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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).

Learn more about Dr. Dennis Mayer:

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  1. Qualifications
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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Dennis Mayer is Excellent. Dr. Mayer has been reviewed by 1 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Specialties & Research

Dr. Dennis Mayer, MD is board certified in Internal Medicine.

Education & Awards

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


Dr. Mayer has 5 hospital affiliations:

  • Providence Portland Medical Center 
  • Adventist Medical Center 


  • English

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Additional Information
Dr. Dennis Owen Mayer MD is a male Internist, has 41 years of experience and practices in Internal Medicine.
Where does Dr. Dennis O. Mayer practice?
Dr. Dennis Mayer has 2 office locations.
Dr. Dennis Mayer practices Internal Medicine near Portland, OR.
See Portland Internists.