Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tammy Meredith Cook

Social Worker in Groton, MA · enumerated 2014.

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

National Provider Identifier

1902211618

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Registry record

Entity type Individual (Type 1)

Name Tammy Meredith Cook

Sex Female

Practice address 19 Lowell Rd, 102, Groton, MA, 01450

Phone (903) 975-5219

Enumeration date Jun 23, 2014

Last updated in NPPES Jun 23, 2014

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Tammy Meredith Cook?

The National Provider Identifier (NPI) for Tammy Meredith Cook is 1902211618, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tammy Meredith Cook practice?

The practice location on file with NPPES is in Groton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-23.