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Recent News

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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.

Thai D Nguyen, MD

  • Internal Medicine
    (Board Certified)
Additional Language Spoken
Vietnamese, English
Medical Groups & Affiliations
  • St. Joseph Hospital Affiliated Physicians
Theresa Thanh Ngoc Nguyen, MD Inc.
15576 Brookhurst Street
Suite B
Westminster, CA 92683
Accepting New Patients

Primary Office

Theresa Thanh Ngoc Nguyen, MD Inc.
15576 Brookhurst Street
Suite B
Westminster, CA 92683
Get Directions
(714) 775-8090
(714) 775-2998
Mon - Wed: 9 a.m. - 5:30 p.m. F: 9 a.m. - 5:30 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Internal Medicine
      (Board Certified)
    Education & Training
    • Medical School
      University of Iowa - 2003
    • Residency
      Kaiser - Santa Clara - 2006
  • Biography


    Dr. Nguyen graduated from the University of California Davis School of Medicine in 1978. Dr. Nguyen works in Westminster, CA and specializes in Internal Medicine. Dr. Nguyen has 41 years of experience.
  • Insurance Accepted

    Insurance Accepted

    Insurance ID Numbers
    Aetna: *321854
    Blue Cross: *0WX556
    Blue Shield: 00A910240
    CIGNA: 6709252010
    CIGNA Select: 0001020799
    Health Net: 3204134874
    Health Net Senior: 5148134874
    SCAN: 864-190615
    United Healthcare: *0183470456
    *Provider ID is the same for both HMO and Medicare Advantage Plans