NPI Portal NPI Lookup & Verification

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

Mr. Gregory Lloyd Washington, CP

Prosthetist in Hines, IL · enumerated 2008.

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

National Provider Identifier

1497907810

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Registry record

Entity type Individual (Type 1)
Name Mr. Gregory Lloyd Washington
Credential CP
Sex Male
Practice address Hines, IL, 60141
Phone (708) 202-8387
Fax (708) 202-2006
Enumeration date Oct 16, 2008
Last updated in NPPES Oct 23, 2008

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

Taxonomy & licenses

224P00000X Prosthetist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 211000138 (IL) Primary

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.

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Frequently asked questions

What is the NPI number for Gregory Washington?
The National Provider Identifier (NPI) for Gregory Washington is 1497907810, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Washington practice?
The practice location on file with NPPES is in Hines, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-23.