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

Ms. Judith A. Marquardt, M.S. ED., ATR-BC

Professional Counselor in Mchenry, IL · enumerated 2006.

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

National Provider Identifier

1366520876

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Registry record

Entity type Individual (Type 1)

Name Ms. Judith A. Marquardt

Credential M.S. ED., ATR-BC

Sex Female

Practice address Mchenry, IL, 60050

Phone (815) 344-0395

Fax (815) 344-0395

Enumeration date Nov 1, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 180 -001780 (IL) 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 Judith Marquardt?

The National Provider Identifier (NPI) for Judith Marquardt is 1366520876, a Type 1 (individual) record in the CMS NPPES registry.

Where does Judith Marquardt practice?

The practice location on file with NPPES is in Mchenry, IL. 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 2007-07-08.