Z. Ted Lorenc, MD

Syed W. Haider, MD, affiliated with Northwestern Medicine Regional Medical Group, specializes in internal medicine and hospital medicine in Crystal Lake, IL. Highly rated by patients, Dr. Haider is recognized for his exceptional care, attentiveness, and comprehensive approach to patient needs. With a medical education from the University of Health Sciences Antigua School of Medicine and numerous patient reviews commendatory of his compassionate practice, Dr. Haider ensures a personalized healthcare experience, fostering lasting relationships through open communication and thorough evaluations. He is board-certified by the American Board of Internal Medicine, reflecting his commitment to maintaining high standards in patient care. Generated from the website

Gary L. Reschak, MD is a highly rated pediatrician affiliated with Northwestern Medicine Regional Medical Group in Crystal Lake, IL. With a strong focus on acute and preventive care, as well as specialty areas like adolescent medicine and travel medicine, Dr. Reschak provides compassionate healthcare tailored to children's needs. The practice is renowned for its exceptional patient care, evidenced by a stellar rating of 4.9 stars from over 665 patient reviews. Dr. Reschak is recognized for his thoroughness, attentiveness, and ability to create a comfortable environment for both children and their parents. Generated from the website

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.