News

INTEGRIS Heart Hospital Welcomes New Physicians

Marshall BellMarshall Bell, M.D., is a cardiothoracic surgeon. He is an Oklahoma native, who completed his undergraduate degree at Oklahoma State University. He earned his medical degree from the University of Oklahoma College of Medicine. Bell went on to complete his general surgery residency at the University of Colorado School of Medicine, where he also completed both Cardiothoracic Surgery and Basic Science Research fellowships. 



Jered CookJered Cook, M.D., is an invasive cardiologist. He earned his medical degree from Ross University School of Medicine before completing his internal medicine internship at New York Downtown Hospital and his residency at Northwell Health-Lenox Hill Hospital in New York City. Cook completed his cardiac imaging fellowship at St. Francis Hospital in Roslyn, N.Y. and his cardiovascular disease fellowship at the University of Toledo Medical Center, where he served as chief fellow. 



Christine DiEnna, D.O., M.B.A., is an invasive cardiologist. She earned her Doctor of Osteopathic Medicine from Oklahoma State University College of Health Sciences. She then went on to complete her Internal Medicine Residency at Largo Medical Center in Largo, Florida. Later, she completed her Cardiovascular Disease Fellowship at Mercy Medical Center North Iowa. DiEnna returned home to Oklahoma and practiced cardiology for several years before joining INTEGRIS Heart Hospital.