Dr. Ferstenberg graduated from Universite Libre de Bruxelles in 1977 and has been in practice for 40 years. He completed a residency at Beth Israel Deaconess Medical Center. Dr. Ferstenberg also specializes in Gastroenterology. Dr. Ferstenberg accepts multiple insurance plans including Aetna, Empire Blue Cross Blue Shield and Medicare. Dr. Ferstenberg also practices at Henry Fersgenderg MDCP in Brooklyn, NY. In addition to English, Dr. Ferstenberg's practice supports this language: Spanish.