Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Constance Alta Langer, OTR/L

Occupational Therapist in Andover, MA · enumerated 2010.

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

National Provider Identifier

1649593963

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Registry record

Entity type Individual (Type 1)

Name Mrs. Constance Alta Langer

Credential OTR/L

Sex Female

Practice address 200 Brickstone Sq Fl 3, Andover, MA, 01810

Phone (800) 728-8808

Enumeration date Mar 2, 2010

Last updated in NPPES Mar 2, 2010

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 3325 (NC) 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 Constance Langer 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 Constance Langer?

The National Provider Identifier (NPI) for Constance Langer is 1649593963, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-02.