Dr. Mark M. Keating

Kevin Lorentsen is a Hematologist Oncology specialist and a Hematologist in Chambersburg, Pennsylvania. Dr. Lorentsen is rated as a Distinguished provider by MediFind in the treatment of Primitive Neuroectodermal Tumor (PNET). His top areas of expertise are Thrombocytopenia, Childhood Iron Deficiency Anemia, Subacute Combined Degeneration, and Iron Deficiency Anemia.

Ibrahim Sbeitan, MD, specializes in hematology oncology and is board-certified in internal medicine, medical oncology, and hematology by the American Board of Internal Medicine. He practices at UPMC Hillman Cancer Center. Dr. Sbeitan received his medical degree from the University of Jordan School of Medicine and completed his residency at Gundersen Medical Foundation in La Crosse, Wisconsin, followed by a fellowship at the University of Pittsburgh School of Medicine. Dr. Sbeitan is rated as a Distinguished provider by MediFind in the treatment of Primitive Neuroectodermal Tumor (PNET). His top areas of expertise are Chronic Familial Neutropenia, Familial Colorectal Cancer, Lynch Syndrome, and Colorectal Cancer.

Kristopher Hansen, DO, specializes in hematology oncology and is board-certified in internal medicine and medical oncology by the American Board of Internal Medicine. He is affiliated with UPMC Altoona. Dr. Hansen completed his fellowship at the University of Kansas School of Medicine, residency at Wake Forest University School of Medicine and medical degree at Edward Via College of Osteopathic Medicine. Dr. Hansen is rated as an Advanced provider by MediFind in the treatment of Primitive Neuroectodermal Tumor (PNET). His top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Chronic Lymphocytic Leukemia (CLL), and Chronic B-Cell Leukemia (CBCL).