Northwestern Surgical Associates will be closing its practice on July 31, 2023. Dr. Mark Toyama will be retiring from surgical practice. Dr. Jeffrey Fronza will be relocating his practice to Central DuPage Hospital starting October 1st 2023. Click here to learn more!

Contact Us | Northwestern Surgical Associates of Chicago, IL

Northwestern Surgical Associates


676 North Saint Clair St Suite 1525
Chicago, IL 60611
312.695.9393

Location Map: 676 North Saint Clair St Chicago, IL 60611
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Office Hours

8:30am - 5:00pm

Get in Touch with Us

Our doctors and staff are devoted to our patients and are committed to providing quality patient care on all levels.

Call us or visit us at any time to learn how we can help you!

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Please include non-medical questions and correspondence only.

Contact Our Doctors

Dr. Jeffrey S. Fronza
Assistants - Cindy Ngoon, Alma Scanlon

Dr. Mark T. Toyama
Assistant - Connie Akins

Dr. Daniel Davila has changed practices and is no longer with Northwestern Surgical Associates. He can be reached at his new office.

847.234.4310

800 N. Westmoreland Road
Suite 100
Lake Forest, IL 60045

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