Denver Post file photoDr. Gary Weiss sold his Vail practice while involved in disciplinary proceedings with the Colorado Medical Board. Two local women may be among many who say they were misdiagnosed with multiple sclerosis. A former Vail neurologist surrendered his Colorado medical license amid allegations that he misdiagnosed a multiple sclerosis patient and botched her treatment before she died of complications. But the doctor, who now is accused of falsely diagnosing nearly two dozen others in Colorado with MS — using an MRI machine he owned but whose results he allegedly was unqualified to interpret — continues to run a thriving medical practice in Florida caring for patients suffering with MS. Two federal malpractice lawsuits were filed in Denver U.S.