Dr. Campbell is a board certified Otolaryngologist and a Head and Neck Cancer Surgeon. Since completing his fellowship at M.D. Anderson Cancer Center, he has been a leader of the MCW Multidisciplinary Head and Neck Cancer Program of the Froedtert Cancer Center. He evaluates patients with tumors of the oral cavity, throat, sinuses, voice box, thyroid, and neck. He coordinates cancer care and performs any necessary surgery. His practice also includes other benign abnormalities and voice problems. His research has focused on Quality of Life issues in Head and Neck Cancer survivors. He has been recognized in both the National and Midwest editions of The Best Doctors in America, as well as being listed as one of the top physicians in Milwaukee Magazine. He also has an academic appointment in Bioethics and Medical Humanities.

His thoughts about cancer, patient care, and life can be found at Reflections in a Head Mirror .