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 D. Weissig, MD

4.7 out of 5 (124 Ratings)
  • Pulmonology
    (Board Certified)
2141 N. Harbor Blvd.
Suite 2500
Fullerton, CA 92835
Accepting New Patients

Primary Office

2141 N. Harbor Blvd.
Suite 2500
Fullerton, CA 92835
Get Directions
(714) 626-8650
(714) 626-8696

More Information

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

    Specialties & Education

    Primary Specialties
    • Pulmonology
      (Board Certified)
    Secondary Specialties
    • Internal Medicine
      (Board Certified)
    Education & Training
    • Medical School
      Duke University School of Medicine- Durham, NC
    • Internship
      Duke University Medical Center- Durham, NC
    • Residency
      Duke University Medical Center- Durham, NC
    • Fellowship
      UCLA School of Medicine- Los Angeles, CA
  • 12-Jun-2018
    I have had talk with doctor & hoping things better. I do respect doctor or would not continue. Too many patients!
    Shows interest and cares about my physical, mental and spiritual health.
    My health would not be as good as it is now if it wasn't for *Dr. Mark Weissig. He has kept me alive.
    Very satisfied with Dr. Mark Weissig, and follow-up will be in July
    18 Total Comments Page 1 2 3 4   Next