Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Sean Cass Terry, PSY.D.

Clinical Psychologist in Mount Prospect, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1487665311

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Sean Cass Terry

Credential PSY.D.

Sex Male

Practice address Mount Prospect, IL, 60056

Phone (847) 867-7924

Fax (847) 299-4952

Enumeration date Aug 9, 2006

Last updated in NPPES Dec 12, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 001160 (IA) Secondary

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers · License 071007347 (IL) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 001160 (IA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071007347 (IL) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Sean Terry?

Sean Terry is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Valerie Beavers Clinical Social Worker · Mount Prospect, IL NPI 1861455297 David Swearingen Professional Counselor · Mount Prospect, IL NPI 1619405529 Marina Milutinovic Counselor · Mount Prospect, IL NPI 1386139129

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-12.