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

Irvine school nurses, staff learn Stop the Bleed techniques to respond in mass-casualty situation

Irvine school nurses and athletic trainers on Tuesday, Jan. 30, learned simple techniques that could save lives in a shooting or other ...

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Families anticipate exciting community blessing of surgical center

A community is as strong as its hospital, and with recent investments into Covenant Health Plainview, it’s evident that to our friends ...

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Severe Flu Season Tightens Its Grip on U.S.

Americans are being hit with one of the worst flu seasons in years, with misery now widespread across 46 states, health officials say. In ...

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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

Cristina Hernandez O'Day, MD

4.5 out of 5 (87 Ratings)
Specialty
  • Obstetrics/Gynecology
    (Board Certified)
Additional Language Spoken
Spanish
Address
St. Joseph Heritage Medical Group
1140 W. La Veta Ave.
Suite 770
Orange, CA 92868
Accepting New Patients

Primary Office

Address
St. Joseph Heritage Medical Group
1140 W. La Veta Ave.
Suite 770
Orange, CA 92868
Get Directions
Phone
(714) 835-8715
Fax
(714) 835-8683
Hours
Mon - Fri: 9 a.m. - 5 p.m.

More Information

Website
www.sjhmg.org
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
  • St. Joseph Hospital Affiliated Physicians

Video

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Obstetrics/Gynecology
      (Board Certified)
    Education & Training
    • College
      University of Southern California - 2003
    • Medical School
      Medical UC Irvine - 2007
    • Internship
      UC San Diego - 2010
    • Residency
      UC San Diego - 2011
    Areas of Interest

    Minimally Invasive Surgery - Robotics Laparoscopy and Hysteroscopy

  • Biography

    Biography

    Biography

    Dr. Cristina Hernández O'Day ignites her practice with a fresh perspective and a deep passion for providing quality women's health services. She was delivered, taught and inspired by her father, Dr. Jesús Hernández. Dr. Cristina Hernández O'Day is bilingual with a dual Hispanic and Asian American cultural background.

    Dr. Hernandez O'Day graduated Magna Cum Laude for her Bachelor of Science degree in Health Promotion and Disease Prevention from the University of Southern California, with minors in the Natural Sciences and Spanish. As a graduate of the University of California, Irvine Medical School, Dr. Hernández O'Day was elected to the prestigious Alpha Omega Alpha Honor Society for her excellence in scholarship and the highest ideals in the profession including ethical standards, dedication to serving others and leadership. She completed her residency at University of California San Diego with extensive training in minimally invasive surgery which minimizes patients scarring, pain and recovery time.

    "I love the obgyn specialty because as a woman myself, I can relate to so many of my patients' concerns and I get to build a relationship and care for a patient throughout her lifetime. Pregnancy is especially rewarding because it is a privilege to be a part of a new little miracle of life."

    – Dr. Cristina Hernández O'Day

  • 24-Apr-2018
    fist time I saw this provider
    11-Mar-2018
    *Dr. O'Day is very warm and welcoming. She makes me feel comfortable. Sometimes our visits feel rushed.
    31-Jan-2018
    My daughter referred me to Dr. O"Day because Dr. O'Day is her doctor. A daughter would not refer her mother to a doctor without the greatest of confidence herself in this doctor. I could not thank my daughter enough after my visit with Dr. O"Day. I actually felt great after my visit. I can now relax, as I feel I'm in the greatest of hands as I continue my upcoming visits with her.
    23-Jan-2018
    *Dr. O'Day and her staff are very caring and professional.
    18-Jan-2018
    I would have liked to have heard "what other questions do you have for me?"
    13 Total Comments Page 1 2 3   Next