Dr. Derfus is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
1400 Bellinger St
Eau Claire, WI 54703Phone+1 715-838-5222Fax+1 715-838-3812
Education & Training
Medical College of Wisconsin Affiliated HospitalsFellowship, Gastroenterology, 1987 - 1990
University of MinnesotaResidency, Internal Medicine, 1984 - 1987- Medical College of WisconsinClass of 1984
Certifications & Licensure
WI State Medical License 1987 - 2023- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2012
Publications & Presentations
PubMed
- 255 citationsEndoscopic balloon dilation compared with sphincterotomy for extraction of bile duct stones.James A. DiSario, Martin L. Freeman, David J. Bjorkman, Padraic MacMathuna, Bret T. Petersen
Gastroenterology. 2004-11-01 - 86 citationsImpact of Artificial Intelligence on Miss Rate of Colorectal Neoplasia.Michael B Wallace, Prateek Sharma, Pradeep Bhandari, James East, Giulio Antonelli
Gastroenterology. 2022-07-01 - 6 citationsPancreatic pseudocyst with fistula to the common bile duct presenting with gastrointestinal bleeding.Massimo Raimondo, Arlan M. Ashby, Elaine A. York, Gregory A. Derfus, Michael B. Farnell
Digestive Diseases and Sciences. 1998-12-01
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence:
