Dr. O'Hollaren accepts UnitedHealthCare, and other major insurance plans. Please call ahead to confirm all accepted insurance plans.
Dr. Mark O'Hollaren, MD
Overview of Dr. Mark O'Hollaren, MD
Dr. Mark O'Hollaren, MD is an Allergy & Immunology Specialist in Portland, OR. They specialize in Allergy & Immunology, has 44 years of experience, and is board certified in Allergy & Immunology. They graduated from Oregon Health & Science University. Patients rated Dr. O'Hollaren an average 5.0 star rating.
Dr. O'Hollaren works at
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Dr. O'Hollaren's Office Locations
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1
Ohsu Hospital3181 SW Sam Jackson Park Rd, Portland, OR 97239 Directions (503) 494-1204
Experience & Treatment Frequency
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- UnitedHealthCare
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About Dr. Mark O'Hollaren, MD
- Allergy & Immunology
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*Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
- 44 years of experience
- English
- 1588723787
Education & Certifications
- Oregon Health & Science University
- Allergy & Immunology and Internal Medicine
Frequently Asked Questions
Dr. O'Hollaren has indicated that they do offer telehealth services. Please call the provider’s office at for more information.
Dr. O'Hollaren works at
1 patients have reviewed Dr. O'Hollaren. The overall rating for this provider is 5.0. You can read verified reviews and ratings and leave your own review based on your experience with Dr. O'Hollaren.
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