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

What does

What does "Healthy" actually mean?

| Contributor: OC Catholics Read More
Queen to receive $1.5 million for cancer care

Queen to receive $1.5 million for cancer care

| Contributor: Napa Valley Register Read More
Where tech meets health: One Year of 3D Mammography at St. Joseph Hospital

Where tech meets health: One Year of 3D Mammography at St. Joseph Hospital

| Contributor: kiem-tv Read More

Here you can find news articles and press releases from St. Joseph Health and it's locations.

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.

Giving back to the community. St. Joseph Health System Office

Maruja Diaz-Arjonilla, MD

4.8 out of 5 (76 Ratings)
Specialty
  • Endocrinology, Diabetes & Metabolism
    (Board Certified)
Additional Language Spoken
Spanish
Address
2501 E. Chapman Ave.
Suite 202
Orange, CA 92869
Accepting New Patients
HealthCalling
View Posts

Primary Office

Address
2501 E. Chapman Ave.
Suite 202
Orange, CA 92869
Get Directions
Phone
(714) 628-3313
Fax
(714) 662-7403

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
    Secondary Specialties
    • Internal Medicine
    Education
    • 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.
  • 23-Oct-2017
    I wish *Dr. Diaz could be my general practitioner. She is very thorough & explains everything.
    13-Sep-2017
    excellent care! The Dr listened, reviewed and gave me recommendations regarding my medication, vitamins and possible reasons for various symptoms. I was amazed by her detail to what I was experiencing and her knowledge of medication vs vitamins and current studies
    10-Sep-2017
    *Dr. Diaz is great! She is very caring & informative!
    23-Aug-2017
    I like *Dr. Diaz very much. She is very great in explaining and was the one who found my illness of thyroid cancer.
    18-Jul-2017
    #7. All of the...
    13 Total Comments Page 1 2 3   Next
  • More Info

    More Info
    HealthCalling

    Stay in touch with our experts for the latest wellness topics and news.