Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Fran B. Fassler, LICSW

Clinical Social Worker in Greenfield, MA · enumerated 2006.

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

National Provider Identifier

1629046677

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Registry record

Entity type Individual (Type 1)

Name Ms. Fran B. Fassler

Credential LICSW

Sex Female

Practice address 329 Conway St, Valley Medical Group, P.C.-Greenfield Hlth Ctr, Greenfield, MA, 01301

Phone (413) 774-6301

Fax (866) 644-0871

Enumeration date Mar 8, 2006

Last updated in NPPES Dec 6, 2023

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 105306 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
407085	Other	MA	TUFTS HEALTH PLAN
1294706	Other	-	FALLON COMMUNITY HEALTH PLAN
26542	Other	MA	HEALTH NEW ENGLAND
7555186	Other	MA	AETNA BH
2062145	Other	MA	CIGNA BEHAVIORAL HEALTH
P03632	Other	MA	BLUE CROSS BLUE SHIELD
800011285	Other	MA	RAILROAD MEDICARE
593372000	Other	MA	MAGELLAN BEHAVIORAL HEALT

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Fran Fassler?

Fran Fassler is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-06.