NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

U.S. Healthworks Medical Group of Wisconsin, Sc

Preventive Medicine/Occupational Environmental Medicine Physician in Franklin, WI · enumerated 2016 · authorized official Joseph Mallas, Secretary.

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

National Provider Identifier

1740730381

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name U.S. Healthworks Medical Group of Wisconsin, Sc
Parent organization U.S. Healthworks Medical Group of Wisconsin, Sc
Practice address 5040 W Ashland Way, Franklin, WI, 53132
Fax (414) 858-0111
Enumeration date Oct 6, 2016
Last updated in NPPES Oct 6, 2016

Taxonomy & classification

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians Primary
261QU0200X Urgent Care Clinic/Center Ambulatory Health Care Facilities Secondary

Authorized official

Name Joseph Mallas
Title Secretary

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 U.S. Healthworks Medical Group of Wisconsin, Sc?
NPPES lists Joseph Mallas (Secretary) as the authorized official for this organization.
What is the NPI number for U.S. Healthworks Medical Group of Wisconsin, Sc?
The NPI for U.S. Healthworks Medical Group of Wisconsin, Sc is 1740730381, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-06.