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Specialists

Bariatric Surgeons

Ervin W. Denham, MD, FACS
Director, Minimally Invasive Surgery
Division Director, General Surgery		 Ervin W. Denham, MD, FACS 
Stephen P. Haggerty, MD, FACS
 		 Stephen P. Haggerty, MD, FACS 
Michael Ujiki, MD  Michael Ujiki, MD 

John G. Linn, MD

 John G. Linn, MD
Constantine Frantzides, MD, Ph.D., FACS
 		 Constantine Frantzides, MD, PhD, FACS 
 

Physicians listed are either employed by NorthShore University HealthSystem or are private practice physicians who maintain medical staff privileges at hospitals affiliated with NorthShore University HealthSystem. For assistance, please call the NorthShore University HealthSystem Physician Referral Service at 847.570.5020.