Dr. John Martens

Robert Beherns, MD is a medical oncology and hematology physician with Mission Cancer + Blood. Dr. Behrens received a Bachelor of Science degree with distinction in Chemistry from Iowa State University. His medical degree was awarded by the University of Iowa College of Medicine. He completed a residency in Internal Medicine at the Johns Hopkins University / Sinai Hospital in Baltimore, Maryland. Dr. Behrens completed a fellowship at the National Cancer Institute (NCI) in Bethesda, Maryland. He specialized in immuno-therapy of cancer and was protocol chairman of a national breast cancer vaccine trial. Dr. Behrens has been extensively involved in colon, pancreas, and ovarian vaccine trials. Dr. Behrens is highly rated in 98 conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Lung Cancer, Febrile Neutropenia, Bone Marrow Aspiration, and Colonoscopy. Dr. Behrens is currently accepting new patients.

Dr. George Voynov is a radiation oncologist. He graduated from Connecticut College in New London, Connecticut with a Bachelor of Arts in Biochemistry. He earned his medical degree from the University of Connecticut School of Medicine. After medical school, Dr. Voynov completed his internship at Thomas Jefferson University Hospital in Philadelphia and his residency in radiation oncology at the University of Pittsburgh, Pennsylvania. Dr. Voynov is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Pleuropulmonary Blastoma, Posterior Fossa Tumor, Primitive Neuroectodermal Tumor (PNET), Lung Cancer, and Gamma Knife Radiosurgery. Dr. Voynov is currently accepting new patients.

Tara Graff, DO, specializes in Hematology/Oncology at Mission Blood + Cancer in Des Moines, Iowa.Medical interests:Dr. Graff has led several clinical research projects and has published many original oncology and hematology articles.Certifications: Internal Medicine; Medical OncologyMedical School: Lake Erie College of Osteopathic Medicine, Bradenton, FL Residency:Medical College of Wisconsin; Froedtert Memorial Lutheran Hospital Fellowship: Medical College of Wisconsin; Froedtert Memorial Lutheran Hospital. Dr. Graff is highly rated in 100 conditions, according to our data. Her clinical expertise encompasses B-Cell Lymphoma, Non-Hodgkin Lymphoma, Plasmacytoma, Paget Disease of the Breast, and Bone Marrow Aspiration. Dr. Graff is currently accepting new patients.