Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

WILLIAM KEITH HORNUNG M.D.
NPI 1093767618
Anesthesiology - Critical Care Medicine in Louisville, KY

Q: What is William Hornung's NPI number?

The NPI number for William Hornung is 1093767618. It was assigned to this individual provider in the NPPES registry on May 16, 2006.

Q: What is William Hornung's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Critical Care Medicine, with taxonomy code 207LC0200X.

Q: When was this NPI record last updated?

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

Active since May 16, 2006

200 ABRAHAM FLEXNER WAY, LOUISVILLE, KY 40202(502) 587-4404(502) 584-0144 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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

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About William Keith Hornung M.d. NPPES

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

WILLIAM KEITH HORNUNG M.D. (NPI 1093767618) is an individual critical care medicine provider in Louisville, Kentucky, licensed in Kentucky (25515) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1093767618

Entity TypeIndividualMale

Primary Taxonomy207LC0200X

Provider Legal NameWILLIAM KEITH HORNUNGCredential: M.D.

Location Address200 ABRAHAM FLEXNER WAYLouisville, KY 40202-1818

Mailing Address100 E Liberty St, Suite 303Louisville, KY 40202-1434 · (502) 584-0166 · Fax (502) 584-0144

Phone(502) 587-4404

Fax(502) 584-0144

Sole ProprietorNo

Enumeration DateMay 16, 2006

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1093767618 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LC0200X

License✔ Licensed in KY · 25515

Definition

An anesthesiologist, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedAnesthesiologyTaxonomy 207L00000X · License 25515 (KY)

200 ABRAHAM FLEXNER WAY, Louisville, KY 40202

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