Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Chojnacki

General Practice Dentistry in Hales Corners, WI · enumerated 2007.

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

National Provider Identifier

1073668661

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Chojnacki

Sex Male

Practice address 5301a S 108th St, Hales Corners, WI, 53130

Phone (414) 529-1850

Fax (414) 529-8786

Enumeration date Jan 24, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 4001864 (WI) Primary

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

Is NPI 1073668661 active?

Yes, as of the latest NPPES snapshot, NPI 1073668661 is active (record last updated 2007-07-08).

How do I verify Robert Chojnacki's NPI record?

Cross-check NPI 1073668661 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Alicia Suaverdez General Practice Dentistry · Hales Corners, WI NPI 1255498630 Steven Jagemann General Practice Dentistry · Hales Corners, WI NPI 1891953865

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.