Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Sabo, LMSW

Social Worker in Dayville, CT · enumerated 2016.

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

National Provider Identifier

1558813493

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Registry record

Entity type Individual (Type 1)

Name Marissa Sabo

Credential LMSW

Sex Female

Practice address 1007 N Main St, Dayville, CT, 06241

Phone (860) 774-2020

Fax (860) 774-0826

Enumeration date Oct 26, 2016

Last updated in NPPES Mar 3, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 10799 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1558813493 active?

Yes, as of the latest NPPES snapshot, NPI 1558813493 is active (record last updated 2025-03-03).

How do I verify Marissa Sabo's NPI record?

Cross-check NPI 1558813493 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 2025-03-03.