MO
39 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. O'hollaren, Allergist & Immunologist in Portland, OR?
Dr. Mark O'hollaren, MD is an Allergist & Immunologist, who primarily practices in Portland, OR. He has been practicing for over 39 years and is board certified. Dr. O'hollaren graduated from Georgetown University, Washington, DC and completed his residency at Mayo Grad Sch Med/Mayo Fndn, Anesthesiology; Stanford Univ Hosp, Internal Medicine. Dr. O'hollaren is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. O'hollaren’s office at (503) 228-0155.
What are Areas of Expertise for Dr. O'hollaren?
Dr. Mark O'hollaren, MD is a highly-rated, board-certified Allergist & Immunologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. O'hollaren empowers patients to confidently navigate their health journey, specializing in Anaphylaxis, Insect Allergy, and comprehensive wellness support. Serving the Portland, OR community, Dr. O'hollaren is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. O'hollaren go to medical school and complete their residency?
Residency: Mayo Grad Sch Med/Mayo Fndn, Anesthesiology; Stanford Univ Hosp, Internal Medicine
Medical School: Or Hlth Sci Univ Sch of Med, Portland Or | Georgetown University, Washington, DC
Is Dr. O'hollaren board certified as an Allergist & Immunologist?
Yes, Dr. Mark O'hollaren, MD is board certified by the American Board of Internal Medicine
What languages does Dr. O'hollaren speak?
Dr. O'hollaren and their clinical team can communicate with patients in the following languages:
English
What conditions does an Allergist & Immunologist like Dr. O'hollaren typically treat?
As an Allergist & Immunologist, conditions treated by Dr. Mark O'hollaren may include:
Please contact Dr. O'hollaren's office directly to confirm care for your specific condition, for more information, or to schedule a consultation.
What procedures does an Allergist & Immunologist like Dr. O'hollaren typically perform?
As an Allergist & Immunologist, procedures performed by Dr. Mark O'hollaren may include:
- Allergy Consultation
- Allergy Follow Up
- Allergy Shots
- Allergy Testing
- Insect Bite(s)
- Sinus Surgeon Consultation
- Sinus Surgeon Follow Up
- Sinus Surgery
Please contact Dr. O'hollaren's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. O'hollaren accept my insurance?
Please contact Dr. O'hollaren's office to confirm accepted insurance plans.
Where is Dr. O'hollaren's office located?
Dr. Mark O'hollaren's Primary Practice
511 SW 10th Ave Ste 1301
Portland, OR 97205
(503) 228-0155
What is Dr. O'hollaren's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. O'hollaren's National Provider Identifier (NPI) number is 1588723787.
What common questions do patients ask about Dr. O'hollaren?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. O'hollaren
What is Dr. Mark O'hollaren's specialty?
Dr. O'hollaren is a Allergist & Immunologist near Portland, OR.
What does an Allergist & Immunologist do?
An allergist-immunologist is well-versed in the assessment, physical examination, laboratory diagnosis, and treatment of immune system disorders. These conditions include, but are not limited to, eczema, asthma, anaphylaxis, rhinitis, and adverse reactions to food, medication, and insect stings. Furthermore, they manage immune deficiency diseases, whether acquired or congenital, issues with host defense, and challenges associated with autoimmune diseases, organ transplantation, or immune system malignancies.
Is this Dr. Mark O'hollaren affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. O'hollaren is affiliated with Providence St. Vincent Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see an Allergist & Immunologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Allergist & Immunologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Mark O'hollaren accepting new patients in Portland, OR?
Yes, Dr. Mark O'hollaren is accepting new patients at this time.
Does Dr. Mark O'hollaren offer online booking?
Please contact Dr. O'hollaren's office at (503) 228-0155 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark O'hollaren?
Please contact Dr. O'hollaren's office at (503) 228-0155 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark O'hollaren have?
Dr. Mark O'hollaren is certified by the American Board of Internal Medicine.
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