Thomas Dalton, M.D., is an Associate Professor in the Department of Internal Medicine at UT Southwestern Medical Center and a member of its Division of Geriatric Medicine. His clinical interests center on acute care of the older adult, perioperative care for older adults undergoing elective surgery, and building interprofessional teams to help older adults and their families navigate the health care system.

Originally from the Dallas area, Dr. Dalton attended medical school at UT Southwestern, where he also completed residency training in Internal Medicine. After serving an additional year as Chief Resident in Internal Medicine, he went to Duke University to complete a fellowship in Geriatric Medicine with a concentration in Medical Education.

Board-certified in internal medicine and geriatric medicine, he joined the UT Southwestern faculty in 2014.

Outside of his clinical work, Dr. Dalton teaches and mentors medical students and doctors in training. He also serves on several committees dedicated to medical curricula, interprofessional education, and other topics.

Dr. Dalton was included in D Magazine's Best Doctors list for 2021 and 2022.

In 2018, Dr. Dalton received UT Southwestern's Rising Star Award.

Personal Note

Dr. Dalton enjoys spending time with his family, reading novels and biographies, and following the Texas Rangers and the Dallas Cowboys.


Medical School
UT Southwestern Medical Center (2008)
UT Southwestern Medical Center (2011), Internal Medicine
Chief Resident
UT Southwestern Medical Center (2012), Internal Medicine
Duke University Medical Center (2014), Geriatric Medicine

Research Interest

  • Acute care of older adults
  • Medical Education
  • Perioperative care of older adults

Honors & Awards

  • Provider Patient Safety Star Award, Clements University Hospital
  • 1st Place, Innovation and Learner Poster Award
    Perioperative Optimization of Senior Health, Duke Medicine Patient Safety Conference (2014)
  • Lorraine Sulkin-Schein Internal Medicine Housestaff Award in Geriatric Medicine
    UT Southwestern Internal Medicine Residency Program (2011)
  • Resident Award
    Southeast Center for Excellence in Geriatric Medicine (2010)

Professional Associations/Affiliations

  • Alpha Omega Alpha Honor Medical Society (2011)
  • American College of Physicians (2008)
  • American Geriatrics Society (2009)
  • Society of Hospital Medicine (2014)