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

Mr. Warren James Lancaster

Professional Counselor in New Canaan, CT · enumerated 2015.

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

National Provider Identifier

1922481597

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Warren James Lancaster

Sex Male

Practice address New Canaan, CT, 06840

Phone (203) 247-1045

Enumeration date Jul 1, 2015

Last updated in NPPES Jul 1, 2015

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 002702 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Warren Lancaster practice?

The practice location on file with NPPES is in New Canaan, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Warren Lancaster?

The National Provider Identifier (NPI) for Warren Lancaster is 1922481597, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-01.