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

Holly L. Leo, MSN, NP

4.9 out of 5 (124 Ratings)
  • Family Medicine
  • Wellness & Weight Loss
  • Women and Adult Health
St. Joseph Medical Group
14642 Newport Ave
Suite 200
Tustin, CA 92780

Primary Office

St. Joseph Medical Group
14642 Newport Ave
Suite 200
Tustin, CA 92780
Get Directions
(714) 669-4466
(714) 669-4088
Mon, Tue, Thu, Fri 8 a.m. - 4 p.m.

More Information

Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Family Medicine
    • Wellness & Weight Loss
    • Women and Adult Health
    Education & Training
    • College
      University of San Diego- San Diego, CA - 1998
    • College
      Mount Saint Mary's College- Los Angeles, CA - 1989
  • Biography



    Holly Leo has been in the medical field since 1986. She started her nursing career ad a Licensed Practical Nurse after graduating from a branch of the University of Hawaii, at Kauai Community College on the island of Kauai. Holly graduated from L.A. Pierce College with an AA degree in Registered Nursing in 1987. she then graduated from Mount Saint Mary's College Degree as a Family Nurse Practitioner from the University of San Diego. Her work history includes Oncology and bone marrow/stem cell transplant at UCLA and as a breast cancer clinical case coordinator at UCSD.

    Holly has practiced as a Family Practice Nurse Practitioner with W. Robert Crumpton, M.D. in Tustin since May 1998. The practice joined St. Joseph Heritage Health in April of 2017. Holly's father is a retired Chiropractor, and she was raised in a health-conscious environment, "Our family ate health food before being "Organic" was fashionable". Her goal is to view each patient individually to help them find the best way to stay well. Health promotion and illness prevention is her focus. Utilizing diet, hormone balancing and stress reduction she has been able to help her patients improve their health.

    American Nurses Credentialing Center, Family Nurse Practitioner Board Certification, No. 0313508, 1998-Present
    Nurse Practitioner Certificate, State of California, No. 9734, 1998-Present
    Public Health Nursing Certificate, State of California, No. 46317, 1990
    Registered Nurse License, State of California, No. 415786, 1987-Present
    Certified Weight Loss Management, Ideal Protein
  • 8-Jun-2018
    *Holly Leo is exceptional.
    Holly took time to call me about unexpected test results. She explained possible courses of action and assured me of her support through the process. I am extremely grateful that I have provider who is knowledgeable, responsive, and thoughtful.
    *Holly is SO knowledgeable!
    Holly is the best! I always know I'm going to be getting the best care
    29 Total Comments Page 1 2 3 4 5 6   Next