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  • Minimally Invasive Laparoscopic Surgery
  • Robotic-assisted Surgery
  • Colorectal Surgery
  • Hernia Surgery
  • Surgical Oncology
  • Endoscopic Procedures
  • Anti-reflux Surgery
  • Skin Cancer Surgery
  • Bariatric Surgery
  • Endovascular Surgery
  • Thoracic Surgery

Personal Info

Dr. Jassim is a Board Certified and Fellowship trained surgeon. He is a graduate of the University of South Dakota School of Medicine in Vermillion, South Dakota and received his general surgery training at Mayo Clinic in Phoenix, Arizona.  He completed his Postdoctoral Clinical Fellowship in Minimally Invasive Gastrointestinal Surgery and Bariatric Surgery at the Medical College of Wisconsin in Milwaukee, Wisconsin.

Dr. Jassim is also a Diplomate of the American Board of Surgery.  Certification as a Diplomate is voluntary and exhibits a surgeon’s dedication to continuous learning and providing superior care to patients.


His interests include robotic and laparoscopic general and GI surgery including surgery for GERD (acid reflux), hiatal hernia, paraesophageal hernia and achalasia, LINX Reflux Management System for GERD, and bariatric surgery, including Roux-en-Y gastric bypass, sleeve gastrectomy and revision surgery.  Dr. Jassim was one of the first surgeons in the area to perform the LINX procedure for reflux.

Education & Training

Medical School
University of South Dakota School of Medicine, Vermillion, South Dakota

Mayo Clinic, Phoenix, Arizona

Mayo Clinic, Phoenix, Arizona

Licensure & Certifications
  • License, Medicine and Surgery, State of Wisconsin
  • Diplomate of the American Board of Surgery
  • Fellow of the American College of Surgeons
Hospital Associations & Positions
  • ThedaCare Medical Center – Shawano, Shawano, WI
  • ThedaCare Medical Center – Neenah, Neenah, WI
  • ThedaCare Medical Center – Appleton, Appleton, WI
Associations, Memberships & Organizations
  • Society of American Gastrointestinal Endoscopic Surgeons
  • American Society for Metabolic and Bariatric Surgery
  • American College of Surgeons
  • American Foregut Society