Bradley P. Grayum, MD, is a graduate of Hahnemann Medical School and the NYU/Bellevue neurology residency program, and completed a fellowship in neuromuscular disease at Downstate Medical Center. He is board-certified, with added qualifications in vascular neurology, and is certified in electrodiagnostic medicine through the American Board of Electrodiagnostic Medicine.

With an active practice focusing on neuromuscular disease, Dr. Grayum also served as director of the stroke program during a long career at Crozer Chester Medical Center, participating in many clinical stroke trials. Since recently coming to Cooper, he maintains an interest in both stroke and neuromuscular disease and has been acknowledged as “Top Doc” several times by various local publications, including Philadelphia Magazine.

Dr. Grayum brings enthusiasm and experience as an instructor to our residents. He was named Educator of the Year at Crozer Chester Medical Center in 2012 and received a teaching award from Drexel University in 2014.

Christina J. Gutowski, MD, MPH, is an attending orthopaedic oncologist at Cooper University Health Care. She joined the Cooper Department of Orthopaedic Surgery after completing her surgical fellowship at Memorial Sloan-Kettering Cancer Center in New York, NY.

She serves as one of the surgeons at the multidisciplinary Orthopaedic Oncology Center at Cooper, supported by MD Anderson Cancer Center at Cooper, as well as the Cooper Bone and Joint Institute. Her special interests and clinical focus include benign and malignant bone and soft tissue tumors, limb salvage and reconstruction, metastatic bone disease, and complex joint arthroplasty. She also holds a position on the academic staff of Cooper Medical School of Rowan University.

Dr. Gutowski received her medical degree from Rutgers-New Jersey Medical School in Newark, NJ, where she achieved AOA status. She achieved a Masters in Public Health, with a focus in Health Policy and Management, from the University of California-Berkeley during her medical training. She then completed her surgical internship and orthopaedic surgery residency at Thomas Jefferson University Hospital in Philadelphia, PA. Dr. Gutowski completed a clinical fellowship in orthopaedic oncology at Memorial Sloan-Kettering Cancer Center prior to joining the staff at Cooper. 

She is a board member of the Philadelphia Orthopaedic Society, and a Diplomate of the American Board of Orthopaedic Surgery. She is also an active member of the American Orthopaedic Association, Musculoskeletal Tumor Society, Ruth Jackson Orthopaedic Society, New Jersey Orthopaedic Society, and Eastern Orthopaedic Association.​

Kelsey Hall, MS, is a Medical Physicist at the MD Anderson Cancer Center at Cooper. She earned her MS from the University of Pennsylvania and completed residency at Cooper University Hospital in 2023.