Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nancy Portillo, D.C.

Chiropractor in St Charles, IL · enumerated 2012.

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

National Provider Identifier

1942573597

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Registry record

Entity type Individual (Type 1)

Name Dr. Nancy Portillo

Credential D.C.

Sex Female

Practice address 3755 E Main St, Suite 158, St Charles, IL, 60174

Phone (630) 377-3344

Enumeration date Feb 13, 2012

Last updated in NPPES Feb 13, 2012

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 038012132 (IL) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

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Frequently asked questions

Where does Nancy Portillo practice?

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

What is the NPI number for Nancy Portillo?

The National Provider Identifier (NPI) for Nancy Portillo is 1942573597, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-13.