Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Keith Howard Mantel, LICSW

Clinical Social Worker in South Boston, MA · enumerated 2006.

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

National Provider Identifier

1356351118

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Registry record

Entity type Individual (Type 1)

Name Mr. Keith Howard Mantel

Credential LICSW

Sex Male

Practice address 409 W Broadway, South Boston, MA, 02127

Phone (617) 269-7500

Enumeration date Aug 8, 2006

Last updated in NPPES Nov 6, 2018

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 117738 (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

How do I verify Keith Mantel's NPI record?

Cross-check NPI 1356351118 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1356351118 active?

Yes, as of the latest NPPES snapshot, NPI 1356351118 is active (record last updated 2018-11-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-06.