Leading the future of health care   Kaiser Permanente / The Permanente Medical Group The Permanente Medical Group, Inc. (TPMG - Kaiser Permanente Northern California) is one of the largest medical groups in the nation with over 9,500 physicians, 22 medical centers, numerous clinics throughout Northern and Central California and a 75-year tradition of providing quality medical care.   NUCLEAR MEDICINE PHYSICIANS Oakland/Richmond, Sacramento/Roseville, Santa Clara, and Walnut Creek, California   Our dynamic, state-of-the art practice provides a full spectrum of diagnostic imaging services (including PET/CT with multiple tracers