Joseph Barr, MD, Phd

Dr. Barr is a Medical Oncologist specializing in the treatment of breast cancer, with a special interest in breast cancer vaccines. He is also an Associate Professor of Medicine at the Case Western University School of Medicine

Dr. Barr graduated from University of Western Ontario, School of Medicine medical school in 1984 and completed fellowships at the University of Pittsburgh and Princess Margaret Hospital in Toronto and residencies at Wellesley Hospital University and St Michaels Hospital, also in Toronto.

Dr. Barr works for University Hospitals of Cleveland and sees patients at the Lake Health/University Hospitals Seidman Cancer Center in Mentor Ohio.


Medical Oncology


Breast Cancer

Board Certifications

Medical Oncology – American Board of Internal Medicine
Internal Medicine – American Board of Internal Medicine


University of Pittsburgh (1997)
Princess Margaret Hospital (1989)

Wellesley Hospital (1987)
St. Michaels Hospital (1986)

Internship, General Surgery
Cleveland Clinic (1989-1989)

University of Toronto – PhD in Immunology (1996)
University of Western Toronto, School of Medicine (Graduated 1984)



Fundraising efforts throughout the year help LH/UH Seidman Cancer Center continue to carry out our mission to provide world-class cancer care and oncology services to residents within driving distance of Mentor and Lake County.