Gary Guerriero is the co-owner U.S. Athletic Training and clinical director of Gary Guerriero P.T., P.C. Prior to opening U.S.A.T.C. in 1994, Gary was head Physical Therapist for the New York Rangers from 1983-1993. Gary also worked with the New York Knicks and the New York City Ballet. At the 1984 Olympic Games in Los Angeles, Gary was the Head Athletic Trainer for U.S.A. Baseball and U.S.A. Track and Field. His involvement with Team U.S.A. also included time with the bobsled, luge, and alpine events at the Olympic Training Center in Lake Placid, New York. In the 1996 Olympic Games in Atlanta, Gary was the physical therapist and strength coach for the Modern Pentathlon.

Since opening U.S.A.T.C., Gary has treated numerous world-class and professional athletes, Billboards Top 100 artists and performers, industry icons, and business executives. He was named one of the "55 Best Trainers" in America and #1 in New York. He has been featured most recently in the Financial Times, New York Times, Daily News, Men's Health, Men's Journal, Elle Magazine, and numerous appearances on Eye Witness News with Dr. Jay Adlersberg. Gary has been treating patients for over 35 years and has close relationships with top orthopedic surgeons across the country. He holds a degree in Physical Therapy from Downstate Medical School.