Ross C Peterson, MD

Dr. Scott cares for patients with multiple sclerosis, neurosarcoidosis, and transverse myelitis. He has a clinical interest in multiple sclerosis and is experienced at EEG procedures. He received medical student teaching awards from both Drexel University and Temple University as well as research awards from the Journal of Multiple Sclerosis and the Keystone Chapter of the National Multiple Sclerosis Society. He speaks French and English.

Rebecca K. Marcus, MD Rebecca K. Marcus, MD, is a surgical oncologist with the AHN Surgical Institute, who specializes in the treatment of cancer. She provides personalized care for patients with primary and metastatic tumors of the digestive tract and abdomen, including, gastric, colorectal, pancreatic, and hepato-pancreato-biliary diseases. She also cares for patients with skin and soft tissue malignancies, including rarer tumors such as sarcoma and neuroendocrine tumors. Dr. Marcus is a Midwest native. She received her college degree, as well as completed her medical training, at the University of Minnesota in Minneapolis. She attained her general surgery training at the Medical College of Wisconsin in Milwaukee. During her residency, she spent three years at the MD Anderson Cancer Center in Houston, Texas completing a surgical oncology research fellowship. Most recently, Dr. Marcus completed her surgical oncology fellowship as part of the Donald L. Morton, MD Complex General Surgical Oncology program at St. John’s Cancer Institute in Santa Monica, California. Dr. Marcus prioritizes patient-centered, individualized care planning in her practice. She emphasizes the use of minimally invasive approaches, including robotic surgery and oncoplastic techniques whenever possible. As part of the AHN team, she strives to provide innovative treatment options to all patients with cancer through translational research and clinical trials. Dr. Marcus is certified by the American Board of Surgery. She is actively involved with multiple national organizations including the American College of Surgeons, Society of Surgical Oncology, and the Americas Hepato-Pancreato-Biliary Association. She sees patients ages 18 and older.

Dr. Koradia is an interventional and structural cardiologist who treats patients with coronary artery disease, structural cardiovascular disease, venous thromboembolism and peripheral vascular disease. He is clinically interested in management of acute myocardial Infarction, cardiogenic shock, valvular heart disease and pulmonary embolism. He is skilled and experienced in performing complex coronary interventions, Transcatheter Aortic Valve Replacement (TAVR), Left Atrial Appendage Closure ('Watchman' procedure) and peripheral arterial and venous interventions. He is also an adjunct clinical assistant professor - Internal Medicine/Cardiology at Lake Erie College of Osteopathic Medicine in Erie, Pennsylvania. He received his medical degree from B.J. Medical College in Ahmedabad, Gujarat, India. His internal medicine residency was completed at Coney Island Hospital in Brooklyn, New York. He also finished a fellowship in cardiovascular disease and a fellowship in interventional cardiology at Maimonides Medical Center in Brooklyn. He is certified by the American Board of Internal Medicine for cardiovascular disease and interventional cardiology. He is certified by National Board of Echocardiography and Certification Board of Nuclear Cardiology. He is also certified as Registered Physician in Vascular Interpretation.