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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.

Cynthia Hanh Le Bui, MD

  • Pediatrics
    (Board Certified)
Additional Language Spoken
Medical Groups & Affiliations
  • Hoag Affiliated Physicians
Coastal Kids - Irvine
4968 Booth Circle
Suite 106
Irvine, CA 92604
Accepting New Patients

Primary Office

Coastal Kids - Irvine
4968 Booth Circle
Suite 106
Irvine, CA 92604
Get Directions
(949) 387-4900
(949) 387-4945
Mon - Fri: 8 a.m. - 5:30 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Pediatrics
      (Board Certified)
  • Biography


    Cynthia Bui, M.D., grew up in Irvine, just blocks away from Coastal Kids’ Irvine office. Inspired to become a pediatrician at a young age, Dr. Bui has always looked up to her own pediatrician for her compassionate and caring nature as well as her dedication to her patients. She has sought to emulate her mentor’s approach–and more–to provide the best possible care for children. Dr. Bui was accepted into medical school right out of Woodbridge High School as part of a specialized program at Brown University. She received both her Bachelor of Science and medical degree from Brown. During this time, Dr. Bui traveled to Vietnam to provide primary care to children as part of a medical mission and to complete research on child environmental health. Despite spending eight years on the East Coast, Dr. Bui’s heart was always in Southern California and she happily returned to Orange County to complete her pediatrics residency at UCI-CHOC. Dr. Bui joined Coastal Kids in 2016 embracing the opportunity to fulfill her childhood dream of caring for children in her hometown. When not working, Dr. Bui loves running, watching the Lakers and Cowboys play, spending time with her family, friends, and fiancé, and taking care of their dogs, Vega and Kobe.
  • Insurance Accepted

    Insurance Accepted

    Insurance ID Numbers

    Aetna: Pending
    Blue Cross: *YNL204
    Blue Shield: 0A1342221
    CIGNA: Pending
    CIGNA Select: Pending
    Health Net: 3620227279
    Health Net Senior: n/a
    SCAN: n/a
    United Healthcare: *027963-0107

    *Provider ID is the same for both HMO and Medicare Advantage Plans