Dr. David Brieff is an infectious disease specialist in Greenvale, New York and is affiliated with multiple hospitals in the area, including St. Catherine of Siena Hospital and St. Francis Hospital & Heart Center. He received his medical degree from Columbia University Vagelos College of Physicians and Surgeons and has been in practice for more than 20 years. Dr. David Brieff accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.