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

Mr. Charles William Tirrell Jr., LICSW

Clinical Social Worker in Marblehead, MA · enumerated 2006.

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

National Provider Identifier

1851457501

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Registry record

Entity type Individual (Type 1)

Name Mr. Charles William Tirrell Jr.

Credential LICSW

Sex Male

Practice address Marblehead, MA, 01945

Phone (781) 631-3014

Enumeration date Dec 28, 2006

Last updated in NPPES Jul 8, 2007

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 110072 (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

Where does Charles Tirrell practice?

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

What is the NPI number for Charles Tirrell?

The National Provider Identifier (NPI) for Charles Tirrell is 1851457501, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Julie Martinez Psychiatry Physician · Marblehead, MA NPI 1376761023

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