Physicians of the Abington Hematology Oncology Associates All physicians are affiliated with Abington Memorial Hospital and Holy Redeemer Hospital. Peter Pickens, MD Learn more about Dr. Pickens Joseph Potz, MD Learn more about Dr. Potz Marc Chernoff, DO Learn more about Dr. Chernoff Jason Damsker, MD Learn more about Dr. Damsker Jessica Berman, MD Learn more about Dr. Berman Felice LePar, MD, MPH Learn more about Dr. LePar Michael Seidman, MD Learn more about Dr. Seidman Jascha Rubin, MD Learn more about Dr. Rubin