Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jessica Nicole Zielinski, SLP

Speech-Language Pathologist in O Fallon, MO · enumerated 2013.

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

National Provider Identifier

1639501984

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Registry record

Entity type Individual (Type 1)

Name Jessica Nicole Zielinski

Credential SLP

Sex Female

Practice address 110 Virgil St, Special Services, O Fallon, MO, 63366

Phone (636) 240-2072

Fax (636) 240-2072

Enumeration date Aug 8, 2013

Last updated in NPPES Aug 8, 2013

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 2013027484 (MO) Primary

SLP · Speech-Language Pathologist: A licensed clinician treating speech, language, and swallowing disorders. About the SLP 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

What is the NPI number for Jessica Zielinski?

The National Provider Identifier (NPI) for Jessica Zielinski is 1639501984, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jessica Zielinski practice?

The practice location on file with NPPES is in O Fallon, MO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-08.