About Us

Barry is an Environmental Medicine Specialist that looks into the root causes of environmental exposures and how the body’s responses can lead to chronic inflammatory conditions. He has dedicated his career to healing children and families after his own son was diagnosed with multiple medical conditions, from which all he has significantly improved.

Barry has a Master’s in Physician Assistant studies from Finch University/Chicago Medical School. He is the Co-Executive Director of the American Academy of Environmental Medicine. Barry is also the first Physician Assistant in the country that has been given the designation of Fellow of Environmental Medicine. He is also an Adjunct Professor at the University of Texas Medical Branch in San Antonio.

Barry is an internationally recognized speaker that has presented for organizations such as AAEM, TACA, Autism One, AHS and NIAS in China. His knowledge in environmental topics include specializing in Low Dose Allergen (LDA) therapy, Mold and Mycotoxins, chemical sensitivities, and Neuroinflammatory disorders such as PANS/PANDAS.

Barry enjoys spending time with his family and friends camping, biking, homesteading, reading and visiting our local farmer’s markets. He is happily married to his wife of over 25 years, Linda, and is the father of six wonderful children. He also enjoys playing sports, working on his homestead with their multiple different animals, and traveling with his family in an RV to different events and destinations.

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.

Kaitlin is a Certified Nutritional Consultant whose passion is tapping into the healing power of food to achieve optimal health and functionality for her clients. Her interest in holistic health was sparked when one of her children was diagnosed with severe autism. After witnessing the complete transformation that occurred in her son with a functional health approach and dietary intervention, she knew she had no choice but to dedicate her life to this field.

Kaitlin has worked at Healing Provisions for several years as a clinical assistant. She is earning her credentials through Trinity School of Natural Health, which has enabled her to now offer comprehensive nutritional expertise to clients of Healing Provisions and around the globe. Though she specializes in children with neurological impairments and developmental disabilities, Kaitlin is equipped to improve the health of the overall well-being of individuals of any age and walk of life.

As a mom of three wonderful boys, Kaitlin is always on the go. In her spare time, she enjoys exploring the remote beauty of Central Texas, cooking, gardening, reading, writing, and occasionally venturing into the city for live music or stand-up comedy.

As Director of Operations, Linda ensures all office functions are running efficiently, professionally, and meeting the needs of our patients and families. With a background as Director of Operations and Project Manager, Linda brings the skills needed to keep Healing Provisions running smoothly, and providing the best care possible for patients. Linda is also Co-Executive Director of The American Academy of Environmental Medicine.

Linda is the wife to Barry Smeltzer MPAS, PA-C FAAEM for over 25 years and together, they have 6 wonderful children. She continues to advocate for the Autism community, in seeking out the medical issues that can lead to the checklist diagnosis and properly addressing them. As a foodie of real nutrient dense food, Linda has years of experience cooking with a variety of ingredients and working with new options as they roll out to make delicious options for the entire family. In her spare time as an Aggie Mom, she loves gardening, homeschooling, hockey, enjoying their animals on their homestead, and traveling with the family.