Dr. J. Preston Harley, PHD
Dr. J. Preston Harley, PHD is a Clinical Psychologist in Naperville, Illinois. Qualified in 1971, 55 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Illinois.
- Years since qualifying
- 55
- Licensed in
- IL
- In the registry since
- 2006
- Specialties on file
- 3
What do these letters mean?
- PHD — Doctor of Philosophy
- A research doctorate. In healthcare it usually sits alongside a clinical licence.
Practice location Address checks out
3155 Book Rd Ste 103Naperville, IL 60564-9545
Phone: (630) 293-4321
Fax: (630) 293-4297
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Clinical Neuropsychologist (primary) | Taxonomy 103G00000X · Licence 071-004240 (IL) |
|---|---|
| Clinical Psychologist | Taxonomy 103TC0700X · Licence 071-004240 (IL) |
| Rehabilitation Psychologist | Taxonomy 103TR0400X · Licence 071-004240 (IL) |
Record details
| NPI number | 1578598462 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | PHD |
| Sole proprietor | Yes |
| NPI enumerated | July 11, 2006 |
| Last updated in NPPES | September 11, 2025 |
Medicare enrollment
| Medicare specialty | CLINICAL PSYCHOLOGIST |
|---|---|
| Medical school | OTHER |
| Graduated | 1971 (55 years in practice) |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Telehealth | Offers telehealth services |
Other providers in Naperville
-
George Karol Bialkowski, PSYD
2132 Deep Water Ln Ste 212B, Naperville, IL 60564-8498 · (630) 473-3971
-
Neurobehavioral Group PC
1755 Park St #200, Naperville, IL 60563-4861 · (630) 449-4270
-
Dr. Patrice Paul, PHD
500 E Ogden Ave Kuhn Counseling Ctr, Naperville, IL 60563-3213 · (630) 232-1090