Gateway Spine & Pain Physicians earns AAAASF accreditation for patient safety. Bolingbrook, IL — Gateway Spine & Pain Physicians in Bolingbrook, IL has demonstrated its commitment to patient safety by gaining accreditation from the American Association for Accreditation of Ambulatory Surgery Facilities (AAAASF).Our Team‧Locations‧Patient Information‧Conditions‧Treatments‧News/Blog.