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

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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.

Silvia Alonzo, PA

4.8 out of 5 (139 Ratings)
  • Family Medicine
Additional Language Spoken
Medical Groups & Affiliations
  • California Academy of Physician Assistants
St. Jude Heritage Medical Group
1514 Valley Vista Drive
Diamond Bar, CA 91765

Primary Office

St. Jude Heritage Medical Group
1514 Valley Vista Drive
Diamond Bar, CA 91765
Get Directions
(909) 860-1144
(909) 860-8307
Mon - Thurs 7:30 a.m. - 6 p.m. Fri 7:30 a.m. - 5:30 p.m.
Weekend Hours
Sat 9 a.m. - 1 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Family Medicine
    Education & Training
    • College
      Bachelor's Degree - 2006
    • College
      Master of Science: Physician Assistant Studies - 2011
  • Biography


    State of California Physician Assistant Board Certification 2011 National Commission on Certification of Physician Assistants 2011
  • 31-Mar-2019
    Exceptional care and CONCERN for my problem. Could not be happier with Silvia. She was fantastic.
    Alonso is very attentative, understanding and knowledgeable which is the reason why I return. she really makes me feel like she cares and takes the time to explain and walk me through exams when necessary.
    *Silvia Alonzo is very pleasant to work with.
    I always get good care thanks st jude
    Sylvia Alonzi's thoroughness, care & concern expedited the analysis of an existing breast lump that resulted in a Breast cancer diagnosis in * Ms. Alonzo is an asset to St. Jude. I'm grateful she was olaced in my life at the right time.
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