Like other physicians, anesthesiologist earned a college degree and then completed four years of medical school.
They spent four more years learning the medical specialty of anesthesiology and pain medicine during residency training. Many anesthesiologists who specialize in pain medicine receive an additional year of fellowship training to become a "sub specialist," or an expert in treating pain.
Some also have done research, and many have special certification in medicine through the American Board of Anesthesiology (ABA)
The ABA is the only organization recognized by the American Board of Medical Specialties to offer special credentials in pain medicine.