Summary

I am honored that patients trust me to help them in their most vulnerable state.Maria Olivia Ortiz Castillo, M.D., is a board-certified internist who is dedicated to providing the best possible care to patients when they enter the hospital, perhaps the most challenging time in their lives. Dr. Castillo has a decade of experience as a trained hospitalist at facilities across Southern California, and she relishes the challenge “to create strategic plans to improve health and health care outcomes for patients with complex conditions.”Dr. Castillo received her medical degree from UCLA’s David Geffen School of Medicine and continued her training with an internship and residency at Huntington Memorial Hospital in Pasadena, California.Dr. Castillo prides herself on the relationships she forms with her patients. She’s delighted to join the City of Hope® family. “Working with a team on the cutting edge of science looking for novel therapies to aid in this unique population is incredibly rewarding.”
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Quick Facts

  • accepting new patients
  • 4
  • 16 years of experience
  • 66 insurance plans accepted
  • speaks English
  • David Geffen School Of Medicine At Ucla
  • 2 written reviews
  • 1 specialty
  • 7 areas of expertise
  • 1 office location
  • Female

Office Location

City of Hope Comprehensive Cancer Center - Duarte

1500 Duarte RdDuarte, CA 91010
Mon8:00 am - 8:00 pm
Tue8:00 am - 8:00 pm
Wed8:00 am - 8:00 pm
Thu8:00 am - 8:00 pm
Fri8:00 am - 8:00 pm
Sat8:00 am - 8:00 pm
Sun8:00 am - 8:00 pm

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Dr. Maria Olivia Ortiz CastilloDr. Josephine Hoatuyet Haduong, MDDr. Catherine Castro Sherman, DODr. Hany Gaber Bashandy, MD
Hospital MedicinePediatricsHospital MedicineHospital Medicine
Accepts New Patients
3.9 
16 Years of Experience 21 Years of Experience 28 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English, Spanish Speaks English
Duarte , CAOrange , CAOrange , CAIrvine , CA
Med School: David Geffen School Of Medicine At Ucla Med School: University Of Pittsburgh School Of Medicine Med School: University Of Cairo Faculty Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Maria Olivia Ortiz Castillo

  • AARP
  • Adventist Health - Medicaid
  • Aetna
  • Aetna - EPO
  • Aetna - HMO
  • Aetna - Medicare
  • Aetna - POS
  • Alignment Health Plan
  • Allegiance Life and Health
  • AltaMed Senior BuenaCare (PACE) - Medicaid (HMO Plans)
  • Anthem Blue Cross
  • Anthem Blue Cross - HMO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Michigan
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • CalOptima
  • Cigna
  • GEHA
  • Health Net
  • Health Net - HMO
  • Health Net - Medicaid
  • Health Net - Medicaid (HMO Plans)
  • Health Plan of Nevada
  • Health Plan of Nevada - PPO
  • HealthSmart
  • Humana
  • Humana - HMO
  • Inland Empire Health Plan
  • Kaiser Permanente
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid
  • Kaiser Permanente - Medicaid (HMO Plans)
  • Kaiser Permanente - Medicare
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medi-Cal - Medicaid
  • Medi-Cal - Medicaid (HMO Plans)
  • Medicaid - Medicaid
  • Medicaid - Medicaid (HMO Plans)
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - Medicaid
  • Molina Healthcare - Medicaid (HMO Plans)
  • Molina Healthcare - Medicaid (Managed)
  • Mutual of Omaha
  • Optima Health - Medicaid
  • Optima Health - Medicaid (HMO Plans)
  • Physicians Mutual
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • Sierra Health and Life
  • Sierra Health and Life - Medicare
  • Tricare
  • United American
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - POS
  • UnitedHealthcare - PPO

Medical Specialties

Dr. Maria Olivia Ortiz Castillo has the following specialty

Specialty Expertise

Dr. Maria Olivia Ortiz Castillo has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

16 Years Experience

MEDICAL LICENSE

Medical Doctor, Washington, 2026, Active

EDUCATION & TRAINING

Medical School

David Geffen School Of Medicine At UclaGraduated in 2010

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Frequently Asked Questions

Does Dr. Maria Castillo accept virtual/telehealth appointments?
Dr. Maria Castillo has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Maria Castillo accepting new patients?
Dr. Maria Castillo is accepting new patients on Vitals. View Dr. Maria Castillo's profile on Vitals to make an appointment.
What languages does Dr. Maria Castillo speak?
Dr. Maria Castillo speaks English.
Does Dr. Maria Castillo accept my insurance?
You can see the insurance plans that Dr. Maria Castillo accepts on their Vitals profile.
How can I make an appointment with Dr. Maria Castillo?
You can find contact information for Dr. Maria Castillo here on Vitals.

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