W. Charles Conway M.D. Peritoneal surface malignancies, complex oncologic surgeries Ridley-Tree Cancer Center 540 W Pueblo St, Santa Barbara, CA 93105 (805) 879-0670 www.sansumclinic.org Surgical oncologist W. Charles Conway joined Ridley-Tree Cancer Center in Santa Barbara, California, in 2017, as the director of surgical oncology. Get Financial Assistance for Treatments