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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

Location and phone

  1. Sharp Rees-Stealy Scripps Ranch
    10670 Wexford St.
    San Diego, CA 92131
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Care schedule

Sharp Rees-Stealy Scripps Ranch
10670 Wexford St.

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
To confirm coverage for specific treatments and procedures, contact your physician or health plan.
Patient portal

Insurance plans accepted

Ronald Mathiasen, MD, accepts 37 health insurance plans.

Ratings and reviews


176 ratings
Patient ratings
Explanations the care provider gave you about your problem or condition
Concern the care provider showed for your questions or worries
Care provider’s efforts to include you in decisions about your care
Likelihood of your recommending this care provider to others
Provider discussed treatment options
Patient reviews
Verified Patient
December 27, 2023


Doctor Mathiasen is absolutely the best!!
Verified Patient
December 16, 2023


The doctor was a good listener to patients concern. He explains things clearly and understandable.
Verified Patient
December 8, 2023


Each of the doctors who saw me took great care and attention to me.
Verified Patient
December 7, 2023


I felt at ease with Doctor Mathiasen.
Reviews are collected through 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.

Featured in Sharp Health News

Ronald Mathiasen, MD, has been featured as a medical expert in Sharp Health News.

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