Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Graham-Massey Analytical Labs, Inc.

Clinical Medical Laboratory in Shelton, CT · enumerated 2007 · authorized official Sylvia Freeman, Mgr of Credentialing/Enrollment.

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

National Provider Identifier

1932239431

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Registry record

Entity type Organization (Type 2)

Legal business name Graham-Massey Analytical Labs, Inc.

Practice address 60 Todd Rd, Shelton, CT, 06484

Phone (203) 926-1100

Fax (203) 944-9189

Enumeration date Mar 6, 2007

Last updated in NPPES Jun 8, 2016

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License CL-0484 (CT) Primary

Authorized official

Name Sylvia Freeman

Title Mgr of Credentialing/Enrollment

Phone (508) 304-7602

Other identifiers

Identifier	Type	State	Issuer
07D0686807	Other	CT	CLIA ID NUMBER

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-06-08. Verify at npiregistry.cms.hhs.gov.

Where is Graham-Massey Analytical Labs, Inc. located?

The practice location on file with NPPES is in Shelton, CT.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-08.