About Dr. Gnap

Dr. Gnap is a family practice physician and behavioral medicine specialist in suburban Chicago.

Dr. Gnap developed the Inner Control™ Program in 1969 and has worked with thousands of patients to improve and correct medical, emotional, behavioral and learning problems including performance. He started the Inner Control™ program because so many patients asked, “what more can be done along with traditional treatment methods?”

Dr. Gnap is a graduate of the Stritch School of Medicine, Loyola University, Chicago, Illinois. He completed his internship at Cook County Hospital.

Dr. Gnap was a captain in the U.S. Army Medical Corps from 1964-1966 including service in Vietnam. He started private practice in 1967 and served as a Diplomate of the American Board of Family Medicine from 1972-2004. He is an Assistant Professor at Rush Presbyterian St. Luke’s Medical Center in the department of Family Practice. He is a Fellow of the American Academy of Family Physicians.

Dr. Gnap is a member of the Illinois State Medical Society, the Chicago Medical Society, and the Illinois Academy of Family Physicians. Dr. Gnap utilizes Palos Community Hospital for Inpatient Care.

Dr. Gnap is the author of “Easy Sleep,” a book on correcting insomnia published in 1978. He resides in Palos Heights, Illinois along with his wife, Jean. He has three children and three grandchildren.

Contact Us

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10436 S. Southwest HWY Suite #4 Chicago IL, 60415


Family Practice


Inner Control