J. Preston Harley, PHD

With 20 years of practice, J. Preston Harley is an established clinical psychologist provider, PHD, after earning their medical degree at Other in 1971. J. currently practices at Dpt Holdings Llc in Naperville, Illinois. Their National Provider Identifier (NPI) is 1578598462, 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 J. Preston Harley as a lower-volume clinical psychologist provider, treating approximately 17 Medicare beneficiaries and delivering 146 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.