Dr. Sprague has had a long career in family practice, allergy treatment, and environmental medicine. His history includes eight years as a family physician in Beeville, Texas. In his practice there, he concentrated on primary care, with a special interest in obstetrics. During this time, he delivered 2,000+ babies, the last two being his own. It was during this time that Dr. Sprague first became involved in alternative and environmental medicine.
From 1980 to 1986 Dr. Sprague studied and practiced all aspects of environmental medicine at a prominent clinic in Dallas, Texas, including alternative Low Dose Allergy treatments, which he continues to offer today. During this time he also established a ground-breaking Pre-Menstrual Syndrome Clinic. He is certified by the American Board of Environmental Medicine in all aspects of environmental medicine, including nutrition, toxicology, allergies, chemical sensitivity and occupational medicine.
Then following a childhood dream, Dr. Sprague began an active duty Naval career which took him from occupational health doctor, to flight surgeon, and finally, to board certified Aerospace Medicine Specialist. He served as the Senior Medical Officer on two aircraft carriers before retiring in the fall of 1999.
Dr. Sprague returned to Texas in 1999 to re-open his private practice, but was soon lured by NASA in Houston, Texas to act as their Medical Director, Occupational Medicine Clinic and Project Manager for medical aspects of astronaut training.
Additionally, in conjunction with his training and interest in aviation medicine, Dr. Sprague is a qualified pilot and Senior FAA Medical Examiner, who provides FAA flight physicals to many local pilots.
Upon retiring from NASA in 2003, Dr. Sprague began working in wound care and hyperbarics in Webster, Texas, and continues to work in this field to this date.
Due to the unique characteristics of the clinic at South Coast Hyperbaric Medicine, he was able to begin hyperbaric treatments for children with Autism, Cerebral Palsy, traumatic brain injured children and adults, and stroke victims, along with the usual wound care patients. The results were impressive.
Since 2004, Dr. Sprague has continued to treat Autistic and developmentally delayed children in his private practice, offering LDA allergy treatment for their food allergies, counseling and education in nutritional supplements geared toward this population, and various DAN! protocols. These children continue to hold a special place in his heart and mind. Becoming the Medical Director at Healing Provisions has allowed him to continue to take an active role with these patients even though his private practice is full.