Carol J. MacArthur, M.D.

Head Shot of Carol MacArthur
Otolaryngology (ENT), Pediatrics, Surgery
Special Interests:
Otolaryngology / ENT (Pediatric), Hemangiomas and Vascular Birthmarks, Velopharyngeal Insufficiency, Sleep Disorders Surgery (Pediatric), Otolaryngology Surgery (Pediatric)
Accepting Patients:
English, Spanish

Academic and Clinical Positions

Pediatric Otolaryngologist



Dr. MacArthur joined the Department of Otolaryngology/Head and Neck Surgery at OHSU in 2002. She came from Children's Hospital of Orange County (CHOC) and the University of California, Irvine in Orange, California where she was in practice for 11 years. She received her medical degree at UCLA. She completed her training in Otolaryngology/Head and Neck Surgery at the University of California, Davis. Dr. MacArthur also completed a Pediatric Otolaryngology fellowship at Harvard Medical School/Boston Children's Hospital, in Boston, Massachusetts before beginning her practice in 1991. Dr. MacArthur is currently on staff at Doernbecher Children's Hospital, Oregon Health & Science University, St. Vincent’s Hospital and Emmanuel Legacy Hospital in Portland, Oregon.

Since 2005, Dr. MacArthur has been funded through the NIH as a Co-Investigator with Dennis Trune, PhD to study the inner ear impact of chronic middle ear inflammation (mouse model), steroid responsive mechanisms in the ear (mouse model), and the genetic susceptibility to otitis media – candidate genes. She also received a $20,000 grant from the National Organization for Hearing Research (NOHR) in 2011 to study the genetic variation in the immune system to otitis media. She collaborates with an international group interested in the genetics of chronic otitis media including research teams from the UK, Finland, Pittsburgh and Australia on this effort.

In addition, she has a strong clinical interest in the treatment of hemangiomas and vascular birthmarks. She co-founded the Hemangioma and Vascular Birthmarks team at OHSU along with Alfons Krol, MD (Pediatric Dermatology) in 2003. This team provides multidisciplinary care to children and adults with complex hemangiomas and vascular birthmarks, offering the most up-to-date treatment options, both medical and surgical and via interventional radiology. She has active clinic studies in pediatric dysphagia secondary to type I laryngeal clefts and outcomes for PE tube placement in the Down syndrome population. She is an active mentor to students and residents and has recently been appointed as a College of Medicine Portfolio Coach with a 0.1 FTE position to closely mentor 5 medical students. She has 40 peer-reviewed publications, is active in editorial review activities for several medical journals and granting agencies. She serves on numerous institutional committees to support the OHSU institution in Professionalism, Safe Opioid Use, Faculty Council and as Co-Chair of the Committee on Committees. She also serves on the American Society of Pediatric Otolaryngology Long Range Planning Committee and Task Forces on Fellowship, Vascular Birthmarks, Research, Voice and Recurrent Respiratory Papillomas.

Professional Education

  • Degrees:
    M.D., University of California Los Angeles, Los Angeles, CA, 1984
  • Residency:

    University of California Davis, 1990

  • Fellowship:

    Pediatric Otolaryngology, Boston Children's Hospital, Harvard Medical School, 1991

  • Certification:

    Otolaryngology, 1990


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Clinical Trials

The following clinical trials are currently accepting new participants:

“Quality of Life Outcomes in Down Syndrome after PE Tube Placement “.

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