John G Touzios MDJohn G. Touzios, MD

Practice Philosophy

“The best interest of the patient is the only interest to be considered…” -William J. Mayo

Clinical Interests

Colon, Rectal, and Anal Surgery; Colon Cancer; Rectal Cancer; Inflammatory Bowel Disease; Ulcerative Colitis and Crohn’s Disease; Diverticular Disease; Benign Anorectal Disease; Hemorrhoids; Fissures; Fistula; Fecal Incontinence; Minimally Invasive Surgery; Robotic Colorectal Surgery.


Medical Education

  • M.D., Northwestern University, Chicago, IL, 2001


  • General Surgery, Medical College of Wisconsin and Affiliated Hospitals, Milwaukee, WI, 2008


  • Colon and Rectal Surgery, Mayo Clinic, Rochester, MN, 2009

Professional Appointments

  • Medical Director, Colorectal Surgery Services, ProHealth Care

Board Certified

  • Colon and Rectal Surgery
  • General Surgery

Medical Organizations

  • American Society of Colon and Rectal Surgeons – Fellow
  • American College of Surgeons – Fellow
  • Wisconsin Surgical Society
  • Wisconsin Medical Society
  • Priestley Society, Mayo Clinic
  • Milwaukee Surgical Society

Professional Awards

  • Top Doctors 2015, 2016, 2018 (Milwaukee Magazine)

Office Locations

Waukesha Surgical Specialists

1111 Delafield St.
Suite 209

New Berlin

13900 W. National Ave.
New Berlin, WI 53151

Staff Privileges

  • Oconomowoc Memorial Hospital
  • ProHealth Care Moreland Surgery Center
  • Rehabilitation Hospital of Wisconsin – Waukesha
  • Waukesha Memorial Hospital

Hobbies/Personal Interests

  • Dr. Touzios enjoys spending time with his wife and four children. They love going on vacation together, golfing, making family meals together and going on fun adventures around the Milwaukee area.