Dr. Tiesenga is an award-winning board certified bariatric surgeon who is passionate about helping individuals achieve a healthier lifestyle. His success stems from the desire to innovate breakthrough procedures such as Single Incisions Laparoscopic Surgery (SILS) and robotic surgery. Dr. Tiesenga continual innovation helps find better and more efficient practices to make it easier for patients.
HOSPITAL AFFILIATIONS
West Suburban Hospital Medical Center, Oak Park, IL
Westlake Hospital, Melrose Park, IL
Presence Resurrection Medical Center, Chicago, IL
Rush Oak Park Hospital, Oak Park, IL
Elmhurst Surgery Center, Elmhurst, IL
Oak Park Wound Care, Oak Park, IL
Presence Our Lady of the Resurrection, Chicago, IL
Presence Saints Mary and Elizabeth Medical Center, Chicago, IL
9/11-Present Board Member, Illinois Association of Bariatric Surgeons
5/11-Present Affiliate Faculty, Department of Surgery, Loyola University
12/7/10 Recipient of Ken Douglas Award, West Suburban Medical Center
11/10-Present Director of Minimally Invasive and Bariatric Surgery, Our Lady of Resurrection Hospital
2010-Present Vice Chairman of Surgery, West Suburban Hospital
2010-Present Director of Minimally Invasive and Bariatric Surgery, Westlake Hospital
2010-Present Allergan Proctor for Lap Band
2010-Present Chairman, Department of Surgery, Westlake Hospital
2009-Present Covidien Midwest Trainer for SILS
2005-Present Director of Bariatric Surgery, West Suburban Hospital
2003-Present Affiliate Surgeon of American Society of Bariatric Surgeons
2003-Present US Surgical Proctor for Bariatric Surgery
2002-Present Vice President New Hope Surgical Weight Loss Center
2002-2004 Vice Chairman, Dept. of Surgery, Westlake Hospital
MORE ABOUT DR. TIESENGA
I strive to give my patients individualized attention and care. My goal is to give hope to my patients who have been affected physically, mentally, and emotionally by morbid obesity
Alexander Knijnikov, D.O.
Dr. Knijnikov is fellowship trained in all aspects of bariatric surgery including the latest advanced minimally invasive laparoscopic and robotic techniques. He has a passion for helping patients achieve their weight loss goals and will see them through their entire journey.
HOSPITAL AFFILIATIONS
Westlake Hospital, Melrose Park, IL – August 2016 – Present
West Suburban Medical Center, Oak Park, IL August 2016 – Present
Community First Medical Center, Chicago, IL August 2016 – Present
Presence Resurrection Medical Center, Chicago, IL August 2016- Present
Advocate Good Samaritan Hospital, Downers Grove, IL August 2016 – Present
Rush Oak Park Hospital, Oak Park, IL August 2016 – Present
EDUCATION & RESIDENCY
Flushing Hospital Medical Center, Flushing, NY, Chief Surgical Resident, 2014 – 2015
Flushing Hospital Medical Center, Flushing, NY, General Surgery Resident, 2012 – 2014
Peninsula Hospital Center, Far Rockaway, NY, General Surgery Resident, 2010 – 2011
NY College of Osteopathic Medicine (NYCOM), Doctor of Osteopathic Medicine – 2010
Brooklyn College, B.S. in Biology – 2005
FELLOWSHIP
Minimally Invasive, Bariatric, and Robotic Surgery, Winthrop University Hospital, Mineola, NY 2015 – 2016
RESEARCH
National Clinical Assembly, American College of Osteopathic Surgeons – Boston, MA – Presentation – Non-operative management of splenic laceration following routine colonoscopy – 09/2014
National Clinical Assembly, American College of Osteopathic Surgeons – Chicago, IL – Presentation – Rare case of SBO due to incarcerated stomach contained in inguinal hernia – 10/2012
American College of Surgeons/Nassau Surgical Society Conference – Long Island, NY – Presentation – Rare case of SBO due to incarcerated stomach contained in inguinal hernia – 12/2011
Publication of peer reviewed chapter on upper extremity injuries – Weiss, Lyn D.- Weiss, Jay M.- Pobre, Thomas. Oxford American Handbook of Physical Medicine & Rehabilitation. Oxford University Press – 4/2010
HONORS & MEMBERSHIPS
Flushing Hospital Bariatric Surgery Committee – 2014 – 2015
