NPI Portal NPI Lookup & Verification

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

Cheryl Lyn Grau

Clinical Social Worker in Allston, MA · enumerated 2010.

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

National Provider Identifier

1346550142

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Registry record

Entity type Individual (Type 1)
Name Cheryl Lyn Grau
Sex Female
Practice address Allston, MA, 02134
Enumeration date Oct 14, 2010
Last updated in NPPES Oct 14, 2010

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 106217 (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 Cheryl Grau's NPI record?
Cross-check NPI 1346550142 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1346550142 active?
Yes, as of the latest NPPES snapshot, NPI 1346550142 is active (record last updated 2010-10-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-14.