new hope surgical

1950 N. Harlem Ave
Elmwood Park, IL

Monday - Friday
9:00 AM - 5:00 PM
Frederick M. Tiesenga, M.D.

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
    • Presence Saint Joseph Hospital, Chicago, IL

  • EDUCATION & RESIDENCY

    • 7/91-6/96 Illinois Masonic MedicalCenter Chicago, Illinois
    • 7/91-7/96 Metropolitan Group Hospitals Residency in General Surgery Chicago, IL
    • 8/87-6/91 M.D., University of IllinoisCollege of Medicine Chicago, IL
    • 7/83-7/87 B.S., Calvin College Grand Rapids, Michigan

  • HONORS AND POSTITONS HELD

    • 1/12-Present President Medical Staff, Westlake Hospital
    • 1/12-Present Chair, Credentials Committee, Westlake Hospital
    • 1/12-Present Co-Chairman PLC Committee, Westlake Hospital
    • 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
    • Flushing Hospital Robotics Committee – 2014 – 2015
    • Vice President of Maimonides Society at NYCOM. – 2007 – 2008


  • LICENSURE & CERTIFICATION

    • Licensed Physician, State of Illinois
    • Licensed Physician, State of New York
    • Certified in Advanced Trauma Life Support (ATLS)
    • Certified in Pediatric Advanced Life Support (PALS)


  • LANGUAGES

    • Fluent in Russian
    • Medical Spanish

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