Dr. Howard Greenberg, MD is a hematologist oncologist in Astoria, NY and has over 50 years of experience in the medical field. Dr. Greenberg has extensive experience in Blood Disorders and Breast Neoplasms. He graduated from State University of New York Downstate Health Sciences University College of Medicine in 1973. He is affiliated with medical facilities Mount Sinai Hospital and Mount Sinai Queens. He is accepting new patients.