Oxford Valley Cardiology. Ranga A. Rao, M. D., F.A.C.C. Srinivas S. Atri, M. D., F.A.C.C. Mohammed Murtaza, M. D., F.A.C.C. Practice limited to cardiology. EECP treatment offered. Cardiology Certified American Board Internal Medicine. New patients welcome. most insurances accepted.