Dr. Mark O'Hollaren, MD
Dr. Mark O'Hollaren, MD is an internist in Portland, OR and has over 40 years of experience in the medical field. He graduated from Oregon Health & Science University in 1980.
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3181 SW Sam Jackson Park Rd Portland, OR 97239Compare Dr. Mark O'Hollaren, MD with other Internists near you
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Dr. O'Hollaren's Reviews
Likelihood to recommend Dr. O'Hollaren
5.0
| 5 Star | 100% | 100% |
| 4 Star | 0% | 0% |
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How was your experience with Dr. O'Hollaren?Overall Patient Satisfaction
Likelihood of recommending Dr. O'Hollaren to family and friends is 5 out of 5
About Me
biography
Dr. Mark O'Hollaren, MD is an internist in Portland, OR and has over 40 years of experience in the medical field. He graduated from Oregon Health & Science University in 1980.Internal Medicine
Allergy & Immunology
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Oregon Health & Science University
Medical School, 1980
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