Metro Physical & Aquatic Therapy | 4,006 followers on LinkedIn. Metro Physical & Aquatic Therapy has grown to become the largest family owned and operated Rehabilitation practices in New York. Established in 1982 by founder Sherrie Glasser, M.S. P.T, and run by her son, Michael Mayrsohn DPT OCS, the practice has evolved to become the ONLY comprehensive outpatient company offering Physical, Occupational and Speech Therapy, along with Massage and Acupuncture services.