The Adena Center for Advanced Cancer Treatment > About our Physicians








Meet our Oncology and Hematology Physicians:
Mid-Ohio Oncology/Hematology
4439 State Route 159, Suite 260
Chillicothe, OH 45601
740-779-7589 Fax: 740-779-7871
Toll free: 800-228-7589


Mark Knapp, MD, received his training in oncology/hematology at University of Cincinnati College of Medicine.






Ralph Roach, MD, received his training in oncology/hematology at Medical College of Ohio, Toledo.






Joseph M. Wang, MD
Oncologist