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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Craig Chamberlain:

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Specialties & Research

Dr. Craig Chamberlain, MD is board certified in Gastroenterology.

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Chamberlain graduated from Oregon Health & Science University, Portland.


Dr. Chamberlain has 9 hospital affiliations:

  • Cottage Grove Hospital 
  • Sacred Heart Medical Center 

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Additional Information
Dr. Craig E Chamberlain MD is a male Internist, has 34 years of experience and practices in Gastroenterology.
Where does Dr. Craig E. Chamberlain practice?
Dr. Craig Chamberlain has 1 office location.
Dr. Craig Chamberlain practices Gastroenterology near Springfield, OR.
See Springfield Gastroenterologists.