Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William S Rubin, M.D.

Emergency Medicine Physician in Louisville, KY · enumerated 2006 · practices at Norton Healthcare.

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

National Provider Identifier

1184603474

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Registry record

Entity type Individual (Type 1)

Name William S Rubin

Credential M.D.

Sex Male

Practice address 1930 Bishop Ln, Suite 1600, Louisville, KY, 40218

Phone (502) 272-5034

Fax (502) 272-5117

Enumeration date Jan 13, 2006

Last updated in NPPES Jan 21, 2021

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 17709 (KY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
100349770	Other	KY	HEALTHY INDIANA PLAN- NORTON ICC
100349770	Medicaid	IN	-
64177090	Medicaid	KY	-
047292	Other	KY	SIHO- NORTON ICC
000000480188	Other	KY	ANTHEM NORTON
047292	Other	-	SIHO - NICC
1054506	Other	KY	PASSPORT ID#
P00362332	Other	KY	RAILROAD MEDICARE
100349770	Other	IN	ANTHEM INDIANA MEDICAID- NORTON ICC
000000057464	Other	KY	ANTHEM PROV ID#
1226924	Other	KY	CHA- NORTON ICC

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

What is the NPI number for William Rubin?

The National Provider Identifier (NPI) for William Rubin is 1184603474, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Rubin practice?

The practice location on file with NPPES is in Louisville, KY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-21.