Careers With St. Joseph Health

Our Values are more than just words.

They form the heart and soul of St. Joseph Health and are the prime reason we attract and retain high-caliber employees who believe in the sanctity of their work in our faith-based setting.

Recent News

Irvine school nurses, staff learn Stop the Bleed techniques to respond in mass-casualty situation

Irvine school nurses and athletic trainers on Tuesday, Jan. 30, learned simple techniques that could save lives in a shooting or other ...

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Families anticipate exciting community blessing of surgical center

A community is as strong as its hospital, and with recent investments into Covenant Health Plainview, it’s evident that to our friends ...

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Severe Flu Season Tightens Its Grip on U.S.

Americans are being hit with one of the worst flu seasons in years, with misery now widespread across 46 states, health officials say. In ...

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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.

Christopher Chang, MD

  • Allergy and Immunology
1100 Pear Tree Lane
Napa, CA 94558
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Primary Office

1100 Pear Tree Lane
Napa, CA 94558
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(707) 258-8100

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  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Allergy and Immunology
    Education & Training
    • Medical School
      Georgetown University
    • Fellowship
      University of California, Davis
    • Residency
      Children’s Hospital of Los Angeles
  • Biography


    Dr. Chang has published extensively on topics ranging from asthma to autoimmune diseases, with more than 100 publications in national and international journals and various textbooks. He is the founder of the International Association of Chinese Allergists, Immunologists and Dermatologists (IACAID), the Editor-in-Chief of Integrative Medicine Insights and the Associate Editor of Clinical Reviews in Allergy and Immunology. Dr. Chang is also Clinical Professor of Medicine and the Associated Director for the Allergy and Immunology Fellowship at UC Davis. As an experienced researcher, Dr. Chang collaborates with UC Davis on basic and translational research in food allergies. He is also a clinical investigator, conducting clinical trials in asthma, allergic rhinitis, urticaria and other allergic diseases at North Bay Clinical Trials, Inc.
    Board Certified: Allergy and Immunology
    Board Certified: Pediatrics
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