Stephen J. Zimmermann, MD, is an internal medicine doctor with Ascension Sacred Heart in Niceville, FL. He provides personalized primary care for conditions that affect adults as they age. Dr. Zimmermann listens to understand you and your health concerns. He takes the time to get to know you and your family's health history. Then, Dr. Zimmermann works with you to create a personalized care plan for your long-term health and well-being.