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Oregon Clinic

  • NE: 503-963-2707
  • West Hills Gastroenterology: 503-297-8081
  • Vancouver Office: 503-963-2784
  • Specialties: Gastroenterology
  • Accepting New Patients: Yes

Nearly 20,000 procedures every year

The Oregon Clinic’s gastroenterologists give new meaning to the word “specialists” to both our patients and our profession. As one of the top referral centers on the west coast, and the 7th largest in the nation, our board certified physicians are recognized leaders in caring for patients with diseases of the:

  • Esophagus
  • Stomach
  • Small intestine
  • Colon
  • Rectum
  • Pancreas,
  • Gallbladder
  • Liver

From early detection to preventing unnecessary surgery

With state-of-the-art outpatient centers, we offer our patients cutting edge diagnostic and therapeutic procedures in a comfortable and compassionate environment. All aspects of gastroenterology and hepatology care are part of our practice, including:

  • Advanced therapeutic and diagnostic procedures such as ERCP (a technique for evaluating and treating diseases of the liver, bile ducts and pancreas)
  • Endoscopic ultrasound (an imaging method that enables physicians to see and identify changes in the digestive tract more accurately)

Come in for a screening; go home a fan. 
Kind words from some of the happy, healthy people we’ve served.

"Everyone is so pleasant and professional. How do you find so many lovely people?

"Your staff is exceptionally nice, friendly and very professional. This is how all medical visits should be.

"Doctors and staff interacted with me in such a way that I left feeling heard, understood, and valued as an individual." 


Our Providers:


  • Jeffrey S. Albaugh, M.D.
  • Kent G. Benner, M.D.
  • Sidharth Bhardwaj, M.D.
  • Harry E. Bray, M.D.
  • Viju P. Deenadayalu, M.D.
  • Craig S. Fausel, M.D.
  • Kenneth D. Flora, M.D.
  • Jeremy P. Holden, M.D.
  • Betty H. Kim, M.D.
  • Kirsten J. Kinsman, M.D.
  • Phillip K. Kiyasu, M.D.
  • Donald F. Lum, M.D.
  • Michael G. Phillips, M.D.
  • James K. Regan, M.D.
  • Alan D. Savoy, M.D.
  • Hong Shen, M.D.
  • Lehel Somogyi, M.D.
  • Anne H. Wang, M.D.
  • Michelle Chiu, ANP
  • Adrian Davies, FNP
  • Mary Gilley, ANP
  • Erica Heagy, FNP
  • Janice Voukidis, ANP

West Hills

  • Christopher R. Carter, M.D.
  • Glenn M. Eisen, M.D.
  • David M. S. Grunkemeier, M.D.
  • Alan H. Kaynard, M.D., Ph.D.
  • George Koval, M.D.
  • Shannon K. Lewis, M.D.
  • Michael M. Owens, M.D.
  • Sarah A. Rodriguez, M.D.
  • Douglas A. Shumaker, M.D.
  • Rodger A. Sleven, M.D.
  • Cristian Vallejos, M.D.
  • Jeff J. Weprin, M.D.
  • Diane H. Williams, D.O.
  • Banny Wong, M.D.
  • Vesna Ader, PAC
  • Patrick Birbeck, PAC
  • Amy Caine, PAC
  • Izabela Maciolek, PAC
  • Erica Burg, GNP
  • Anna Hartshorn, ACNP

Vancouver, WA

  • Jeffrey S. Albaugh, M.D.
  • Harry E. Bray, M.D.
  • Jeremy P. Holden, M.D.
  • Phillip K. Kiyasu, M.D.


Make an appointment – call or click

Give us a call or visit us online at: www.oregonclinic.com/specialty/Gastroenterology to schedule an appointment at one of our convenient locations.


Follow us on Twitter: @oregonclinic
Add us on Facebook: facebook.com/OregonClinic

Portland Gastroenterology-Gateway Medical Office
1111 NE 99th Ave
Portland, OR 97220
West Hills Gastroenterology
9701 SW Barnes Rd
Portland, OR 97225
Vancouver Office
315 SE Stonemill Dr., Suite 102
Vancouver, WA 98684