NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Theresa Marie Chawner, LCSW

Clinical Social Worker in Southington, CT · enumerated 2008 · practices at Trellis Counseling and Wellness LLC.

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

National Provider Identifier

1548446925

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Registry record

Entity type Individual (Type 1)
Name Mrs. Theresa Marie Chawner
Credential LCSW
Sex Female
Practice address Southington, CT, 06489
Enumeration date Jan 15, 2008
Last updated in NPPES Jun 2, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 009066 (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
008084862 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.

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Frequently asked questions

Is NPI 1548446925 active?
Yes, as of the latest NPPES snapshot, NPI 1548446925 is active (record last updated 2020-06-02).
How do I verify Theresa Chawner's NPI record?
Cross-check NPI 1548446925 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-02.