Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Denise S Backus, MSW LICSW

Clinical Social Worker in Mashpee, MA · enumerated 2006.

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

National Provider Identifier

1558453100

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Registry record

Entity type Individual (Type 1)

Name Mrs. Denise S Backus

Credential MSW LICSW

Sex Female

Practice address 2a Oak St, Ste 201, Mashpee, MA, 02649

Phone (508) 539-0221

Enumeration date Sep 29, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1021504 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Denise Backus's NPI record?

Cross-check NPI 1558453100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558453100 active?

Yes, as of the latest NPPES snapshot, NPI 1558453100 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.