Randall W. Lengeling, MD


  • Board Certified

Call 563-557-9111

Accepting new patients.

Dr. Randall Lengeling became interested in gastroenterology and hepatology because it was his best personal fit in the medical profession, and he has the ability to diagnose and treat GI illnesses relatively noninvasive. During his free time, Dr. Lengeling enjoys collecting, curating, researching and lecturing on the Iowa artist Grant Wood, along with playing tennis. He is a very active member of his community.

Contact Information

  • Office: 563-557-9111
  • Fax: 563-557-5560

Hours of Operation

Sunday: Closed
Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: Closed
Saturday: Closed








Year began practicing: 1981

Year joined staff: 1981

Medical School

University of Iowa


Internal Medicine, University of Iowa


General Internal Medicine, University of Iowa

Board Certification

Internal Medicine

Professional Memberships

  • American Medical Association
  • Iowa Medical Society 

Honors, Awards, etc.

  • Director's Award, Dubuque Museum of Art 2006
  • Elisha Darlin Arts Award, The Dubuque County Fine Arts Society, 2008, as a member of the Dubuque Cultural Perservation Committee
  • Guest Lecturer, Nonsteroidal Anti-inflammatory Drug Enteropathy: An Unrecognized American Epidemic, Progress in Internal Medicine, Department of Internal Medicine, University of Iowa College of Medicine, October 2011.


  • R. W. Lengeling, C. M. Helms, Treatment of atypical pneumonia J Iowa Med Soc, 71(6), 258-60 (1981)
  • C. M. Helms, R. W. Lengeling, R. L. Pinsky, M. G. Myers, F. P. Koontz, L. W. Klassen, L. A. Wintermeyer, Toxic shock syndrome: a retrospective study of 25 cases from Iowa. Am. J. Med. Sci., 282(2), 50-60 (1981)
  • Ulcerative ileitis encountered at ileo-colonoscopy: likely role of nonsteroidal agents.
  • Lengeling RW, Mitros FA, Brennan JA, Schulze KS. Clin Gastroenterol Hepatol. 2003 May;1(3):160-9.
  • Reviewed, American College of Physicians Annual Meeting 2004 and reported in Update in Gastroenterology and Hepatology, N Greenberger, MD and Prateek Sharma, MD, Annals of Internal Medicine 141:5, 377;2004,
  • Comments on Nonsteroidal Anti-Inflammatory Drug Enteropathy, Clin Gastroenterol Hepatol. 2010;8:223–225. Randall W. Lengeling, M.D and Konrad S. Schulze, M.D.