210 Portland Street Columbia, MO 65201

Donald C. Gerhardt

Mizzou logo
University of Missouri, Columbia, Missouri,

B.A., June 1968

St Louis University
St. Louis University School of Medicine

M.D., May 30, 1972

Dr. Donald C. Gerhardt
Dr. Gerhardt is a member of the American Gastrointestinal Association, the American Society for Gastrointestinal Endoscopy and a fellow in the American College of Physicians. He has served on the credentials committee for the ACP and has been an ACP Preceptor for students for the past 20 years.

In 2005 Dr. Gerhardt received the Missouri Chapter Laureate Award for demonstrating by their example and conduct an abiding commitment to excellence in medical care, education, research and service to their community, the Chapter, and the American College of Physicians.

Board Certification

  • Missouri State Board of Registration for the Healing Arts, 1972
  • Diplomate National Board of Medical Examiners, 1973
  • Certified, American Board of Internal Medicine, 1975
  • Certified, American Board of Internal Medicine, Gastroenterology, 1977


  • St. John’s Mercy Medical Center, St. Louis, Missouri
    Straight Medicine, June 30, 1975


  • St. John’s Mercy Medical Center, St. Louis, Missouri
    Internal Medicine, June 30, 1975


  • University of Missouri Medical Center, Columbia, Missouri
    Gastroenterology, June 30, 1977


  • American College of Physicians, Fellow
  • American Gastroenterological Association, Fellow
  • American Society for Gastrointestinal Endoscopy

Work History

GI Associates, LLP

January 1980-Present


  • Staff, Gastroenterology Branch Internal Medicine Service, National Naval Medical Center, Bethesda, Maryland, July 1977-June 1979
  • Faculty, Uniformed Services University of the Health Sciences Bethesda, Maryland, Asst. Professor of Medicine, July 1977-june 1979
  • Faculty, University of Missouri School of Medicine, Columbia, Clinical Assoc. Professor of Medicine, July 1979-Present
  • Staff, Gastroenterology Division, University of Missouri Medical Center, Columbia, Missouri, July 1979-January 1980
  • Associate Staff, Boone Hospital Center, Columbia, Missouri, January 1980-Present
  • Courtesy Staff, Columbia Regional Hospital, Columbia, Missouri, January 1980-Present


 Donald C. Gerhardt


Gerhardt D, Shuck T, Bordeaux R, Winship D, Human upper esophageal sphincter: Response to volume, osmotic and acid stimuli. Gastroenterology 75:268-274, 1978.


Castell D, Knuff T, Brown F, Gerhardt D, Burns T, Gaskins R: Clinical Conference: Dysphagia. Gastroenterology 76:1015-1024, 1979.


Benjamin S, Gerhardt D, Castell D: High amplitude, peristaltic esophageal contractions associated with chest pain and/or dysphagia. Gastroenterology 77:478-483. 1979.


Gerhardt D, Castell D, Winship D, Shuck T: Upper esophageal sphincter dysfunction in patients with esophageal pharyngeal regurgitation. Gastroenterology 78:893-897, 1980.


Gerhardt D, Shuck T, Winship D: Upper esophageal sphincter: a Manometric profile. American Journal of Physiology 239:G49-52, 1980.


Richter J, Gerhardt D, Pasquale D, Castell D: Unconfirmed granulocytopenia secondary to Cimetidine. Digestive Diseases 25:960-963, 1980.


Marshall JB, Gerhardt DC: Polyposis coli presenting with streptococcus bovis endocarditis. American Journal of Gastroenterology 75:314-316, 1981.


Meyer GW, Gerhardt DC, Castell DO: Human esophageal response to rapid swallowing: muscle refractory period or neural inhibition? American Journal Physiology 241:G129-G136, 1981.


Gerhardt D, Winship D: Cricopharyngeal Disorder, a chapter in diseases of the esophagus, edited by Sidney Cohen, Churchill-Livingston May 1982.


Benjamin S, Eisold J, Gerhardt D, Castell D: Central nervous system lymphoma presenting as dysphagia. Digestive Diseases and Sciences 27:155-160, 1982.


Gerhardt D, Castell D: Anatomy and Physiology-Sphincters, a chapter in Esophageal Function in Health and Disease, edited by D. Castell and L. Johnson, Elsevier North Holland Publ. 1983.


Marshall JB, Kretschmar JM, Gerhardt DC, Winship D, Winn D, Treadwell EL, Sharp GL: Gastrointestinal Manifestations of Mixed Connective Tissue Disease. Gastroenterology 98:1232-1238, 1990.


Burns TW, Stephenson HE, Butt JH, Gerhardt DC: Massive gastric hemorrhage due to small vessel erosion (the Dieulafoy Lesion). Missouri Medicine 89:39-41. 1992.

Our Core Values

We treat each patient as a unique individual.

Listen & Learn
Diagnose & Treat
Dr. Bradley Anderson
Bradley W. Anderson
Dr. Peter Jay Cleavinger
Peter Jay Cleavinger
M.D. / Ph.D.
Dr. Kevin D. Halsey
Kevin D. Halsey
Dr. Nicolas Llorens
Nicolas Llorens
Dr. Stephen Welsh
Stephen W. Welsh
Dr. Michael D. Williams
Michael D. Williams
Rita Lutz
Advanced Gerontological Nurse Practitioner
Jacob Pilger
Jacob Pilger