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

Nancy D Sieland, LICSW, M.ED

Clinical Social Worker in Marblehead, MA · enumerated 2007.

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

National Provider Identifier

1932251907

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Registry record

Entity type Individual (Type 1)

Name Nancy D Sieland

Credential LICSW, M.ED

Sex Female

Practice address Marblehead, MA, 01945

Phone (978) 810-5375

Enumeration date Jan 18, 2007

Last updated in NPPES May 2, 2012

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 111843 (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

Is NPI 1932251907 active?

Yes, as of the latest NPPES snapshot, NPI 1932251907 is active (record last updated 2012-05-02).

How do I verify Nancy Sieland's NPI record?

Cross-check NPI 1932251907 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-02.