Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen Elizabeth Richardson, LCSW

Clinical Social Worker in Wallingford, CT · enumerated 2008.

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

National Provider Identifier

1831334127

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Registry record

Entity type Individual (Type 1)

Name Gretchen Elizabeth Richardson

Credential LCSW

Sex Female

Practice address 342 Grieb Rd, Wallingford, CT, 06492

Phone (203) 640-0178

Fax (203) 793-7152

Enumeration date Dec 16, 2008

Last updated in NPPES Jan 18, 2019

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 006456 (CT) Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 006456 (CT) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 006456 (CT) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 006456 (CT) Primary

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

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

Is NPI 1831334127 active?

Yes, as of the latest NPPES snapshot, NPI 1831334127 is active (record last updated 2019-01-18).

How do I verify Gretchen Richardson's NPI record?

Cross-check NPI 1831334127 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-18.