About Us


  • JT Barnhart, FACHE

    Chief Executive Officer

    JT Barnhart has a successful record of healthcare leadership and operational excellence. He joins Dallas Medical Center from St. Lucie Medical Center in Port St. Lucie, FL, a member of Hospital Corporation of America (HCA). Barnhart served as Chief Operating Officer for the 229-bed facility, and while there, he was successful in improving HCAHPS and employee engagement while improving financial metrics and increasing ER visits and admissions. Read More

  • Chirag Patel, MD

    Chief Medical Officer

    Dr. Chirag Patel served his residency in the Internal Medicine Program at Jamaica Hospital Medical Center in New York from January 1999 – December 2001 and went on to become the Chief Resident. He then became the Faculty Supervisor over the Department of Internal Medicine in January 2002 and served in that position until December 2003. Read More

  • Janet Ruffin, DNP, RN, NEA-BC

    Chief Nursing Officer

    Janet brings more than 20 years of clinical experience to her role at DMC. During her career, she has worked in front-line and management positions in facilities ranging in size from 140 beds to 848 beds. As a nurse leader, Janet has managed multiple service lines including Neurology, Oncology, Cardiology, Behavioral Health, and Med-Surg. In her most recent position as CNO of Red Bud Regional Hospital in Red Bud, IL, she helped the facility attain Chest Pain Accreditation, and complete Joint Commission Accreditation with no patient care issues. Read More

  • Nick Geer

    Chief Financial Officer

    Nick Geer is an accomplished finance Executive with numerous successes in hospital management. He joins us from Northwest Health System in Bentonville, AR, a member of Community Health Systems, where he served as CFO. During his tenure he deployed Lean improvement processes, reduced contract labor year over year, and improved patient, physician and employee satisfaction. Read More

  • Governing Board

Administrative Representatives:

  • JT Barnhart, CEO, Chairperson
  • Nancy Thai-Adkins, Executive Assistant
  • Nick Geer, CFO
  • Jessie Liles, Quality Director


  • Shaun Kaiser, MD, Chief of Staff
  • Chirag Patel, MD, CMO
  • Rufus Green, MD
  • Charles Heath, CEO Metrocrest Services
  • Dan Heard, Wells Fargo
  • Gabriel Vargas, Farmers Branch Fire Department
  • Peter Grays, MD
  • Subba Kosuri, MD

Read more about the Prime Healthcare leadership here.