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

Marissa Messinger

Social Worker in South Sioux City, NE · enumerated 2017.

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

National Provider Identifier

1972019438

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Registry record

Entity type Individual (Type 1)

Name Marissa Messinger

Sex Female

Practice address South Sioux City, NE, 68776

Phone (402) 494-3337

Fax (402) 494-3356

Enumeration date Dec 20, 2017

Last updated in NPPES Dec 20, 2017

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 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

What is the NPI number for Marissa Messinger?

The National Provider Identifier (NPI) for Marissa Messinger is 1972019438, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marissa Messinger practice?

The practice location on file with NPPES is in South Sioux City, NE. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-20.