Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walter Robertson Butler, M.D.

Specialist in Louisville, KY · enumerated 2006.

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

National Provider Identifier

1871603886

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Walter Robertson Butler

Credential M.D.

Sex Male

Practice address 3430 Newburg Rd, Suite 212, Louisville, KY, 40218

Phone (502) 454-8800

Fax (502) 736-0140

Enumeration date Aug 30, 2006

Last updated in NPPES Jan 19, 2015

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 28012 (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
7100102210	Medicaid	KY	-

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

How do I verify Walter Butler's NPI record?

Cross-check NPI 1871603886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871603886 active?

Yes, as of the latest NPPES snapshot, NPI 1871603886 is active (record last updated 2015-01-19).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-19.