Roy Gilliland, PHD

Primary specialty

Clinical NeuropsychologistTaxonomy code 103G00000X

Practice address

15040 Ravinia Ave Suite 44
Orland Park, IL 60462

Phone

(708) 857-1221

Fax

(708) 614-7001

NPI assigned

Feb 21, 2006

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Psychologist

Education

Sanford School of Medicine of University of South Dakota, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Doreen a. Zaborac & Associates, Inc.

  • Counselor
  • Tinley Park, IL
  • NPI 1649487521
  NPD
• Dr. Amy Suszko Brown, LLC

  • Adult Mental Health Clinic/Center
  • Frankfort, IL
  • NPI 1386141158
  NPD (past)
• Kirk Clinic

  • Psychiatry Physician
  • Orland Park, IL
  • NPI 1023188422
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1140480000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1295700680",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1111",
            "city": "TINLEY PARK",
            "state": "IL",
            "postal_code": "60477",
            "telephone_number": "708-857-1221",
            "fax_number": "708-614-7001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15040 RAVINIA AVE SUITE 44",
            "city": "ORLAND PARK",
            "state": "IL",
            "postal_code": "60462",
            "telephone_number": "708-857-1221",
            "fax_number": "708-614-7001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GILLILAND",
        "first_name": "ROY",
        "name_prefix": "Dr.",
        "credential": "PHD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-02-21",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103G00000X",
            "taxonomy_group": "",
            "desc": "Clinical Neuropsychologist",
            "state": "IL",
            "license": null,
            "primary": true
        },
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "IL",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tammi Gibbs, PTA
• Donna Gibson, COTA
• Mariana Gigea, MD
• Timothy R Gilbert
• David Russell Giles
• Faith Gillis
• Suzanne Marie Gillund, PHYSICAL THERAPIST
• Ralph William Ginn, DDS
• John Leo Giovinco, M.D.
• Gist Entities, LLC

• Clinical Neuropsychologist in Orland Park, IL
• Providers in Orland Park, IL by specialty
• Clinical Neuropsychologist in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.