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Medical Group Provider

Maruja Diaz Arjonilla, MD

4.8 out of 5 (212 Ratings)
Specialty
  • Endocrinology
    (Board Certified)
Languages
Spanish, English
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The Golden State Patient Experience Awards is Providence’s California-wide program recognizing providers in Northern and Southern California who consistently deliver outstanding patient experiences, based on patient feedback and experience scores.

Primary Address | Office Details
St. Joseph Heritage Orange - Chapman
2501 East Chapman Avenue
Suite 203
Orange, CA 92869

Phone: (714) 628-3230

Secondary Address | Office Details
St. Joseph Heritage Santa Ana - Suite 304

2212 East 4th Street

Suite 304

Santa Ana, CA 92705

Phone: (714) 288-3230

Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
  • St. Joseph Hospital (Orange)
Get Connected
to Your Provider (714) 628-3230
  • Reviews

    Reviews

    Ratings are based on patient responses from an independent and verified survey tool (Press Ganey). Scores are displayed in their entirety with only a few exceptions. Learn more about our survey.
    Dr is apathetic. I gad major surgery in July. Have seen this provider twice since surgery. Not once has she asked how I'm doing since my surgery. Just looks at the labs, checks the boxes, refills/adjusts Rx and send me on my way. No compassion, no suggestions just follows the script.
    25-Nov-2025
    Thank you for entrusting us with your care. We regret to know your experience in our medical offices was as described and we would like to examine this more thoroughly. Please email us at Transparency@stjoe.org with comment ID 209847397 in the subject line so that we can obtain more information to deal with the situation.
    Always good experiences.
    Excellent care.
    In regards to my medical visits with Dr. Diaz, I have nothing but gratitude and praise for her professionalism and the excellent care that I always receive whenever I have appointments with her. She listens intently to my concerns and with her, I feel that we actually work together as a team to come to whatever treatment plan works best for my health. Dr. Diaz comes across as as emphatic, honestly, respectful, intelligent and highly professional. She is a gem!
    Honestly speaking, Dr. Diaz always has demonstrated her concern for my well being, I'm thankful that I'm not treated like a number she is genuinely concerned about my thyroid condition and diabetes getting under control.. So thankful that I have a doctor who cares
    76 Total Comments Page 1 2 3 4 5 6 7  . . . 12 13 14 15 16   Next
  • Meet The Provider
    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. Read More
    Primary Specialties
    Primary Specialties
    • Endocrinology
      (Board Certified)
    Other Specialties
    Other Specialties
    • Internal Medicine
    Associations
    Associations
    • American Association of Clinical Endocrinologists
    • The Endocrine Society
    Areas of Interest
    Areas of Interest
    Diabetes, Osteoporosis, Autoimmune Disorders, Thyroid Disorders, Endocrine Disorders
    Certifications
    Board Certifications

    American Board of Internal Medicine, Endocrinology Diabetes and Metabolism
    Education
  • Insurance Accepted

    Insurance Accepted

    • Insurance Plan

    • Aetna HMO
    • Aetna Medicare Advantage HMO
    • Aetna Medicare Advantage PPO
    • Aetna PPO
    • Anthem Blue Cross HMO
    • Anthem Blue Cross Medicare Advantage
    • Anthem Blue Cross Medicare PPO
    • Anthem Blue Cross PPO
    • Blue Shield of CA HMO
    • Blue Shield of CA HMO - Trio
    • Blue Shield of CA Medicare Advantage
    • Blue Shield of CA PPO
    • Cigna HMO
    • Cigna PPO
    • Coventry/First Health PPO
    • Health Net - Medicare Advantage
    • Health Net HMO
    • Health Net PPO
    • HealthSmart (Interplan) PPO
    • Multiplan PPO
    • Providence Health Plan - Medicare Advantage
    • SCAN Medicare Advantage
    • TriWest - Tricare
    • United Healthcare HMO
    • United HealthCare PPO
    • US Family Health Plan - TriCare
    • Vivity by Anthem Blue Cross
 

St. Joseph Heritage Orange - Chapman

Website Information
www.sjhmg.org

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  • Secondary Location

St. Joseph Heritage Santa Ana - Suite 304

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