Dr. O'Brien graduated from the University of Rochester School of Medicine and Dentistry in 1989. He works in Cleveland, OH and 1 other location and specializes in Hematology/Oncology. Dr. O'Brien is affiliated with MetroHealth Medical Center and University Hospitals Case Medical Center.
Medical School: University of Rochester School of Medicine and Dentistry; Graduated 1989
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*This physician has multiple office locations. See Office Information for details.