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UNIQUE TREATMENTS ONLY AVAILABLE AT

Northwestern Surgical
Associates

UNIQUE TREATMENTS ONLY AVAILABLE AT

Northwestern Surgical
Associates

EXCEPTIONAL CARE ON THE

EXCEPTIONAL CARE ON THE

Magnificent Mile

Magnificent Mile

FLEXIBLE SCHEDULING & QUICK APPOINTMENTS FOR

FLEXIBLE SCHEDULING & QUICK APPOINTMENTS FOR

Your Convenience

Your Convenience

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EXCEPTIONAL CARE ON THE

Magnificent Mile

Our Services

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HERNIA SURGERY

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GALLBLADDER SURGERY

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BARIATRIC SURGERY

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ROBOTIC SURGERY

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REFLUX SURGERY

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COLORECTAL SURGERY

WELCOME TO

Northwestern Surgical Associates

Northwestern Surgical Associates (NSA) is a multispecialty surgical practice affiliated with Northwestern Memorial Hospital and Northwestern University’s Feinberg School of Medicine. Our surgeons have been in practice at and have been on the teaching faculty of Northwestern Memorial Hospital for over 50 years. NSA surgeons have repeatedly been named “Top Doctors” by Castle- Connoly, Chicago Magazine, and other professional organizations. We are committed to continuing our tradition of exceptional care for the residents of Chicago, the outlying suburbs, and beyond.

Our small group model allows us to focus on the individual patient whose well- being guides all decisions. This results in an expedited work-up and treatment of your surgical condition. We believe that an educated and empowered patient is the best partner in this process. Patients are treated with the same respect and compassion as a member of our family. Our staff prides itself on providing professional, personalized, and prompt service. We are highly visible and intensely involved in our patient's care from the preoperative consultation through postoperative visits.

What Our Patients Say

Dr. Fronza and his admin Cindy have been nothing short of amazing. He was super attentive and responds usually within a matter of hours to any email questions (even now more than a year later). The entire practice has been good for/to me as one of the other surgeons in this group took out my gallbladder years ago. I would and have recommended him and Northwestern Surgical Associates to friends and family. - Katy P.

I had hernia surgery with Dr. Willson H. Hartz. From the start of the initial conciliation, the day of surgery, and the final follow visit, Dr Hartz was always a very professional, compassionate, competent Doctor. I would recommend any of my family or friends to him. - Bruce R.

Dr. Davila performed my recurrent hernia repair with a robotic procedure in December 2019. He was professional, thorough, and was able to perform the procedure a week after my consultation. Most importantly, I had no real pain, just pressure and soreness. I went out to dinner the next night and was back to work three days later. Couldn't be happier with the outcome and would recommend him to anyone. The guy is excellent at his craft. - Todd K.

"I have been a patient of Dr. Stryker for over 30 years and cannot say enough about the excellent care and treatment I have received. He is an excellent and extremely talented surgeon who cares for his patients. He has always been available to contact and answer any questions and concerns I may have. I have moved out of state but travel back to see him as I have total trust in his treatment of me. I cannot say enough positive things about my treatment and experience with him and his office." - Anthony B.

"Dr. Toyama saved my life and I will forever be grateful. He is extremely intelligent, kind, helpful, and explains every detail of what will happen during surgery and recovery. I would not have seen my daughters grow up nor the joy of being a grandmother if not for the superb work of Dr Toyama. He is amazing." - Cindy S.

Get the Latest

Stay informed with office news and the newest
procedural techniques by reading our blog and following us on Instagram!

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The Joy of Giving – Guatemala 2020

This year Drs. Fronza, Toyama, and Hartz returned to Guatemala on our annual surgical mission trip. The team of 42 nurses, doctors, translators, physical therapist, and administrative staff performed 65 general surgery cases, including 35 hernia repairs, 8 breast surgery cases, and 19 laparoscopic cholecystectomies. Our gynecologists performed 8 hysterectomies and several minor procedures. We …

The Joy of Giving – Guatemala 2020 Read More »

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Our Practice

NSA has clinical expertise in complex gastrointestinal disorders and cancer, breast cancer, abdominal wall hernias, bariatric surgery, colorectal surgery, robotic surgery, and surgical oncology. We utilize minimally-invasive and other advanced surgical approaches. This allows our patients to resume normal activity in the shortest time possible, while maintaining superior cosmetic, functional, and oncologic outcomes. See the services we offer.

NSA has earned and maintained a reputation in the Midwest for treating complex surgical diseases and welcomes patients seeking a thoughtful opinion. We work closely with your local physician to ensure seamless care across health systems and states.

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COVID19 Update: We Are Fully Open | Telehealth Appointments Available   Learn More »
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