Dr. Jennah Siwak

Jennah Siwak, MD, is a dual board-certified family medicine physician and obesity medicine specialist. She serves as an attending physician with Carle Health, where she provides comprehensive primary care and metabolic health management. Her clinical focus includes preventive family medicine, medical weight management and nutrition, and women’s preventive care. Her scholarly interests center on obesity medicine, cardiometabolic health, and public health communication related to evidence-based treatment and patient education. Dr. Siwak earned her medical degree from the University of Illinois College of Medicine and completed her residency at the Northwestern McGaw Family Medicine Residency at Lake Forest Hospital, Northwestern University Feinberg School of Medicine. Her practice is grounded in compassionate, individualized, evidence-based care that supports long-term health and wellness.