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About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

John Sun, MD

Specialty
  • Otolaryngology
Additional Language Spoken
English
Medical Groups & Affiliations
  • Hoag Affiliated Physicians
  • Mission Hospital Affiliated Physicians
Address
Orange County Ear, Nose & Throat - Laguna Hills
24411 Health Center Drive
Suite 600
Laguna Hills, CA 92653
Accepting New Patients

Primary Office

Address
Orange County Ear, Nose & Throat - Laguna Hills
24411 Health Center Drive
Suite 600
Laguna Hills, CA 92653
Get Directions
Phone
(949) 305-8000
Fax
(949) 305-8001
Hours
Mon- Fri 9 a.m.- 5 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Otolaryngology
  • Biography

    Biography

    Biography
    Dr. John Sun completed his undergraduate degree at Dartmouth College with Honors in Biochemistry. He then obtained his medical degree (MD) from Washington University in St. Louis, MO. During medical school, he also received a masters degree (MA) in hearing research. He then completed his residency in the Department of Otolaryngology at Washington University in St. Louis, MO. Dr. John Sun's field of interest during his residency training was in hearing and balance research.

    Prior to starting his practice in Orange County, Dr. John Sun had a special interest in inner ear research. He started his research in studying noise induced inner hair cell damage. He then progressed to studying microbiology of the vestibular (balancing) system in Europe. Dr. John Sun received national research funding in the United States as well as in Europe. Although he started in academia, he realized his real desire is to serve the community where his family resides.

    Dr. John Sun is board certified in Otolaryngology-Head and Neck Surgery. He is a member of numerous professional organizations, including the American Medical Association, the California Medical Association, and American Academy of Otolaryngology-Head and Neck Surgery. Dr. John Sun has been elected by his peers for inclusion in Best Doctors in America for 2017-2018. The prestigious recognition marks the fourth time that he has earned this honor.

    Dr. John Sun was born in Taipei, Taiwan and spent his childhood years in Van Nuys, CA. His primary language is English however he is also fluent in Mandarin. Dr. John Sun is married and has a daughter and two sons. In his free time he enjoys competing in triathlons and coaching his children in sport