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

Mrs. Karen T Lang, LICSW

Clinical Social Worker in Andover, MA · enumerated 2006.

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

National Provider Identifier

1922071075

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Registry record

Entity type Individual (Type 1)
Name Mrs. Karen T Lang
Credential LICSW
Sex Female
Practice address Andover, MA, 01810
Phone (978) 470-0774
Fax (978) 470-3767
Enumeration date Feb 9, 2006
Last updated in NPPES Apr 28, 2020

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 100724 (MA) 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

Where does Karen Lang practice?
The practice location on file with NPPES is in Andover, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Lang?
The National Provider Identifier (NPI) for Karen Lang is 1922071075, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-28.