Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Oral & Maxillofacial Surgery Consultants of Wisconsin, S.C.

Oral and Maxillofacial Surgery (Dentist) in Greenfield, WI · enumerated 2006 · authorized official Ronald Nellen, President.

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

National Provider Identifier

1285649921

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Registry record

Entity type Organization (Type 2)

Legal business name Oral & Maxillofacial Surgery Consultants of Wisconsin, S.C.

Practice address 4811 S 76th St, Suite 304, Greenfield, WI, 53220

Phone (414) 281-3344

Fax (414) 281-1080

Enumeration date Jul 30, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 2699 (WI) Primary

Authorized official

Name Ronald Nellen

Title President

Phone (414) 281-3344

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

Who is the authorized official for Oral & Maxillofacial Surgery Consultants of Wisconsin, S.C.?

NPPES lists Ronald Nellen (President) as the authorized official for this organization.

What is the NPI number for Oral & Maxillofacial Surgery Consultants of Wisconsin, S.C.?

The NPI for Oral & Maxillofacial Surgery Consultants of Wisconsin, S.C. is 1285649921, a Type 2 (organization) record in the CMS NPPES registry.

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