Summary

Dr. Cristina O'day is a board-certified obstetrician and gynecologist with 19 years of experience caring for women throughout their reproductive health journey. She earned her medical degree from UC Irvine and completed both her internship and residency at UC San Diego in 2010 and 2011, respectively. Dr. O'day is fluent in both Spanish and English, enabling her to serve a diverse patient population.

Dr. O'day practices at Saint Joseph Hospital Orange and sees patients at the St. Joseph Heritage Medical Group Helen Caloggero Center in Orange, California. She specializes in managing high-risk pregnancies and provides comprehensive care for women who become pregnant after age 30. Her expertise extends to addressing antepartum depression, helping expectant mothers navigate both the physical and emotional aspects of pregnancy. Patients rate Dr. O'day 2.5 out of 5 stars on average.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 2.5
  • 19 years of experience
  • 27 insurance plans accepted
  • speaks Spanish, English
  • UC San Diego
  • 4 written reviews
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Female

Office Location

St. Joseph Heritage Medical Group - Helen Caloggero Center

363 S Main St Ste 345Orange, CA 92868

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Dr. Cristina Hernandez O'day, MD
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Dr. Cristina Hernandez O'day, MDDr. Ingrid Anne Rodi, MDDr. Jennifer Lauren Broad, MDDr. Michael D Andersen, MD
Obstetrics & GynecologyObstetrics & GynecologyObstetrics & GynecologyObstetrics & Gynecology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
2.5 
4.7 
3.8 
19 Years of Experience 47 Years of Experience 17 Years of Experience 33 Years of Experience
Virtual Visit Available Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks English, Portuguese, German Speaks English, Spanish, Arabic, Romanian Speaks English, Spanish
Orange , CALos Angeles , CANewport Beach , CAMurrieta , CA
Med School: Medical UC Irvine Med School: Warren Alpert Medical School Of Brown University Med School: Loma Linda University School Of Medicine Med School: St Louis University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Cristina Hernandez O'day

  • 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

Dr. Cristina Hernandez O'day has the following specialty

Specialty Expertise

Dr. Cristina Hernandez O'day has the following 11 areas of expertise

  • Birth Control
  • C-section
  • Child Birth
  • Hot Flashes
  • Infertility
  • Menopause
  • Menstrual Pain
  • Pap Smear
  • Pelvic Exam
  • Pregnancy
  • Women's Health

Certifications, License, & Education

19 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Expired

EDUCATION & TRAINING

Residency

UC San Diego2011

Internship

UC San Diego2010

Medical School

Medical UC IrvineGraduated in 2007

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Frequently Asked Questions

Which hospitals is Dr. Cristina O'day affiliated with?
Dr. Cristina O'day is affiliated with Saint Joseph Hospital Orange.
Does Dr. Cristina O'day accept virtual/telehealth appointments?
Yes, Dr. Cristina O'day accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
What languages does Dr. Cristina O'day speak?
Dr. Cristina O'day speaks Spanish and English.
Where is Dr. Cristina O'day's office located?
Dr. Cristina O'day's office is located at 363 S Main St Ste 345, Orange, CA, 92868.
Does Dr. Cristina O'day accept my insurance?
You can see the insurance plans that Dr. Cristina O'day accepts on their Vitals profile.

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