Dr. David R.Greenblatt
Dr. Harold J. Brenner
Jacob I. Friesel
Nisa Leung

Dr. David R. Greenblatt is President of Advanced Radiation Oncology Services (AROS), a group of Comprehensive Cancer Care centers located in the New York metropolitan region. AROS is a consortium of 4 hospital based and two private freestanding cancer centers located in the NY metropolitan area. Dr Greenblatt started his first treatment center in conjunction with Valley Hospital a part of the Valley Health System. Dr Greenblatt has subsequently partnered with Brookdale Medical Center, Orange Medical Center and Bayonne Medical Center to provide state of the art cancer treatment to their patient base. He has also opened two additional freestanding centers adjacent to Nyack Hospital and Mt. Sinai Hospital of Queens.

Dr Greenblatt has assembled an international team of physicians and physicists who are leaders in their field. They are assisted by a team of professionals whose many years of education and experience help thousands of patients and families each year. This group treats the second largest patient base behind Memorial Sloane Kettering Cancer Center in the NY area.

Dr. Greenblatt was Chief Resident of Radiation Oncology and conducted a fellowship in brachytherapy at Memorial Sloan-Kettering Cancer Center in New York. He is the recipient of the American Medical Association's Recognition Award and has been recognized by New York Magazine as one of the best Doctors in NY and NJ. Articles by Dr. Greenblatt have been published in prestigious medical journals.