Providers

Barry S. Rosen MD, FACSBarry S. Rosen MD, FACS

Dr. Rosen is a 1983 graduate of the University of Illinois and a 1987 graduate of Northwestern Medical School.  He completed his surgical training at the University of Illinois in 1992 and has been in practice in the Northwest Suburbs since then. Dr. Rosen’s practice is limited to breast surgery exclusively

David P Ondrula MD, FACS, FASCRSDavid P Ondrula MD, FACS, FASCRS

Dr. Ondrula is a 1984 graduate of the University of Illinois and a 1988 graduate of University of Illinois College of Medicine. He completed his surgical training at the Metropolitan Group Hospitals in 1990, his colorectal surgery training in 1995, and he has been practicing in the Northwest Suburbs since then.

Gia M Compagnoni MD, FACSGia M Compagnoni MD, FACS

Dr. Compagnoni is a 1990 graduate of Notre Dame and a 1994 graduate of Northwestern Medical School. She completed her surgical training at Mcgaw Medical Center of Northwestern University Medical School in 1999 and has been practicing in the Northwest Suburbs since then. Her areas of interest include breast (cancer) surgery and minimally invasive surgery.

Hsin-Yi Chang, MDHsin-Yi Chang, MD, FACS

Dr. Chang is a 1997 graduate of Northwestern University and a 2002 graduate of University of Illinois College of Medicine. She completed her surgical training at the Medical College of Wisconsin in 2008 and has been working at Advanced Surgical Care since 2009. Her areas of interest include bariatric (weight loss) surgery and minimally invasive surgery.

John Cheregi, MDJohn Cheregi, MD

Dr. Cheregi is a 2007 graduate of Rosalind Franklin University of Medicine. He completed his surgical training at the University of Illinois in 2012 and his fellowship in Advanced Laparoscopy and Bariatric Surgery in Iowa City, IA in 2013. Dr. Cheregi has a passion for helping patients and understands the medical complexities behind obesity. He uses a personalized approach with each patient, ensuring they receive individualized care and helps them choose the weight loss procedure that will be most effective. Patient goals and input are very important in decisions made about weight loss surgery. Dr. Cheregi’s goal is that each patient lives life to the fullest and he is passionate about helping patients remove their weight as an obstacle. He motivates and supports his patients to make the lifestyle changes for long-term success. You can expect to receive Dr. Cheregi’s Commitment, Dedication, and Devotion for all of his patients.