Jessica Therien, NP

Mei Huang, MD, PhD, is a board-certified gastroenterologist (GI) who sees patients 18 and older. She specializes in women’s GI health and treats conditions including acid reflux disease, swallowing problems, inflammatory bowel disease, irritable bowel syndrome, and Crohn's disease. She performs colonoscopies for colon cancer screenings, endoscopic ultrasounds, esophageal dilations, and small bowel enterostomies. Dr. Huang is committed to providing exceptional quality care and exceeding her patients’ expectations. She listens to their concerns, performs thorough evaluations, and works with her patients to create personalized treatment plans. This practice is part of BJC Medical Group of Illinois.

Michael Messmer, DO, is a board-certified primary care sports medicine physician specializing in nonoperative sports medicine who sees patients eight years and older. He provides nonsurgical treatment of sports-related injuries, including performing musculoskeletal diagnostic ultrasounds, ultrasound-guided injections, regenerative injections and treatments. Conditions he treats include fractures, tendon and ligament injuries, arthritis and muscle and joint pain. Dr. Messmer focuses on diagnosing and managing injuries and illnesses that can affect the performance of individuals and athletes. This practice is a part of BJC Medical Group of Illinois.