Taher, Sultan

Northwestern Medicine is proud to have five hospitals ranked among “America’s Best,” including Northwestern Memorial Hospital, the only Illinois hospital to be ranked No. 1 for 14 straight years, by U.S. News & World Report, 2025 – 2026. We are leading the quest for better care in the Chicago area and beyond. With more than 200 locations across Chicagoland, better care and better treatments are never far from home. To learn more, visit our website.

Ravi B. Patel, MD, MSc is a cardiologist at Northwestern Memorial Hospital. His practice focuses include heart failure with preserved ejection fraction, cardiac amyloidosis, cardiac sarcoidosis, and echocardiography. He is board certified in cardiovascular disease and internal medicine.

Dr. Helen G. Martin is a specialist in pulmonology and sleep medicine, affiliated with Northwestern Medical Group and serving patients at Northwestern Memorial Hospital in Chicago, IL. She is an assistant professor at the Feinberg School of Medicine and has extensive training, including a medical degree from the University of Illinois at Chicago and fellowships at McGaw Medical Center of Northwestern University. Dr. Martin is board-certified in internal medicine, pulmonary disease, and sleep medicine, ensuring a high standard of care for her patients. Her practice emphasizes patient education and the importance of discussing any potential conflicts of interest related to external professional relationships in the medical field. Generated from the website