Constantine T. Frantzides

Bariatric Surgeon
Rating: 5.0 out of 5 with 562 ratings

Constantine T. Frantzides Bariatric Surgeon MD, PhD, FACS

Constantine T. Frantzides Bariatric Surgeon Picture

31 yr Experience

25 yr in Bariatrics

29 yr in Laparoscopic Surgery

19 yr in Laparoscopic Bariatrics

60% Practice is Bariatrics

Min Age of Patient is 15

Max Age of Patient is 75+

Biliopancreatic Diversion

Biliopancreatic Diversion with Duodenal Switch

Duodenal Switch

Fobi Pouch


Mini Gastric Bypass

and 3 more...

  • About Me

    Dr. Constantine T. Frantzides, Bariatric Surgeon

    Constantine T. Frantzides, MD, PhD, FACS is the director of the Chicago Institute of Minimally Invasive Surgery (CIMIS), Visiting Professor of Surgery at the University of Illinois in Chicago and staff member at St. Francis Hospital, Evanston IL.

    A former director and founder of the Minimally Invasive Surgery Center at the Medical College of Wisconsin in Milwaukee, Dr. Frantzides also served as the director of the Minimally Invasive Surgery Center and professor of surgery at the University of Chicago. He concurrently served as chairman of the department of surgery at Weiss Memorial Hospital, and later served as director of Minimally Invasive Surgery at Rush-Presbyterian-St. Luke’s Medical Center in Chicago and professor of surgery at Rush University. More recently, he served as director of the Minimally Invasive Surgery, director of the Minimally Invasive Surgery Fellowship Program at Northshore University Health System (formerly known as Evanston Northwestern Healthcare), and as professor of surgery at Northwestern University.

    Dr. Frantzides is a member of the American College of Surgeons, Society of Laparoscopic Surgeons, Society of University Surgeons, among others. He has been the chairman of the Bariatric Committee of the Society of Laparoscopic Surgeons since 2017.  He was also named an honorary member of the Brazilian Society of Surgery, the Hellenic Surgical Association, and the Greek Laparoscopic Society for his contributions and teaching of Minimally Invasive Surgery.

    Named to America’s Top Doctor by Castle Connolly every year since 2009, Dr. Frantzides has been recognized as a Top Doctor by the Chicago Magazine from 2012 to 2021, as well as a recipient of a Certificate of Excellence by US News & World Report from 2011 to 2021.  During his years at Northshore University Health System, the organization was named a Center of Excellence by the American College of Surgeons because of his high volume of procedures and excellent outcomes. He is also a two-time recipient of a Physicians Recognition Award by the American Medical Association, the recipient of a first Independent Research Award by the National Institutes of Health, and the winner of a Shipley Medal by the Southern Surgical Association. Much of Dr. Frantzides’ work has been supported by grants from the National Institutes of Health and the Surgical Industry.

    Dr. Frantzides has been highlighted in several editions of Who’s Who in America, Who’s Who in Medicine and Healthcare, Who’s Who in Science and Engineering, Who’s Who in the Midwest, and Who’s Who in the World since 1993.

    Laparoscopic Surgery Pioneer: Dr. Frantzides

    Dr. Frantzides is a pioneer and expert in laparoscopic surgery and is recognized globally for his work. His experience in laparoscopic gastrointestinal surgery is one of the most extensive in all of the U.S. He has traveled internationally to perform and teach laparoscopic operations, and was the first in the world to introduce and perform 15 different laparoscopic procedures. He has also worked extensively on the laparoscopic management of obesity, gastroesophageal reflux disease and hiatal hernia, incisional hernia, treatment of esophageal achalasia, and the laparoscopic treatment of benign and malignant diseases of the colon.

    Dr. Frantzides has developed a new, safer technique for the laparoscopic gastric bypass, called the “Triple Stapling Technique,” and was the first surgeon to define and publish the importance of preserving the Vagus nerve during a gastric bypass to avoid what is referred to as the “dumping syndrome”. Furthermore, he has published the largest series of laparoscopic revisions of failed bariatric procedures.

    Dr. Frantzides was the first in the world to conduct a randomized trial on laparoscopic mesh repair of large hiatal hernias, and introduced “The Frantzides Technique” for the treatment of esophageal high-grade dysplasia and Barrett’s esophagus and is the inventor of two surgical instruments used in surgery: an inflatable balloon retractor and “Atraugrip” grasping forceps. Notably, Dr. Frantzides created the first laparoscopic fellowship program in the U.S. in 1995 to train young surgeons in the art of minimally invasive surgery.

    Dr. Frantzides has published extensively in peer reviewed medical journals and he has also authored three books on laparoscopic surgery of which the “Atlas of Minimally Invasive Surgery” was the first ever published textbook with DVDs of the operations.

    For complete Curriculum Vitae please visit

    Bariatric Surgery in Chicago with Dr. Frantzides

    If you are exploring bariatric surgery in Chicago, Dr. Frantzides and the compassionate Chicago Institute of Minimally Invasive Surgery team are here to help! Specializing in minimally invasive techniques, Dr. Frantzides routinely performs the laparoscopic Roux-En-Y Gastric Bypass, Adjustable Gastric Banding, Gastric Sleeve, Biliopancreatic Diversion with Duodenal Switch, and bariatric surgery revisions. Dr. Frantzides performs surgery at St. Francis hospital which has a fully equipped state-of-the-art endo suite.

    For more information on bariatric surgery with Dr. Frantzides, you can request an appointment by filling out our online appointment form or calling us at (847) 676-2200.


    ** Some of the images may be graphic for some viewers **

    Awards, Certifications, & Diplomas


    ObesityHelp Contributing Author

    Laparoscopic Revision Surgery of Failed Bariatric Procedures
    Dumping Syndrome: What You Need to Know

  • Latest Reviews See all 562 reviews
    avatar Msmichi74 on March 25, 2020

    When you are pushing 400 pounds, like I was, life sucks. I failed miserably for years at losing weight and dieting. My marriage was falling apart, my parents were embarrassed of me, and I was short-tempered with my children. It was extremely difficult to climb More...

    avatar Yvette K. on Aug. 31, 2019

    DR. FRANTZIDES IS MY HERO! I am 17 YEARS post surgery and have kept all 110 pounds off that I lost within year after the above surgery. As I re-read my post....I am taken back to that time and am so grateful to have More...

    avatar Maxac34 on May 31, 2019

    I'm currently 6 months post-op gastric mini bypass from Dr. Frantzides. I am down 130 lbs and needless to say my life is changing daily for the better. I'm virtually off all my old meds. I'm more active than I've been More...

  • Location

    Chicago Institute of Minimally Invasive Surgery (Concourse Plaza/Tower II)

    4709 Golf Road
    Suite 1020
    Skokie, IL 60076

    Phone: 847-676-2200
    Fax: 847-676-1913

    Chicago Institute of Minimally Invasive Surgery

    512 McClurg
    Chicago, IL 60611

    Phone: 847-676-2200

    Chicago Institute Of Minimally Invasive Surgery (Concourse Plaza/Tower II)

    4709 Golf Road
    Suite 1020
    Skokie, IL 60076

    Phone: 847-676-2200
    Fax: 847-676-1813
The information on this page is presented as supplied by the indicated members of our community. does not monitor or edit this information.