Dr. Nietrzeba has been practicing as a pulmonologist at The Lung Center of Nevada since 1982. He is Fellow of the College of Chest Physicians and serves as Associate Medical Director of the Pulmonary Department and Director of the Pulmonary Function Lab at Southern Hills Hospital, Mountain View Hospital and Sunrise Hospital.
In June 2015, Comprehensive Cancer Centers of Nevada (CCCN) and The Lung Center of Nevada joined forces creating an entire division dedicated to lung disease and sleep disorders at CCCN.
As part of Lung Center of Nevada, a division of Comprehensive Cancer Centers of Nevada, Dr. Nietrzeba treats patients with lung disease and sleep disorders including asthma, emphysema, chronic bronchitis, chronic cough, nicotine dependence, snoring and obstructive sleep apnea.
Prior to joining The Lung Center of Nevada, he was Clinical Professor for the Department of Family Practice and Community Medicine at University of Utah, member of the intermountain Respiratory Intensive Care Unit air transportation team as well as co-designer and co-supervisor of the exercise pulmonary rehabilitation program at LDS Hospital in Salt Lake City, Utah.