Overview
Douglas Shumaker is a Gastroenterologist in Portland, Oregon. Dr. Shumaker is rated as an Experienced provider by MediFind in the treatment of Encopresis. His top areas of expertise are Crohn's Disease, Childhood Pancreatitis, Irritable Bowel Syndrome (IBS), Endoscopy, and Pancreatectomy.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Locations
Additional Areas of Focus
Dr. Shumaker has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.
University Professional Services
Sarah Diamond is a Gastroenterologist in Portland, Oregon. Dr. Diamond is rated as an Advanced provider by MediFind in the treatment of Encopresis. Her top areas of expertise are Colitis, Achalasia, Gastroparesis, Endoscopy, and Gastrectomy. Dr. Diamond is currently accepting new patients.
David Grunkemeier is a Gastroenterologist in Portland, Oregon. Dr. Grunkemeier is rated as an Advanced provider by MediFind in the treatment of Encopresis. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Familial Adenomatous Polyposis, Colonoscopy, and Gastrectomy. Dr. Grunkemeier is currently accepting new patients.
Jeffrey Duman is a Gastroenterologist in Tualatin, Oregon. Dr. Duman is rated as an Experienced provider by MediFind in the treatment of Encopresis. His top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Gastrectomy, and Endoscopy.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Childhood PancreatitisDr. Shumaker isAdvanced. Learn about Childhood Pancreatitis.
- Crohn's DiseaseDr. Shumaker isAdvanced. Learn about Crohn's Disease.
- Experienced
- Acute PancreatitisDr. Shumaker isExperienced. Learn about Acute Pancreatitis.
- Angiodysplasia of the ColonDr. Shumaker isExperienced. Learn about Angiodysplasia of the Colon.
- AscitesDr. Shumaker isExperienced. Learn about Ascites.
- Autoimmune HepatitisDr. Shumaker isExperienced. Learn about Autoimmune Hepatitis.
- Barrett EsophagusDr. Shumaker isExperienced. Learn about Barrett Esophagus.
- Bile Duct ObstructionDr. Shumaker isExperienced. Learn about Bile Duct Obstruction.