The Oklahoma Clinical P.E.T. Center At Deaconess George N. Chacko, M.D., Medical Director 5401 N. Portland Suite 330 Oklahoma City, OK 73112 Click here to get directions from your location    The Oklahoma Clinical P.E.T. Center At Silver Crossing George N. Chacko, M.D., Medical Director 8224 Silver Crossing Oklahoma City, OK  73128 MAP COMING SOON!  Click here to get directions from your location      The Oklahoma Pet Center in Lawton 5410 S.W. Lana Dr. Lawton, OK 73505 Click here to get directions from your location