Medicare Part B (Medical Insurance) covers manual manipulation of the spine by a chiropractor or other qualified provider to correct a vertebral subluxation (when the spinal joints fail to move properly, but the contact between the joints remains intact). Medicare doesn't cover other services or tests a chiropractor orders, including X-rays, massage therapy and acupuncture (unless the acupuncture is for the treatment of chronic low back pain).  Some Medicare Advantage plans may provide additional chiropractic care.