William F. Pettit Jr., M.D., is co-owner with his wife, Linda, of 3 Principles Intervention LLC. Dr. Pettit has presented the Three Universal Principles of Mind, Consciousness and Thought as the essence of his psychiatric practice since 1983. He also practices psychiatry at the Family Medical Center of Michigan.
A graduate of Creighton University, Omaha, NE and the University of Illinois College of Medicine, Chicago, IL, Dr. Pettit completed his psychiatric residency at the Philadelphia Naval Regional Medical Center in Philadelphia, PA. He is board-certified in Psychiatry, and has been previously certified in Adolescent Psychiatry, Geriatric Psychiatry and Psychosomatic Medicine and Addiction Medicine.
Dr. Pettit served as a physician in the United States Navy for over 9 years, including 3 years as Chief of Psychiatry of the Navy Nuclear Submarine base at Groton, Connecticut.
Presently, Dr. Pettit holds an appointment as Clinical Professor at Michigan State University, College of Osteopathic Medicine, Department of Psychiatry and also as Adjunct Professor of Counseling in the Graduate College at Siena Heights University. Formerly, Dr. Pettit held an appointment as Associate Professor of Behavioral Medicine and Psychiatry at West Virginia University (WVU) and was the Medical Director of the Sydney Banks Institute at WVU. Previously, Dr. Pettit held an appointment as Adjunct Assistant Professor at the Des Moines, Iowa Osteopathic School of Medicine
Dr. Pettit is a recognized educator in the Three Principles intervention, and has presented at many national and international conferences and consulted to numerous clients both nationally and internationally.