Dr. Alexander Tosiou, MD is a Gastroenterology Specialist in Grayslake, IL. Dr. Tosiou has more experience with Esophageal Disorders and Gastrointestinal Disorders than other specialists in his area. He is affiliated with Northwestern Medicine Lake Forest Hospital. He is accepting new patients and has indicated that he accepts telehealth appointments. Be sure to call ahead with Dr. Tosiou to book an appointment.