Mark D Weissig, M.D.
Pulmonary Disease Internal Medicine
Mark Weissig, M.D. has been part of the Fullerton medical community since 2005 in group practice. A Duke University School of Medicine graduate since 1980, he brings 46+ years of experience. Pulmonologists specialize in respiratory conditions including asthma, COPD, pneumonia, pulmonary fibrosis, sleep apnea, and more.
Data updated 2013-04-25 on CMS NPPES
Contact & Location
Practice Location
2141 N Harbor Blvd Suite 25000, Fullerton, CA 92835-3827
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Pulmonologists specialize in respiratory conditions including asthma, COPD, pneumonia, pulmonary fibrosis, sleep apnea, and lung cancer screening. They manage patients on ventilators and perform bronchoscopies.
Taxonomy: 207RP1001X
Education & Training
Duke University School of Medicine (Class of 1980)
Virtual Pulmonary Disease Care With Mark Weissig
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark Weissig for follow-ups, medication reviews, and ongoing care — no travel to Fullerton required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Mark Weissig
NPI records show Dr. Weissig as active with telehealth listed in Fullerton, CA. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (714) 626-8610.
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Contact Mark Weissig
Practice Location
2141 N Harbor Blvd Suite 25000, Fullerton, CA 92835-3827
Mailing Address
279 Imperial Hwy Suite 730, Fullerton, CA 92835-1041
This is a provider directory. Contact the office directly to schedule appointments.
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