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Ronald Mathiasen, MD

Medical doctor (MD)
ENT (otolaryngology) (board certified)
Medical Group
Sharp Rees-Stealy

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Accepting new patients
Virtual visits available
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Location and phone

  1. Sharp Rees-Stealy Scripps Ranch
    10670 Wexford St.
    San Diego, CA 92131
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About Ronald Mathiasen, MD

I am a board-certified otolaryngologist - which is a head and neck surgeon. A Phi Beta Kappa graduate from UCLA with highest honors, I graduated with distinction from the UCSD School of Medicine in 1996. I had my "calling" at age five when my newborn sister was born with a congenital condition. I was so impressed with the care she received from her physicians, that I made a vow to become a doctor so I could help other people in the way the doctors helped my sister. I have authored several publications and have given many presentations in the field of otolaryngology. I have a special interest and expertise in thyroid and parathyroid surgery, endoscopic sinus surgery and nasal surgery, otologic microsurgery and facial plastic and reconstructive surgery. In my spare time, I race cars, travel extensively, attend musicals, concerts and cultural events and try to enjoy San Diego for all it has to offer.
In practice since:
English, Spanish
Cedars-Sinai Medical Center:
Kaiser Permanente Oakland Medical Center:
University of California, San Diego:
 Medical School
Hospital affiliation
Areas of focus
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Insurance plans accepted

Ronald Mathiasen, MD, accepts 37 health insurance plans.

Ratings and reviews

122 ratings
Patient ratings
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Patient reviews
Verified Patient
May 30, 2023
Great doctor and great staff, would definitely recommend!!
Verified Patient
May 27, 2023
Dr.Mathisean was very professional he explained to me what's going on to my sinus surgery post op very friendly
Verified Patient
May 27, 2023
Dr. Mathiasen is a great doctor and very caring to his patients. Though I was given the wrong instructions and didn't need to be on the pain meds for the post op, he was caring and his explanation to what was happening was foggy to me but clear as day to my wife in the room.
Verified Patient
May 18, 2023
Always a great experience at Sharp.
Reviews are collected nationally recognized Press Ganey patient satisfaction surveys. Learn more about ratings and reviews.


Special recognitions

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Guardian Angel recognitions
Ronald Mathiasen, MD, has received Guardian Angel recognitions from grateful patients and families. Have you and your family received exceptional care from Ronald Mathiasen, MD? Consider paying tribute with a Guardian Angel gift.

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