According to the American College of Physicians, “Fellows of ACP are a distinguished group of doctors dedicated to continuing education in medical practice, teaching or research. Fellowship is an honorary designation given to recognize ongoing individual service and contributions to the practice of medicine. Fellowship in ACP is a mark of distinction. It says that your doctor has made special efforts to be a better doctor. Ultimately, it says your doctor cares about delivering high-quality healthcare.”
According to its website, the ACP is the largest society in the world for specialists who provide nonsurgical medical care.