Dr. John Frey, DO

In their first decade of practice, Dr. John Frey represents the newer generation of pulmonary disease providers, DO, after earning their medical degree at Other in 2017. Dr. currently practices across 5 facilities, including Mayo Clinic Health System-franciscan Medical Center Inc in La Crosse, Wisconsin. Their National Provider Identifier (NPI) is 1538600754, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

CMS Medicare data shows Dr. John Frey as a lower-volume pulmonary disease provider, treating approximately 166 Medicare beneficiaries and delivering 330 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.