The mission of Oncology/Hematology Associates of Saginaw Valley, P.C., its physicians and staff is to provide expert, quality and compassionate care to all patients in a safe and compliant environment. Physicians Certified in Hematology & Oncology. . Oncology. Hematology. Insurance plans: Blue Cross/Blue Shield of Michigan,Cofinity,Aetna,Private Healthcare Systems,HealthPlus,Medicaid,Medicare,Blue Care Network.