Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Elizabeth Eileen Mazzilli, LMHC

Mental Health Counselor in Marshfield, MA · enumerated 2007.

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

National Provider Identifier

1396872768

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Registry record

Entity type Individual (Type 1)

Name Mrs. Elizabeth Eileen Mazzilli

Credential LMHC

Sex Female

Practice address 769 Plain St, Marshfield, MA, 02050

Phone (781) 834-7433

Fax (781) 834-7458

Enumeration date Feb 27, 2007

Last updated in NPPES Nov 16, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 6420 (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

What is the NPI number for Elizabeth Mazzilli?

The National Provider Identifier (NPI) for Elizabeth Mazzilli is 1396872768, a Type 1 (individual) record in the CMS NPPES registry.

Where does Elizabeth Mazzilli practice?

The practice location on file with NPPES is in Marshfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-16.