Gastroenterology West at SW Barnes Road





About
At The Oregon Clinic Gastroenterology West, our experienced, board-certified physicians are committed to quality care in all aspects of gastroenterology and hepatology.
Our doctors are trained in advanced therapeutic and diagnostic procedures and are able to treat a wide variety of conditions.
Advanced technology, including Spyglass Endoscopy and Balloon Enteroscopy, allow for early detection of disease and prevention of unnecessary surgeries.
Thanks to our state-of-the-art outpatient endoscopy center and our close proximity to Providence St. Vincent’s Medical Center, we are able to offer our patients cutting edge diagnostic and therapeutic procedures in a comfortable and reassuring environment. We use safe and up-to-date sedation techniques.
We specialize in colon cancer screening that uses the gentlest bowel preparation and the most effective sedation medications.
Since November 2014, each of our three gastroenterology groups has been participating in the GI Quality Improvement Consortium (GIQuIC) program. Being part of this organization requires a focus on enhancing patient care through real-time peer-based performance evaluation. Click to read more on the GIQuIC website.

Endoscopy Center Ownership
Sergio Crespo, MD
Glenn Eisen, MD
David Grunkemeier, MD
Margot Herman, MD
Alan Kaynard, MD
Brent Lee, MD
Shannon Lewis, MD
Michael Owens, MD
Sarah "Betsy" Rodriguez, MD
Karen Saks, MD
Douglas Shumaker, MD
Adam Silverblatt, MD
Cristian Vallejos, MD
Amy Wang, MD
Jeffrey Weprin, MD
Diane Williams, DO
Team
Providers
- General Gastroenterology
- Liver Disease
- Viral Hepatitis
- Colon Cancer Screening & Prevention
- Acid Reflux
- Colon Cancer Screening & Prevention
- Disease of the Liver & Biliary Tract
- Hepatology
- Gastroesophageal Reflux Disease (GERD)
- Inflammatory Bowel Disease (IBD)
- Gastroesophageal Reflux Disease (GERD)
- Colon Cancer Screening & Prevention
- Barrett's Ablation
- Inflammatory Bowel Disease (IBD)
- Capsule Endoscopy
- Therapeutic Endoscopy
- Pancreas & Bile Duct Disorders
- Pancreatic Cancer
- Bile Duct Stones & Strictures
- Barrett's Esophagus & Esophageal Cancer
- Advanced Inflammatory Bowel Disease (IBD)
- Colorectal Cancer
- Hepatology & Liver Disease
- Celiac Disease
- Research
- Advanced Inflammatory Bowel Disease (IBD)
- Colon Cancer Screening & Prevention
- Celiac Disease
- Irritable Bowel Syndrome (IBS)
- Motility Disorders
- Colon Cancer Screening & Prevention
- Gastroesophageal Reflux Disease (GERD)
- Inflammatory Bowel Disease (IBD)
- Disease of the Liver & Biliary Tract
- Deep Small Intestinal Endoscopy
- Celiac Disease
- Colon Cancer Screening & Prevention
- Gastroesophageal Reflux Disease (GERD)
- Inflammatory Bowel Disease (IBD)
- Irritable Bowel Syndrome (IBS)
- Celiac Disease
- Colon Cancer Screening & Prevention
- Gastroesophageal Reflux Disease (GERD)
- Gastrointestinal Motility Disorders
- Inflammatory Bowel Disease (IBD)
- Gastroenterology
- Hepatology
- Inflammatory Bowel Disease (IBD)
- Irritable Bowel Syndrome (IBS)
- Inflammatory Bowel Disease (IBD)
- Intuitive Eating
- Low-FODMAP Diet
- Small Intestinal Bacterial Overgrowth (SIBO)
- Pancreas & Biliary Disease
- Gastroesophageal Reflux Disease (GERD)
- Colon Cancer Screening & Prevention
- General Gastroenterology
- Endoscopic Ultrasound (EUS)
- Esophageal Motility
- Gastroesophageal Reflux Disease (GERD)
- Inflammatory Bowel Disease (IBD)
- Colon Cancer Screening
- Colon Cancer Screening & Prevention
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Ultrasound (EUS)
- General Gastroenterology
- Pancreatobiliary Disease
- Colon Cancer Screening & Prevention
- Inflammatory Bowel Disease (IBD)
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Colonoscopy
- Celiac Disease
- Acute & Chronic Liver Disease
- Colon Cancer Screening & Prevention
- Inflammatory Bowel Disease (IBD)
- Internal Hemorrhoid Ligation
- Inflammatory Bowel Disease (IBD)
- Colon Cancer Screening & Prevention
- Gastroesophageal Reflux Disease (GERD)
- General Gastroenterology
- Inflammatory Bowel Disease (IBD)
- Celiac Disease
- Colon Cancer Screening & Prevention
- Esophageal Disorders
- Esophageal Manometry
- Colorectal Cancer
- Acid Reflux
- Inflammatory Bowel Disease (IBD)
- Irritable Bowel Syndrome (IBS)
- Intestinal Bleeding
Services & Procedures
Our providers use a variety of procedures to help heal and prevent cancer including:
Endoscopic Retrograde Cholangio Pancreatography (ERCP)
We also provide a full spectrum of GI services and treat many conditions including:
Collagenous Colitis & Lymphocytic Colitis
Diverticulosis and Diverticulitis
Gastroesophageal Reflux Disease (GERD)
Inflammatory Bowel Disease (IBD)
Irritable Bowel Syndrome (IBS)
Peptic Ulcers and Non-Ulcer Dyspepsia
Prevention of Colon Polyps & Cancer
Forms
To expedite your check-in process, please print and complete any applicable forms from our patient portal, MyHealthConnection (no login required).
Directions
From North
I-5 South to I-405 S/US-30W
to US-26W
Exit 69B – Park Way/Barnes Rd.
Right Baltic Ave.
From South
I-5 North to OR-217 N
Exit Barnes Rd.
Right Barnes
Left Baltic Ave.
From East
I-84 West to I-5 S
to I-405 S/US-30W
to US-26W
Exit 69B – Park Way/Barnes Rd.
Right Baltic Ave.
From West
US-26 East
Exit 69B – Park Way/Barnes Rd.
Right Baltic Ave.