Summary

Dr. Maruja Diaz Arjonilla specializes in endocrinology, diabetes, and metabolism, bringing 36 years of clinical expertise to her practice. She earned her medical degree from Universidad Central de Venezuela and completed her residency at UCSF - Fresno in 2007, followed by a fellowship at Harbor UCLA Medical Center in 2009. Dr. Diaz Arjonilla provides care in both English and Spanish to serve her diverse patient community.

Dr. Diaz Arjonilla practices at Saint Joseph Hospital Orange and sees patients in Orange, California. She focuses on managing complex diabetes cases, including Type 2 diabetes in both adults and younger patients. Her expertise includes treating serious blood sugar emergencies and using advanced monitoring techniques like continuous glucose monitoring. She also performs specialized imaging studies of the thyroid and parathyroid glands to help diagnose hormone-related conditions.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 2.3
  • 36 years of experience
  • 27 insurance plans accepted
  • speaks English, Spanish
  • Harbor UCLA Medical Center
  • 7 written reviews
  • 2 specialties
  • 19 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Female

Patients’ Perspective

  • Spent time with me

Office Location

St. Joseph Heritage Orange - Chapman

2501 E Chapman Ave Ste 203Orange, CA 92869

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Maruja Del Valle Diaz Arjonilla, MDDr. Emily Clark King, MDDr. Maria Morkos Magar, MDDr. Samantha Reed Harris, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismInternal MedicineEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients
2.3 
36 Years of Experience 14 Years of Experience 10 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English
Orange , CASan Dimas , CABaldwin Park , CAOrange , CA
Med School: Universidad Central de Venezuela Med School: University of California San Francisco School of Medicine Med School: George Washington University School Of Medicine & Health Sciences
Current Profile
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Insurance Plans Accepted by Maruja Del Valle Diaz Arjonilla

  • Accepts Medicare
  • 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 - HMO
  • Health Net - Medicare Advantage
  • 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

Medical Specialties

Maruja Del Valle Diaz Arjonilla has the following 2 specialties

Specialty Expertise

Maruja Del Valle Diaz Arjonilla has the following 19 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cancer
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes, Type 2
  • Endocrinology & Metabolism
  • Fatigue
  • Gland Issues
  • Growth Disorders
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Lipid Metabolism Disorders
  • Nutrition Disorders
  • Obesity
  • Thyroid Diseases

Certifications, License, & Education

36 Years Experience

Maruja Del Valle Diaz Arjonilla holds an active medical license in the state of California.

Medical License

Medical Doctor with an active medical license in the state of California that expires in 2026.

Education & Training

Fellowship

Completed their fellowship at Harbor UCLA Medical Center in 2009.

Residency

Completed their residency at UCSF - Fresno in 2007.

Internship

Completed their internship at Universidad Central de Venezuela in 1992.

Medical School

Graduated from Universidad Central de Venezuela in 1990.

NPI Number

Maruja Del Valle Diaz Arjonilla's NPI number is 1841481074.

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Frequently Asked Questions

Is Maruja Diaz Arjonilla accepting new patients?
Maruja Diaz Arjonilla is accepting new patients on Vitals. View Maruja Diaz Arjonilla's profile on Vitals to make an appointment.
Does Maruja Diaz Arjonilla accept virtual/telehealth appointments?
Maruja Diaz Arjonilla has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Maruja Diaz Arjonilla?
You can find contact information for Maruja Diaz Arjonilla here on Vitals.
Does Maruja Diaz Arjonilla accept my insurance?
You can see the insurance plans that Maruja Diaz Arjonilla accepts on their Vitals profile.
Where is Maruja Diaz Arjonilla's office located?
Maruja Diaz Arjonilla's office is located at 2501 E Chapman Ave Ste 203, Orange, CA, 92869.

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