Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Virginia Crummey, LMHC

Mental Health Counselor in Norwell, MA · enumerated 2007 · practices at Oral Surgery South PC.

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

National Provider Identifier

1003945718

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Registry record

Entity type Individual (Type 1)

Name Margaret Virginia Crummey

Credential LMHC

Sex Female

Practice address 80 Washington St, D-28, Norwell, MA, 02061

Phone (617) 645-5846

Fax (781) 749-1444

Enumeration date Mar 6, 2007

Last updated in NPPES Nov 2, 2011

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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 Margaret Crummey's NPI record?

Cross-check NPI 1003945718 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1003945718 active?

Yes, as of the latest NPPES snapshot, NPI 1003945718 is active (record last updated 2011-11-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-02.