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.

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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.

Maruja Diaz-Arjonilla, MD

4.8 out of 5 (79 Ratings)
Specialty
  • Endocrinology, Diabetes & Metabolism
    (Board Certified)
Additional Language Spoken
Spanish
Address
St. Joseph Heritage Medical Group
2212 E. 4th St., Suite 304
Santa Ana, CA 92705
Accepting New Patients
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Primary Office

Address
St. Joseph Heritage Medical Group
2212 E. 4th St., Suite 304
Santa Ana, CA 92705
Get Directions
Phone
(714) 288-3230
Fax
(714) 571-7719
Hours
M, Tu, Wed, Fri: 8 a.m. - 5 p.m. Thu: 8 a.m. - 12 p.m.

More Information

Website
www.sjhmg.org
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group

Video

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Endocrinology, Diabetes & Metabolism
      (Board Certified)
    Secondary Specialties
    • Internal Medicine
      (Board Certified)
    Education & Training
    • Medical School
      Universidad Central de Venezuela, Caracas, Venezuela - 1990
    • Internship
      Universidad Central de Venezuela, Caracas, Venezuela - 1992
    • Residency
      UCSF - Fresno- Fresno, CA - 2007
    • Fellowship
      Harbor, UCLA Medical Center- Los Angeles, CA - 2009
  • Biography

    Biography

    Biography
    As an endocrinologist, I care for many conditions including: diabetes, thyroid disease, calcium and metabolism disorders and adrenal and pituitary gland conditions. I practice patient-centered care, emphasizing in two-way communication and patient and family education.
  • 20-Jun-2018
    Dr. Diaz is an exceptional doctor! Dr. Diaz has a very calming demeanor & is certainly very interested in the well being of her patients. I am very blessed to have her as my endocrinologist!
    4-Jun-2018
    Very good.
    26-May-2018
    No medications were given.
    11-May-2018
    *Dr. Diaz has been a very good dr. and I have a lot of confidence - with her - She's been helping me a lot.
    30-Apr-2018
    Thoroughly, *Dr. Diaz explained my options. She allowed me to make my own decision, as to how to proceed.
    11 Total Comments Page 1 2 3   Next
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    More Info
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