Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Roy Gilliland, PHD

Individual provider Clinical Neuropsychologist · NPI 1295700680

Dr. Roy Gilliland, PHD is a Clinical Psychologist in Orland Park, Illinois. Graduated from Sanford School of Medicine of University of South Dakota in 1989, 37 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
37
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

15040 Ravinia Ave Ste 44
Orland Park, IL 60462
Phone: (708) 857-1221
Fax: (708) 614-7001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X (IL)
Psychologist Taxonomy 103T00000X (IL)

Record details

NPI number1295700680
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedFebruary 21, 2006
Last updated in NPPESSeptember 11, 2025
Mailing addressPo Box 1111, Tinley Park, IL 60477

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Orland Park