RCCA is one of the largest oncology physician networks in the United States. The Howell branch has a staff of four physicians: Kenneth D. Nahum, D.O., F.A.C.P, Randi J. Katz, D.O., Raghu K. Kunamneni, M.D. & Ethan Wasserman, M.D., all are committed to ensuring patient access to the highest quality, most comprehensive, cutting-edge treatments in a compassionate and community-based setting.