About Dr. Gyu Gang,
Heart Valve Surgeon

Hello! My name is Dr. Gyu Gang and I am a cardiac surgeon having graduated from Johns Hopkins University School of Medicine in 1997. To date, I have performed approximately 3,250 cardiac surgeries, of which 1,625 involved heart valve procedures. I regularly perform surgery at hospitals including Central DuPage Hospital and Northwestern Memorial Hospital. Read more...

216 Patient Reviews for
Dr. Gang

"Dr. Gang is a highly professional surgeon. He clearly explains what needs to be done. I wanted the best surgeon to repair my mitral valve and I believe he did a wonderful job. Dr. Gang came to my hospital room several times to see how I was doing after surgery. Thank you for your expertise."

-- Jim Dilillo, Mitral Valve, Valve Repair, Median Sternotomy, Maze Procedure, 10/21/2025

"Dr. Gyu Gang and his entire team were extraordinary. It started with my evaluation after being admitted to another hospital with atrial flutter. They walked me through the evaluation process and explained in detail what needed to be done, how it would be accomplished, what to expect post surgery, and how long I would need to be in ICU followed by a stay on the cardiac floor before going home.

I went home 7 days post-surgery and was followed-up by Dr. Gang and his team as well as my new cardiologist and her team who were closely coordinated to ensure my care would be seamless.

All in all, I would not wish my condition or what was needed to "fix" me on anyone. That being said, the professional skills, and personal care that Dr. Gang and his team bestowed on me before, during the procedure (although thankfully I was sound asleep for that part), through the first 5 weeks of my post-operative care, made everything feel natural, smooth and comforting.

If you ever find yourself in a position like mine, I highly recommend Dr. Gang and his team as well as the entire team at Northwestern Medicine Central DuPage Hospital.

I continue to improved daily and I am returning to my normal routine more everyday. Thank you Dr. Gang and your wonderful team. You have given me back my life and I intend to make damn good use of it moving forward."

-- Jeffrey Marx, Mitral Valve, Valve Replacement, MitraClip, Maze Procedure, 10/13/2025

> See 214 more patient testimonials

My Specialities &
Clinical Interests

My heart surgery specialties include:

  • Complex mitral valve repairs
  • Aortic valve replacements including TAVR
  • Arterial coronary artery bypass grafts

Education, Training & Certificates

Dr. Gyu Gang, heart surgeon, graduated from Johns Hopkins University School of Medicine in 1997.

After medical school, Dr. Gang completed a General Surgery Residency at the University of Cincinnati in 2004 and a Cardiothoracic Surgery Residency at Northwestern Memorial Hospital in 2007.

Dr. Gang is a fellow of the American College of Surgeons and is board-certified by the American Board of Thoracic Surgery.

Schedule Appointment
with Dr. Gyu Gang, MD

To schedule an appointment with Dr. Gang, you can:

The office of Dr. Gang is located at 25 N. Winfield Road, Winfield, IL 60190. To get driving directions to this office, please click the map below.



> Click for driving directions to Dr. Gang’s office.

Page last updated: December 10, 2025