MR. WILLIAM JOSEPH WALDNER MS LCPC CADC
NPI 1417084781
Counselor - Addiction (Substance Use Disorder) in Downers Grove, IL

Q: What is William Waldner's NPI number?

The NPI number for William Waldner is 1417084781. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Q: What is William Waldner's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for William Waldner was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 27, 2007

601 65TH STREET, DOWNERS GROVE, IL 60516(630) 852-8873(630) 852-8873 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Mr. William Joseph Waldner Ms Lcpc Cadc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. WILLIAM JOSEPH WALDNER MS LCPC CADC (NPI 1417084781) is an individual addiction (substance use disorder) provider in Downers Grove, Illinois, licensed in Illinois (1561) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1417084781

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameMR. WILLIAM JOSEPH WALDNERCredential: MS LCPC CADC

Location Address601 65TH STREETDowners Grove, IL 60516-3021

Mailing Address601 65th StreetDowners Grove, IL 60516-3021 · (630) 852-8873 · Fax (630) 852-8873

Phone(630) 852-8873

Fax(630) 852-8873

Sole ProprietorNo

Enumeration DateFebruary 27, 2007

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1417084781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in IL · 1561

Also ListedCounselor · ProfessionalTaxonomy 101YP2500X

601 65TH STREET, Downers Grove, IL 60516

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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. MARLENE ANNE WALDNER LCPC MS

Counselor (Addiction (Substance Use Disorder))

601 65TH STREET
DOWNERS GROVE, IL 60516

Dupage County (630) 852-8873

WALDNER AND ASSOCIATES

Counselor

601 65TH STREET
DOWNERS GROVE, IL 60516

Dupage County (630) 852-8873

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Waldner's NPI number?

The NPI number for William Waldner is 1417084781. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is William Waldner located?

William Waldner practices at 601 65th Street, Downers Grove, IL 60516. The listed phone number is (630) 852-8873.

What is William Waldner's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for William Waldner was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.