Dr. Gregory P Warren MD Hematologist

Dr. Gregory Warren is a hematologist in Cleveland, Ohio and is affiliated with multiple hospitals in the area, including St. John Medical Center and University Hospitals Case Medical Center. He received his medical degree from University of Toledo College of Medicine and has been in practice for 25 years. He is one of 7 doctors at St. John Medical Center and one of 29 at University Hospitals Case Medical Center who specialize in Hematology.

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Office Location

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Specialty & Clinical Interests

Hematologist: General Hematology

Hospital Affiliation

University Hospitals Case Medical Center
Ranked #18 in Cancer

St. John Medical Center

Education & Medical Training

Vanderbilt University
Residency, Internal Medicine, 1989–1992

Indiana University School of Medicine
Fellowship, Hematology/Oncology, 1992–1995

University of Toledo College of Medicine
Class of 1989

Certifications & Licensure

American Board of Internal Medicine
Certified in Hematology

American Board of Internal Medicine
Certified in Internal Medicine

American Board of Internal Medicine
Certified in Medical Oncology

OH State Medical License
Active through 2015


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