Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Wiilliam A. Patchak D.D.S. P.C.

Orthodontics and Dentofacial Orthopedics Dentistry in Jackson, MI · enumerated 2006 · authorized official William Patchak, President.

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

National Provider Identifier

1942384292

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Registry record

Entity type Organization (Type 2)

Legal business name Wiilliam A. Patchak D.D.S. P.C.

Practice address 306 W Washington Ave, Suite 105, Jackson, MI, 49201

Phone (517) 788-8340

Fax (517) 788-8343

Enumeration date Oct 24, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 2901011397 (MI) Primary

Authorized official

Name William Patchak

Title President

Phone (517) 788-8340

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Wiilliam A. Patchak D.D.S. P.C.?

Wiilliam A. Patchak D.D.S. P.C. is registered in NPPES as a Orthodontics and Dentofacial Orthopedics Dentistry (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.