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Internist, Infectious Disease Specialist (virus, bacteria, parasites)
33 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. Peter O'Hanley, MD is board certified in Internal Medicine and Infectious Disease.

  • He has special expertise in 6 areas:
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • Diarrhea
  • E.Coli (Escherichia coli Infections)
  • HIV Infections
  • Hepatitis C
  • Hospitalist

Education & Awards

Dr. O'Hanley graduated from Medical University of South Carolina, Charleston.


Dr. O'Hanley has 6 hospital affiliations:

  • Providence Milwaukie Hospital 
  • Providence Portland Medical Center 


  • Spanish
  • English

> > > > Dr. Peter O'Hanley, MD

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Additional Information
Dr. Peter D O'Hanley MD is a male Internist, has 33 years of experience and practices in Internal Medicine and Infectious Disease.
Where does Dr. Peter D. O'Hanley practice?
Dr. Peter O'Hanley has 7 office locations.
Dr. Peter O'Hanley practices Internal Medicine and Infectious Disease near The Dalles, OR.
Additional practice locations include: Oregon City, OR and Portland, OR.
See The Dalles Internists and The Dalles Infectious Disease Doctors.