Oklahoma Oncology physicians are all board certified, specializing in the treatment of cancer. For more information about each of our doctors, select from the list below.   G. Lance Miller, MD Joseph P. Moore, MD Vicki C. Baker, MD, MPH Joseph P. Lynch, MD Ravikumar Vasireddy, MD Jennifer E. Trottman, MD Leslie K. Walker, MD John L. Eckenrode, MD Paul E. Zorsky, MD Click here to access a list of our office locations and physicians practicing at those locations.