Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial lung disease of unknown cause, with median survival of 3 to 5 years. Establishing a diagnosis of IPF can be challenging, with misdiagnoses and delays commonly reported, which cause delays in treatment that can slow the disease progression. The researchers at PHAR recently published a study in which they used Medicare data to examine patterns of diagnostic respiratory testing and pulmonologist visits that precede IPF diagnosis to investigate potential diagnostic delays. This paper was then highlighted in an editorial in the Annals of the American Thoracic Society, where the author “commended [them] for taking on this challenge of examining the real-world temporal relationship between test performance and IPF diagnosis” and commented, “Their findings raise important questions with practical implications for the clinical care of subjects with IPF.” The study and related publications can be found on the PHAR publications page.