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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

Primary Office

2141 N. Harbor Blvd.
Suite 2500
Fullerton, CA 92835
(714) 626-8650
(714) 626-8696
Web Page:
Recommend this Physician Request an Update for this Physician
4.8 out of 5 (138 Ratings | 27 Comments)


Very satisfied with Dr. Mark Weissig, and follow-up will be in July
Was a rushed and limited visit focused on getting pre-surgery report done, then scheduling subsequent activities
He was polite and knowledgeable but rather standoffish. This was an initial consult so perhaps after the tests are completed I will feel differently.
*Dr. Weissig is excellent. He is/was caring & compassionate to my needs & concerns. And went out of his way to accomodate my needs e.g. inhalers, coupons for purchase of inhaler. Very kind person.
27 Total Comments Page 1 2 3 4 5 6   Next


  • 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
  • Board Certified in Internal Medicine
  • Board Certified in Pulmonology

Areas of Interest

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

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