A local man survived the type of stroke that normally kills 80 percent of its victims. He’s doing so well, he just moved to Europe and is enjoying life to its fullest. It’s been three and a half years since Ken Harrawood suffered a stroke. It hit while he was driving to Y-12 for his first day of work with Bechtel. He now lives in Manchester, England.

  • WATE-TV: Technician who works with stroke patients becomes one himself

    Adam Hill gets the tools in place for the next life-saving surgery in the interventional radiology lab at Fort Sanders Regional Medical Center. As lead tech, Hill knows this place like the back of his hand. He never dreamed he’d be a patient receiving treatment here, suffering from a ruptured aneurysm, like so many patients he’s helped treat.

  • Fast Action Makes a Difference for Stroke Patient

    Since recovering from a stroke, Paul DeWitt appreciates simple pleasures that are easily taken for granted. He grasps a cup of coffee. He smiles and laughs. He even appreciates the ability to whistle.

  • Doctors Use Tiny Vacuum To Help Stroke Patients

    Jane Coleman heard her husband make an odd noise, “almost like hiccups but not exactly,” but when she turned to look at him, she knew immediately what was happening: He was having a stroke.