About Environmental Heath Center Dallas Professionals

Learning About the Professionals

William J. Rea, M.D., is a thoracic and cardiovascular surgeon with a strong passion for the environmental aspects of health and disease. Founder of the Environmental Health Center (EHC-D), Dr. Rea is currently director of this highly specialized Dallas based medical facility.

In 1988, Dr. Rea was named to the world’s first professorial chair of environmental medicine at the Robens Institute of Toxicology at the University of Surrey in Guildford, England. He was also awarded the Jonathan Forman Gold Medal Award in 1987 and the Herbert J. Rinkel Award in 1993, both by the American Academy of Environmental Medicine, as well as named Outstanding Alumnus by Otterbein College in 1991. He was also named to the Mountain Valley Water Hall of Fame for work in the field of study of clean water and, in 1995, he received the F.A.M.E. Award for pioneering work in environmental and preventive medicine. In 1997 he was named International Man of the Year and in 2002 Dr. Rea received the O. Surgeon English Humanitarian Award from Temple University.

Author of the medical textbooks, Chemical Sensitivity, Vol. 1-4, co-author of Reversibility of Chronic Degenerative Disease and Hypersensitivity, V. 1: Regulating Mechanisms of Chemical Sensitivity, Reversibility of Chronic Degenerative Disease and Hypersensitivity, V. II: The Effects of Environmental Pollutants on the Organ Systems, Reversibility of Chronic Degenerative Disease and Hypersensitivity, V. III: Clinical Environmental Manifestations of the Neurocardiovascular Systems, a home building book, Optimum Environments for Optimum Health and Creativity, and co-author of Your Home, Your Health and Well-Being, Dr. Rea has published more than 100 peer-reviewed research papers related to the topic of thoracic and cardiovascular surgery and environmental medicine.

Born in Jefferson, Ohio, Dr. Rea graduated from Otterbein College in Westerville, Ohio, and Ohio State University College of Medicine in Columbus, Ohio. He then completed a rotating internship at Parkland Memorial Hospital in Dallas, Texas. He held a general surgery residency from 1963-67 and a cardiovascular surgery fellowship and residency from 1967-69 with The University of Texas-Southwestern Medical School system, which includes Parkland Memorial Hospital, Baylor Medical Center, Veterans Hospital and Children’s Medical Center.

From 1984-85, Dr. Rea held the position of adjunct professor of environmental sciences and mathematics at the University of Texas, while from 1972-82, he acted as clinical associate professor of thoracic surgery at The University of Texas Southwestern Medical School. He has also served as chief of thoracic surgery at Veterans Hospital and as adjunct professor of psychology and guest lecturer at North Texas State University.

Curriculum Vitae- Rea

Patient Reviews


overberg_photo Ron Overberg, Ph.D., C.C.N. (certified clinical nutritionist), works with the nutritional deficiencies associated with a specific diagnosis, or with medications and their interactions. He also offers alternatives to medication when a good, safe, and effective choice is available. Dr. Ron can be reached through the EHC-D clinic, on the web, or email drron@nutriwellness.com.

simon_photo Theodore R. Simon, M.D. SPECT Scan/Bone Density Practice Management
General Nuclear Medicine focusing on neurotoxicity, cardiac disease, and cancer Forensic Consultation

carol_cole2-2 Carol Cole, Ph.D., is a “relationship counselor” who approaches each session from the perspective of the person as a whole — the body in relationship to the mind, emotions, and the spirit. She holds a Ph.D. and license in Marriage and Family Counseling and a Masters in Communication. She is a member of the American Association of Marriage and Family Therapists and the Institute of Noetic Sciences. Carol can be reached at carol@drcarolcole.com or by calling 214/707-9491.

Pan-Yaqin Yaqin Pan, M.D., is a Research Physician at the Environmental Health Center-Dallas and a specialist in Bioregulation Therapy (BRT).

Dr. McCarter Stephanie McCarter, M.D. currently practices internal medicine and environmental medicine with Dr. William Rea at the Environmental Health Center of Dallas. She has 13 years of experience in the field of environmental medicine and has built her own eco-friendly, low-EMF home, working with well-known experts in healthy house building, including David Rousseau and Tang Lee of Canada, and Mary Oetzel in Texas.

Dr. McCarter has been acknowledged for her work on Dr. Rea’s most recent book, “Reversibility of Chronic Degenerative Disease and Hypersensitivity, Vol. 1. She has extensive experience with electromagnetic sensitivity, lecturing on the subject at the American Academy of Environmental Medicine Spring conference in April, 2015 and at the 25th and 28th Annual International Symposiums on “Man and His Environment in Health and Disease.”

Dr. McCarter is board certified in Internal Medicine and is a member of the American College of Physicians and the Alpha Omega Alpha medical society. She graduated from Indiana University School of Medicine in 1993 and from Pepperdine University in 1989.


Dr. Nancy Didriksen
Dr. Didriksen has specialized for more than 30 years in the evaluation and treatment of patients with chemical / environmental sensitivity and/or who have been exposed to neurotoxic substances. She typically conducts neuropsychological evaluations for litigation and/or disability issues (private or Social Security disability). She also evaluates and treats patients with related illnesses, including chronic fatigue syndrome, fibromyalgia, Lyme disease, MS, etc.As a clinical health psychologist, she uses a variety of treatment modalities including relaxation training, meditation, and guided imagery. She has also successfully utilized Thought Field Therapy techniques, primarily to eliminate the impact of past negative events and to reduce levels of anxiety and depression.

Her many years of experience have been spent evaluating and treating patients who have been exposed to toxic/neurotoxic substances and/or who have chemical/environmental sensitivities.