Dr. Flickinger is certified by the American Board of Internal Medicine in both internal medicine and rheumatology. He is a member of the American College of Rheumatology and the Georgia Society of Rheumatology.
His clinical interests include rheumatoid arthritis, spondyarthropathies (psoriatic arthritis, anklyosing spondylitis, reactive arthritis, enteropathic arthritis), vasculitis, antiphospholipid syndrome, crystalline arthropathies (gout and psuedogout), and osteoporosis. He has a particular interest in the autoimmune connective tissue diseases (system lupus erythematosis, systemic sclerosis or scleroderma, dermatomyositis, polymyositis, mixed connective tissue disease and sjogren’s syndrome). He also participates in clinical trials.