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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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.

Mark S. Sugar, MD

Specialty
  • Allergy and Immunology
Additional Language Spoken
English
Address
27800 Medical Center Rd.
Suite 244
Mission Viejo, CA 92691
Accepting New Patients

Primary Office

Address
27800 Medical Center Rd.
Suite 244
Mission Viejo, CA 92691
Get Directions
Phone
(949) 364-2900
Fax
(949) 365-0117

More Information

Website
www.mission4health.com
Medical Groups & Affiliations
  • Allergy & Asthma Associates
  • Mission Hospital Affiliated Physicians
  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Allergy and Immunology
    Education & Training
    • Medical School
      University of Maryland- Medical School
    • Internship
      San Bernardino County Medical Center- San Bernadino, CA
    • Residency
      Kaiser Foundation Hospital - Fontana
    • Fellowship
      UCLA Medical Center- Los Angeles, CA - 1985
    Areas of Interest

    Allergy/Immunology

  • Biography

    Biography

    Biography

    Seeing patients improve and being part of that ongoing process is very rewarding to me.

    Certifications
    American Board of Allergy and Immunology

    American Board of Pediatrics
    Areas of Expertise
    Asthma and Allergy, Immune Deficiencies