Dr. J. Preston Harley PHD
About this NPIWhat this record shows.
NPI 1578598462 is registered to Dr. J. Preston Harley PHD, a Clinical Neuropsychologist practising at 3155 Book Rd, Suite 103 in Naperville, Illinois. Clinical Neuropsychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. J. Preston Harley PHD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20040419000363Clinical PsychologistIL
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. J. Preston Harley PHD accepts. To confirm in-network status with your specific health plan, contact Dr. J. Preston Harley PHD directly at (630) 293-4321.
Frequently asked
Yes. NPI 1578598462 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical Neuropsychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (630) 293-4321.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. J. Preston Harley PHD is a Type-1 individual NPI.