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Mark D. Weissig, MD
Practice accepting new patients.

Mark D. Weissig, MD

(714) 626-8650
Primary Specialties
  • Pulmonology
    (Board Certified)
Secondary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Jude Heritage Medical Group
  • Additional Languages Spoken

Primary Office

St. Jude Heritage Fullerton - Plaza Dermatology
2141 North Harbor Boulevard
Suite 25000
Fullerton, CA 92835
(714) 626-8650
(714) 626-8696
Web Page:
Recommend this Physician
4.8 out of 5 (151 Ratings | 40 Comments)


*Dr. Weissig Mark is taking care of my health for many years. I have follow-ups from 2 to 3 times a year.
I have only the highest regard for *Dr. Mark Weissig. He is a calm & detailed oriented physician who genuinely cares about his patients. He has saved my life on 2 different occasion and I am greatly indebted to this excellent physician.
Dr.Weissig is a very caring Doctor, he listens to your concern. He is an asset to your team of fine Doctors
Dr Weissig is very polite, good listener, clear communicator.
I always have a good experience every time I visit
40 Total Comments Page 1 2 3 4 5 6 7 8   Next


  • Medical School:
    Duke University School of Medicine
  • Internship:
    Duke University Medical Center
  • Residency:
    Duke University Medical Center
  • Fellowship:
    UCLA School of Medicine
  • Board Certified in Internal Medicine
  • Board Certified in Pulmonology

Areas of Interest

Asthma, Sleep disorders, COPD, Smoking Cessation, Pulmonary Fibrosis

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