Dr. Leone started his practice in Buffalo Grove, Illinois in 1970. His reputation became synonymous with the treatment of psoriasis, attracting patients from the Chicago metropolitan and surrounding areas. By 1977, he opened the Psoriasis Treatment Center in Arlington Heights; a facility designed specifically to meet the needs of both a general dermatology center and a treatment center for psoriasis and other photo-responsive skin disorders. In 1980, Dr. Richard Giacobetti joined the practice, and after changing the name of the facility to Leone Dermatology Center in 1991, our medical staff was expanded by the addition of Dr. Sheryl Hoyer in 1995, Dr. Nicole Conrad in 2004,  Dr. Stephen Carter in 2005 and Dr. Heather Downes in 2008.