Michael Guignon, MD, is a board-certified Internal Medicine specialist who has been practicing since 2013. Dr. Guignon attended medical school at Southern Illinois University and completed his internship and residency at St. Louis University. Patients can see Dr. Guignon for a variety of conditions and treatments, including, but not limited to, hypertension, geriatrics, diabetes, dementia, depression, osteoporosis, coronary artery disease, hypothyroidism, and hyperthyroidism. Dr. Guignon's patient care philosophy centers on open communication between physician and patient. He makes sure to provide the highest level of attention and direct care to everyone he treats. Dr. Guignon's practice is a part of BJC Medical Group of Illinois, a well-established, multi-specialty physician group.