Summary

Dr. Ohollaren graduated from the Oregon Health & Science University School of Medicine in 1980. He works in Portland, OR and 1 other location and specializes in Allergy & Immunology and Internal Medicine. Dr. Ohollaren is affiliated with Oregon Health And Science University Hospital.

Quick Facts

  • 3.8
  • 46 years of experience
  • Oregon Health & Science University School Of Medicine
  • 2 specialties
  • 13 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr. Mark Thomas Ohollaren has 2 locations

Oregon Health And Science University Hospital

3181 Sw Sam Jackson Park RdPortland, OR 97239

Allergy Clinic

511 SW 10th Ave Ste 1301Portland, OR 97205

Compare with Similar Doctors

Dr. Mark Thomas Ohollaren, MD
Columbia Allergy
Dr. Christina Isabel Baumann
Dr. Lakshmi Rangarajan Mudambi
Dr. Mark Thomas Ohollaren, MDColumbia AllergyDr. Christina Isabel BaumannDr. Lakshmi Rangarajan Mudambi
Allergy & ImmunologyAllergy & ImmunologyPublic Health & General Preventive MedicineCritical Care Medicine
Accepts New Patients
3.8 
46 Years of Experience 19 Years of Experience 19 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English
Portland , ORFremont , CAPortland , ORPortland , OR
Med School: Oregon Health & Science University School Of Medicine Med School: University Of Michigan Medical School Med School: Kempegowda Institute Of Medical Sciences
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Mark Thomas Ohollaren

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Mark Thomas Ohollaren has the following 2 specialties

Specialty Expertise

Dr. Mark Thomas Ohollaren has the following 13 areas of expertise

  • Allergies
  • Asthma
  • Desensitization
  • Food Allergies
  • Hay Fever
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Internal Medicine
  • Itching
  • Nasal Allergies
  • Nasal Allergy (Rhinitis)
  • Rash
  • Sinusitis
  • Watery Eyes

Certifications, License, & Education

46 Years Experience

EDUCATION & TRAINING

Medical School

Oregon Health & Science University School Of MedicineGraduated in 1980

Similar doctors

Frequently Asked Questions

Where is Dr. Mark Ohollaren's office located?
Dr. Mark Ohollaren's office is located at 3181 Sw Sam Jackson Park Rd, Portland, OR, 97239.
Which hospitals is Dr. Mark Ohollaren affiliated with?
Dr. Mark Ohollaren is affiliated with Oregon Health And Science University Hospital.
Does Dr. Mark Ohollaren accept my insurance?
You can see the insurance plans that Dr. Mark Ohollaren accepts on their Vitals profile.
Is Dr. Mark Ohollaren accepting new patients?
Dr. Mark Ohollaren has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Mark Ohollaren accept virtual/telehealth appointments?
Dr. Mark Ohollaren has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.