John Belperio, MD Appointed Chief of the UCLA Division of Pulmonary, Critical Care, Sleep Medicine, Clinical Immunology and Allergy

After a competitive national search, the UCLA Department of Medicine is pleased to announce the appointment of John Belperio, MD as the chief of the UCLA Division of Pulmonary, Critical Care, Sleep Medicine, Clinical Immunology and Allergy effective March 1, 2025. Dr. Belperio has served as interim chief of the division since 2021.

Dr. Belperio serves as the Guitaiara Pierpoint Endowed Chair of Interstitial Pulmonary Fibrosis at the David Geffen School of Medicine at UCLA and is a member of the Jonsson Comprehensive Cancer Center. He is a highly-regarded expert on lung disease and lung transplant, with more than 22 years of uninterrupted peer-reviewed federal funding for his research at UCLA. His laboratory studies lung transplant rejection — which affects about half of all lung transplant recipients within five years of the procedure — and how immune mechanisms contribute to pulmonary fibrosis, COPD, and Sarcoidosis.

Dr. Belperio is internationally renowned for clinical work on complex cases of sarcoidosis, rare interstitial lung diseases, idiopathic pulmonary fibrosis, lung transplant and pulmonary vasculitis. He has authored nearly 200 publications on lung disease and has received numerous teaching awards at UCLA, including five from the UCLA Internal Medicine Residency Program and three from the UCLA nursing staff. In December 2024 he received the UCLA Younes Nazarian Humanitarian Prize, given annually to a UCLA Health practitioner whose clinical care, medical research and technological innovations advance humanity.

John A. Belperio, MD

Dr. Belperio joined the UCLA Division of Pulmonary, Critical Care, Sleep Medicine, Clinical Immunology and Allergy immediately after completing a fellowship in pulmonary and critical care medicine at the University of Michigan Health System. His residency in internal medicine took place at the University of Maryland at Baltimore, and he obtained his medical degree from Temple University School of Medicine. Prior to attending medical school, he earned an undergraduate degree in chemical engineering from Drexel University and worked for United Engineers in Philadelphia.

We are grateful to the search committee under leadership of Dr. Raphael Landovitz for their strong efforts in identifying qualified candidates for this important role.

Please join us in congratulating Dr. Belperio. We look forward to his continued leadership in the pulmonary, critical care, sleep medicine clinical immunology and allergy division and working alongside him to advance the division’s clinical, research, and education goals


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