Thomas W. Tomasik, MD

Northwestern Medicine is proud to have five hospitals ranked among Americas Best, including Northwestern Memorial Hospital, the No. 1 hospital in Illinois for 13 straight years (tie), by U.S. News & World Report, 2024 2025. 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.

Nitzet M. Velez, MD, is a highly regarded general surgeon affiliated with Northwestern Medicine, serving the Sycamore, IL area. With a strong focus on various surgical specialties including abdominal, breast, colorectal, and laparoscopic surgery, Dr. Velez is dedicated to delivering compassionate and personalized care to her patients. Her proficiency is underscored by a commendable patient satisfaction rating of 4.9 stars, reflecting her attentive bedside manner and thorough communication skills. Fluent in Spanish and backed by her medical training from the University of Wisconsin Madison, Dr. Velez strives to ensure a positive patient experience while addressing complex medical needs. 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.