Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

J.L. Mackman DDS

Q: What is the NPI number for J.L. Mackman DDS?

The NPI for J.L. Mackman DDS is 1457472441, a Type 2 (organization) record in the CMS NPPES registry.

General Practice Dentistry in Wauwatosa, WI · enumerated 2007 · authorized official Jay Mackman, Dentist.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1457472441

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Registry record

Entity type Organization (Type 2)

Legal business name J.L. Mackman DDS

Practice address 2626 N Wauwatosa Ave, Wauwatosa, WI, 53213

Phone (414) 476-9400

Fax (414) 962-9599

Enumeration date Apr 3, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 2793 (WI) Primary

Authorized official

Name Jay Mackman

Title Dentist

Phone (414) 476-9400

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

Who is the authorized official for J.L. Mackman DDS?

NPPES lists Jay Mackman (Dentist) as the authorized official for this organization.

What is the NPI number for J.L. Mackman DDS?

The NPI for J.L. Mackman DDS is 1457472441, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.