NPI Portal NPI Lookup & Verification

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

Dr. Melinda Marqui, DC, RN, CDCES

Diabetes Educator Registered Nurse in St Charles, IL · enumerated 2019.

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

National Provider Identifier

1518517184

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Registry record

Entity type Individual (Type 1)
Name Dr. Melinda Marqui
Credential DC, RN, CDCES
Sex Female
Practice address St Charles, IL, 60175
Enumeration date Sep 16, 2019
Last updated in NPPES Mar 6, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 041410525 (IL) Secondary
111N00000X Chiropractor Chiropractic Providers · License 34525 (CA) Secondary
163WD0400X Diabetes Educator Registered Nurse Nursing Service Providers · License 041410525 (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

How do I verify Melinda Marqui's NPI record?
Cross-check NPI 1518517184 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1518517184 active?
Yes, as of the latest NPPES snapshot, NPI 1518517184 is active (record last updated 2026-03-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-06.