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

Lucy A Grosvenor, LICSW

Clinical Social Worker in North Chelmsford, MA · enumerated 2005.

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

National Provider Identifier

1083697049

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Registry record

Entity type Individual (Type 1)

Name Lucy A Grosvenor

Credential LICSW

Sex Female

Practice address North Chelmsford, MA, 01863

Phone (978) 256-6579

Fax (978) 256-1943

Enumeration date Nov 23, 2005

Last updated in NPPES May 18, 2015

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 103090 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
1409328Y0MA01	Other	NH	BCBSNH
162104000	Other	MA	MAGELLAN
103090	Other	MA	TUFTS
043476807-02	Other	MA	PACIFICARE
103090	Other	MA	SECURE HORIZON
009143	Other	MA	VALUE OPTIONS
800009597	Other	MA	RAILROAD MEDICARE
0022320	Other	MA	NHP
1858335	Medicaid	MA	-
333110	Other	MA	MHN
P02227	Other	MA	BCBSMA
971702	Other	MA	NETWORK HEALTH

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

Is NPI 1083697049 active?

Yes, as of the latest NPPES snapshot, NPI 1083697049 is active (record last updated 2015-05-18).

How do I verify Lucy Grosvenor's NPI record?

Cross-check NPI 1083697049 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Susan Charkoudian Clinical Social Worker · N Chelmsford, MA NPI 1740276526 Ronald Winfield Psychiatry Physician · North Chelmsford, MA NPI 1679554927 Robert Dimeo Clinical Social Worker · North Chelmsford, MA NPI 1588645824 Grace Trivers Psychiatric/Mental Health Clinical Nurse Specialist · North Chelmsford, MA NPI 1306828512 Paul Menitoff Psychiatry Physician · N Chelmsford, MA NPI 1578545562 Usha Tripathi Psychiatry Physician · North Chelmsford, MA NPI 1205818010 Richard Folly Clinical Social Worker · North Chelmsford, MA NPI 1518940444 Martha Huff Adult Psychiatric/Mental Health Registered Nurse · North Chelmsford, MA NPI 1730153263

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-18.