Dr Muhammad Zaheer is a rheumatologist who treats patients with rheumatoid arthritis, psoriatic arthritis and systemic sclerosis. He uses the latest treatments in his practice, including arthrocentesis (joint aspiration) and intra-articular steroid injections (joint injections). Dr Zaheer’s primary research interest is rheumatoid arthritis. He is an assistant professor in the Department of Internal Medicine, Division of Rheumatology, at Saint Louis University School of Medicine. Dr Zaheer is a member of the American College of Rheumatology and American College of Physicians.