Dr. O'brien graduated from the University of Texas Medical School at Houston in 1984. He works in Thornton, CO and 2 other locations and specializes in Allergy & Immunology. Dr. O'brien is affiliated with Sky Ridge Medical Center and Swedish Medical Center.
Allergy & Immunology
Medical School: University of Texas Medical School at Houston; Graduated 1984
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*This physician has multiple office locations. See Office Information for details.