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

Dr. Polly Walker Grant

Clinical Social Worker in Revere, MA · enumerated 2007.

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

National Provider Identifier

1538286919

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Polly Walker Grant

Sex Female

Practice address Revere, MA, 02151

Phone (781) 485-6111

Fax (781) 485-6119

Enumeration date Mar 23, 2007

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 100125 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
100125	Other	MA	LICSW
004676	Other	SC	LISW-CP

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

Is NPI 1538286919 active?

Yes, as of the latest NPPES snapshot, NPI 1538286919 is active (record last updated 2007-07-08).

How do I verify Polly Grant's NPI record?

Cross-check NPI 1538286919 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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