Dr. Doug Allen Shumaker is an gastroenterology specialist in Portland, Oregon (OR). He graduated from Oregon Health Sciences University School Of Medicine in 1994 and specializes in gastroenterology.
| Board certification | Gastroenterology | 
| Gender | Male | 
| Education | Graduated : 1994 School : Oregon Health Sciences University School Of Medicine  | 
| Group Affiliations | Oregon Clinic pc | 
| Hospital Affiliations | Providence St Vincent Medical Center | 
| Providence Portland Medical Center | 
| Name | Specialty | Location | 
|---|---|---|
| Adam Edward Silverblatt | Gastroenterology Internal Medicine  | 
                 Portland, Oregon (OR) | 
| Alan Howard Kaynard | Gastroenterology | Portland, Oregon (OR) | 
| Alan Drew Savoy | Gastroenterology | Portland, Oregon (OR) | 
| Albert H Khine | Gastroenterology | Portland, Oregon (OR) | 
| Amnon Sonnenberg | Gastroenterology | Portland, Oregon (OR) | 
| Amy Wang | Gastroenterology | Portland, Oregon (OR) | 
| Anne HsiaO-Yuen Wang | Gastroenterology | Portland, Oregon (OR) | 
| Anthony Anwar Razzak | Gastroenterology | Portland, Oregon (OR) | 
| Atif Zaman | Gastroenterology | Portland, Oregon (OR) | 
| Barry T Degregorio | Gastroenterology | Portland, Oregon (OR) |