As part of Optum, ProHEALTH joins a nationwide family of dedicated physicians and care teams working together to help people live their healthiest lives. As part of a regional team of over 2,100 providers who serve more than 1.6 million patients, our doctors have access to the latest medical information and technology, which lets them provide better care and realize better outcomes. ProHEALTH serves patients throughout Long Island and New York City.