Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. WILLIAM R IRVIN M. ED., LPCC, LMHC
NPI 1902881600
Counselor - Mental Health in Louisville, KY

Q: What is William Irvin's NPI number?

The NPI number for William Irvin is 1902881600. It was assigned to this individual provider in the NPPES registry on December 14, 2005.

Q: What is William Irvin's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for William Irvin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days 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 December 14, 2005

7321 NEW LAGRANGE RD, SUITE 203, LOUISVILLE, KY 40222(502) 426-5106(603) 457-2407 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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About Mr. William R Irvin M. Ed., Lpcc, Lmhc NPPES

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

MR. WILLIAM R IRVIN M. ED., LPCC, LMHC (NPI 1902881600) is an individual mental health provider in Louisville, Kentucky, licensed in Indiana (39000072A) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1902881600

Entity TypeIndividualMale

Primary Taxonomy101YM0800X

Provider Legal NameMR. WILLIAM R IRVINCredential: M. ED., LPCC, LMHC

Location Address7321 NEW LAGRANGE RD, SUITE 203Louisville, KY 40222-4800

Mailing AddressPo Box 22578Louisville, KY 40252-0578 · (502) 426-5106 · Fax (603) 457-2407

Phone(502) 426-5106

Fax(603) 457-2407

Sole ProprietorNo

Enumeration DateDecember 14, 2005

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1902881600 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in IN · 39000072A

Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License KY-0017 (KY)

7321 NEW LAGRANGE RD, Louisville, KY 40222

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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 Irvin's NPI number?

The NPI number for William Irvin is 1902881600. It was assigned to this individual provider in the NPPES registry on December 14, 2005.

Where is William Irvin located?

William Irvin practices at 7321 New Lagrange Rd Suite 203, Louisville, KY 40222. The listed phone number is (502) 426-5106.

What is William Irvin's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for William Irvin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days 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.