Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Carrie Erwin, LCSW

Q: What is the NPI number for Carrie Erwin?

The National Provider Identifier (NPI) for Carrie Erwin is 1699899963, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in New Haven, CT · enumerated 2007.

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

National Provider Identifier

1699899963

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Registry record

Entity type Individual (Type 1)

Name Ms. Carrie Erwin

Credential LCSW

Sex Female

Practice address 20 York St, New Haven, CT, 06510

Phone (475) 224-7521

Enumeration date Mar 19, 2007

Last updated in NPPES Mar 24, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 004881 (CT) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
004068284	Medicaid	CT	-
004215308	Medicaid	CT	-

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

Where does Carrie Erwin practice?

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

What is the NPI number for Carrie Erwin?

The National Provider Identifier (NPI) for Carrie Erwin is 1699899963, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-24.