Trends in testosterone prescription during the release of society guidelines

The American Urological Association and Endocrine Society published guidelines for the management of testosterone deficiency in 2018. Testosterone prescription patterns have varied widely recently, owing to increased public interest and emerging data on the safety of testosterone therapy. The effect of guideline publication on testosterone prescribing is unknown. Thus, we aimed to assess testosterone prescription trends using Medicare prescriber data. Specialties with over 100 testosterone prescribers from 2016-2019 were analyzed. Nine specialties were included (in order of descending prescription frequency): family practice, internal medicine, urology, endocrinology, nurse practitioners, physician assistants, general practice, infectious disease, and emergency medicine. The number of prescribers grew by a mean of 8.8% annually. There was a significant increase in average claims per provider from 2016 to 2019 (26.4 to 28.7, p < 0.0001), with the steepest increase occurring between 2017 and 2018 when the guidelines were released (27.2 to 28.1, p = 0.015). The largest increase in claims per provider was among urologists. Advanced practice providers comprised 7.5% of Medicare testosterone claims in 2016 and 11.6% in 2019. While no causation can be established, these results suggest that professional society guidelines are associated with increasing numbers of testosterone claims per provider, especially among urologists. The changing demographics of prescribers justifies targeted education and further research.