Summary

Dr. Ronald Mathiasen specializes in otolaryngology-head and neck surgery, focusing on conditions affecting the ears, nose, throat, and related areas of the head and neck. He earned his medical degree from the University of California San Diego School of Medicine and completed his residency training at Kaiser Permanente Medical Group. With three decades of practice experience, Dr. Mathiasen has developed extensive expertise in surgical procedures for the upper respiratory system. He provides care in English for his patients throughout the San Diego area.

Dr. Mathiasen practices at multiple Sharp healthcare locations across San Diego and Coronado, maintaining affiliations with Sharp Memorial Hospital, Sharp Coronado Hospital, and Sharp Mary Birch Hospital For Women And Newborns. His clinical focus includes treating sinus-related conditions such as chronic sinusitis and enlarged turbinates. He performs specialized procedures including endoscopic sinus surgery, turbinate surgery, and radio frequency volume reduction for nasal breathing issues. Patients have given him an average rating of 2.8 on Vitals.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 2.8
  • 30 years of experience
  • speaks English
  • Kaiser Permanente Medical Group
  • 8 written reviews
  • 2 specialties
  • 10 areas of expertise
  • 2 board certifications
  • 3 hospital affiliations
  • 6 office locations
  • Male

Office Locations

Dr. Ronald Allen Mathiasen has 6 locations

Sharp Rees-Stealy Medical Group

10670 Wexford StSan Diego, CA 92131
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Sharp Rees-Stealy Medical Group

10243 Genetic Center DrSan Diego, CA 92121
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Sharp Rees-Stealy Scripps Ranch

10670 Wexford St Ste 100San Diego, CA 92131

Sharp Coronado Hospital

250 Prospect PlCoronado, CA 92118

Sharp Mary Birch Hospital For Women And Newborns

3003 Health Center DrSan Diego, CA 92123

Sharp Memorial Hospital

7901 Frost StSan Diego, CA 92123

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Dr. Ronald Allen Mathiasen, MDDr. Paul Schalch Lepe, MDDr. Michael Adegbemiga AjaoDr. Ellen Star Steinsapir, MD
Otolaryngology-Head & Neck SurgeryOtolaryngology-Head & Neck SurgeryPublic Health & General Preventive MedicineEmergency Medicine
Accepts New Patients Accepts New Patients
2.8 
30 Years of Experience 24 Years of Experience 19 Years of Experience 37 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Spanish, English, Swedish, French, German Speaks English
San Diego , CASan Diego , CASan Diego , CASan Diego , CA
Med School: University Of Arizona College Of Medicine Med School: Universidad Nacional Autonoma De Mexico Facultad De Medicina Med School: Uniformed Services Univ Of The Health Sciences F E Hebert Schl Of Medicine Med School: University Of California San Diego School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Ronald Allen Mathiasen

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Ronald Allen Mathiasen has the following 2 specialties

Specialty Expertise

Dr. Ronald Allen Mathiasen has the following 10 areas of expertise

  • Allergies
  • Chronic Sinusitis
  • Deviated Septum
  • Facial Trauma
  • Hearing Loss
  • Polyps
  • Smell Disorders
  • Surgery
  • Swallowing Disorders
  • Tumors

Certifications, License, & Education

30 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Expired

EDUCATION & TRAINING

Residency

Kaiser Permanente Medical Group

Medical School

University Of Arizona College Of Medicine
University Of California San Diego School Of MedicineGraduated in 1996

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Frequently Asked Questions

Where is Dr. Ronald Mathiasen's office located?
Dr. Ronald Mathiasen's office is located at 10670 Wexford St, San Diego, CA, 92131.
How can I make an appointment with Dr. Ronald Mathiasen?
You can find contact information for Dr. Ronald Mathiasen here on Vitals.
Which hospitals is Dr. Ronald Mathiasen affiliated with?
Dr. Ronald Mathiasen is affiliated with Sharp Memorial Hospital, Sharp Coronado Hospital, and Sharp Mary Birch Hospital For Women And Newborns.
Does Dr. Ronald Mathiasen accept virtual/telehealth appointments?
Dr. Ronald Mathiasen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Ronald Mathiasen accept my insurance?
You can see the insurance plans that Dr. Ronald Mathiasen accepts on their Vitals profile.

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