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Internist, Critical Care Specialist, Pulmonologist (lungs)
41 years of experience
Accepting new patients
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).

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Specialties & Research

Dr. Alan Barker, MD is board certified in Internal Medicine and Pulmonary Disease.

  • He has special expertise in 6 areas:
  • Asthma
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Critical Care
  • Lung Cancer
  • Obstructive Lung Diseases
  • alpha 1-Antitrypsin Deficiency

Education & Awards

Dr. Barker graduated from University of Missouri at Columbia.


Dr. Barker has 3 hospital affiliations:

  • Albany General Hospital 
  • Oregon Health Science University 
  • OHSU Hospital 

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Additional Information
Dr. Alan Freund Barker MD is a male Internist, has 41 years of experience and practices in Internal Medicine, Pulmonary Disease, and Critical Care Medicine.
Where does Dr. Alan F. Barker practice?
Dr. Alan Barker has 1 office location.
Dr. Alan Barker practices Internal Medicine, Pulmonary Disease, and Critical Care Medicine near Portland, OR.
See Portland Internists, Portland Pulmonologists, and Portland Critical Care Practitioners.