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

Ms. Susan S. Langan

Counselor in Winnetka, IL · enumerated 2011.

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

National Provider Identifier

1851675250

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Registry record

Entity type Individual (Type 1)

Name Ms. Susan S. Langan

Sex Female

Practice address Winnetka, IL, 60093

Phone (847) 441-5798

Fax (847) 441-5894

Enumeration date Oct 4, 2011

Last updated in NPPES Oct 4, 2011

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

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers 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

How do I verify Susan Langan's NPI record?

Cross-check NPI 1851675250 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851675250 active?

Yes, as of the latest NPPES snapshot, NPI 1851675250 is active (record last updated 2011-10-04).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-04.