Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Natalie Pacini, LCSW

Clinical Social Worker in Saint Charles, IL · enumerated 2017 · practices at Associates for Innovative Change.

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

National Provider Identifier

1821519471

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Registry record

Entity type Individual (Type 1)

Name Natalie Pacini

Credential LCSW

Sex Female

Practice address 210 S 5th St Ste 103, Saint Charles, IL, 60174

Phone (224) 678-9033

Enumeration date Jul 5, 2017

Last updated in NPPES Jul 5, 2017

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149.019229 (IL) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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

Where does Natalie Pacini practice?

The practice location on file with NPPES is in Saint Charles, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Natalie Pacini?

The National Provider Identifier (NPI) for Natalie Pacini is 1821519471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Associates for Innovative Change Clinical Psychologist · St Charles, IL NPI 1205358579

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-05.