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

Mr. Eugene Rivera, MSW

Clinical Social Worker in Madison, CT · enumerated 2012 · practices at Clinical Social Work Services LLC.

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

National Provider Identifier

1609129790

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Registry record

Entity type Individual (Type 1)

Name Mr. Eugene Rivera

Credential MSW

Sex Male

Practice address Madison, CT, 06443

Phone (203) 245-3467

Enumeration date Oct 26, 2012

Last updated in NPPES Oct 26, 2012

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 003747 (CT) 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.

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Frequently asked questions

How do I verify Eugene Rivera's NPI record?

Cross-check NPI 1609129790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609129790 active?

Yes — as of the latest NPPES snapshot, NPI 1609129790 is active (record last updated 2012-10-26).

Other providers at this practice address

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Clinical Social Work Services LLC Clinical Social Worker · Madison, CT NPI 1366783045

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-26.