An Atlanta spine surgeon who sometimes works as an expert witness in personal injury cases has sued a former patient and his lawyers, claiming they stiffed him on $200,000 in medical bills after netting a $700,000 jury award.

The complaint filed Monday by Dr. James Chappuis, founder and CEO of Orthopaedic & Spine Surgery of Atlanta, said he’s owed $205,323 for more than two years of treatment provided to Shin Cho. Chappuis also testified as an expert witness at Cho’s trial.