The Permanente Medical Group (TPMG) is the largest medical group in the United States—and one of the most distinguished. Our 9,300 physicians and 40,000 nurses and staff are leading the transformation of health care. Through nation-leading quality, preeminent research, and superior technology systems, we are delivering superior clinical outcomes, and having a positive and often life-changing impact on the health of our 4.4 million patients in Northern California.