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Welcoming New Patients

Mark Ranzinger, MD, FACS

General Surgery, Thyroid Surgery



Mark Ranzinger, MD, FACS, is a board certified general surgeon who performs a broad range of surgical procedures. Dr. Ranzinger focuses on minimally invasive surgery using laparoscopic approaches for benign conditions, such as gastroesophageal reflux, paraesophageal hernias, achalasia, splenic diseases and hernias. He is trained in surgery for cancers of the pancreas, adrenal glands and colon, as well as melanoma. He has a special interest in thyroid surgery and is a member of the American Thyroid Association. In addition, he serves at the medical director for Goshen Wound & Hyperbaric Center.

Philosophy of Care

Throughout his career, Dr. Ranzinger has received numerous honors and awards, both as a teacher and surgeon. Dr. Ranzinger views surgery as a combination of art and science. He believes good clinical judgment is developed by a commitment to lifelong learning and by giving every patient the time and personalized care they need and deserve.

Clinical Interest & Research

  • Thyroid Surgery
  • Endoscopy
  • Wound Care Management
    • hyperbaric oxygen therapy
  • Abdominal Surgery
    • hernias
    • gallbladder
    • inflammatory bowel disease
    • acid reflux/GERD
    • colon
    • small bowel
    • tumor
  • Minimally Invasive Surgery


Education and training:
Bachelor of Arts
Walla Walla College, Walla Walla, Washington

Master of Public Health
School of Public Health, University of East Africa

Doctor of Medicine
Loma Linda University School of Medicine, Loma Linda, California

Wright State University, Dayton, Ohio


General Surgery
Wright State University, Dayton, Ohio


Thoracic & Upper Gastrointestinal Surgery
Bristol Royal Infirmary, Bristol, England

Minimally Invasive Surgery
University of Maryland, Baltimore, Maryland


  • American Thyroid Association
  • American College of Surgeons
  • American Medical Association
  • Society of American Gastrointestinal and Endoscopic Surgeons
  • Elkhart County Medical Society
  • Indiana State Medical Association


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