NPI Portal NPI Lookup & Verification

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

Madeleine Haas, LICSW

Clinical Social Worker in Westborough, MA · enumerated 2006.

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

National Provider Identifier

1760548531

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Madeleine Haas
Credential LICSW
Sex Female
Practice address Westborough, MA, 01581
Phone (508) 654-9400
Enumeration date Dec 28, 2006
Last updated in NPPES Jan 11, 2011

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 115191 (MA) Primary

Other identifiers

Identifier Type State Issuer
001212201 Other MA MEDICARE PTAN

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 Madeleine Haas practice?
The practice location on file with NPPES is in Westborough, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Madeleine Haas?
The National Provider Identifier (NPI) for Madeleine Haas is 1760548531, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-11.