Dr. Colin Edward Diffie, MD

Dr. Colin Diffie specializes in rheumatology and internal medicine, bringing 12 years of experience to his practice. He earned his medical degree from McGovern Medical School at the University of Texas Health Science Center at Houston and completed his residency at Barnes Jewish Hospital/Washington University. His dual specialty training allows him to provide comprehensive care for complex autoimmune and inflammatory conditions.

Dr. Diffie practices at multiple locations throughout Saint Louis, including Barnes Jewish Hospital, Christian Hospital, Missouri Baptist Medical Center, and Barnes Jewish West County Hospital in Creve Coeur. He focuses on treating conditions such as systemic lupus erythematosus and depression. His expertise includes performing specialized procedures like home infusion therapy and immunology testing, along with monitoring inflammatory markers through C-reactive protein testing to track disease activity and treatment response.