John Dale Dunn, M.D., J.D. is a policy advisor for The Heartland Institute and the American Council on Science and Health. He has been a civilian emergency medicine faculty physician at Carl R. Darnall Army Medical Center, Fort Hood, Texas, since 2003. Fort Hood is the largest United States Army base and the home of the 1st Cavalry and 4th Infantry Divisions. Since 2005, he has been Adjunct Instructor-Military/Emergency Medicine, Uniformed Services University of Health Sciences, in Bethesda, Maryland.

Dr. Dunn has been a practicing physician for 35 years and an emergency physician for 33 years. He has served as a public health authority for Brown County, Texas for more than 10 years and currently is the Brown County Sheriff’s Medical Officer. He served in numerous capacities at the Brownwood Regional Medical Center, including on the Board of Trustees from 1988 to 1991; Chairman, Quality Assurance Committee of Medical Staff, 1988, 1989; Chairman, ICU/ER Committee, 1989, 1991, 1992; Chief of Emergency Services, 1987-90, 1992-93, 1996; Director of Emergency Services, 1986 - 2004; and Chief of Staff, 1993.

Dr. Dunn was an instructor on environmental law at Howard Payne University, in Brownwood, Texas from 1989 - 1995. He is a reviewer for the Annals of Emergency Medicine, 1991 to present, and of Military Medicine, 2006 to present.

Dr. Dunn is or was board certified by the American Board of Family Practice (1976, recertified 1982, did not recertify 1989); American Board of Emergency Medicine, 1985, Oral Boards Examiner, 1988-94, recertified 1995, 2004-2015; and American Board of Legal Medicine, 1983. He has held fellowships with the American Academy of Family Practice, 1976-2000; American College of Legal Medicine, 1982-2000; and American College of Emergency Physicians, 1985-2000.

Dr. Dunn received his B.S. in biology in 1967, M.D. in 1971, and J.D. in1979, all from Creighton University, in Omaha, Nebraska.