PM-ME-BIRDS

Thank you so much for your advice!

My Fiancé has been hit by two cars in his lifetime, has bouts of back pain, pinched nerves, hip pain and other related impairments long after his initial injuries. He's in too much pain to stand for long periods of time so can only work part-time, and has been out of work for over a year. However he hasn't been to a Doctor about his chronic pain due to not having health insurance. If he went to a Doctor to get assessed would he be a good candidate for attempting to file a SSDI claim?