Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Gary John Burkhardt, O.D.

Optometrist in Chilton, WI · enumerated 2005.

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

National Provider Identifier

1861479412

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Registry record

Entity type Individual (Type 1)

Name Dr. Gary John Burkhardt

Credential O.D.

Sex Male

Practice address Chilton, WI, 53014

Phone (920) 849-4291

Fax (920) 849-4292

Enumeration date Dec 26, 2005

Last updated in NPPES Jan 28, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1989035 (WI) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
38588600	Medicaid	WI	-

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 Gary Burkhardt's NPI record?

Cross-check NPI 1861479412 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861479412 active?

Yes, as of the latest NPPES snapshot, NPI 1861479412 is active (record last updated 2013-01-28).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-28.