Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marsha Alter, MSW, LICSW

Q: What is the NPI number for Marsha Alter?

The National Provider Identifier (NPI) for Marsha Alter is 1578746111, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Beverly, MA · enumerated 2007.

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

National Provider Identifier

1578746111

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Registry record

Entity type Individual (Type 1)

Name Marsha Alter

Credential MSW, LICSW

Sex Female

Practice address 111 Dodge St, Beverly, MA, 01915

Phone (978) 921-1182

Enumeration date Dec 5, 2007

Last updated in NPPES Dec 5, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 100138 (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

Where does Marsha Alter practice?

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

What is the NPI number for Marsha Alter?

The National Provider Identifier (NPI) for Marsha Alter is 1578746111, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-05.