Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

U.S. Healthworks Medical Group of Maine, Inc.

Preventive Medicine/Occupational Environmental Medicine Physician in Valencia, CA · enumerated 2006 · authorized official Joseph Mallas, Senior Vice President.

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

National Provider Identifier

1194705764

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Registry record

Entity type Organization (Type 2)

Legal business name U.S. Healthworks Medical Group of Maine, Inc.

Practice address 25124 Springfield Court, Suite 200, Valencia, CA, 91355

Phone (661) 678-2600

Fax (661) 678-2700

Enumeration date Jan 19, 2006

Last updated in NPPES Feb 9, 2015

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 Senior Vice President

Phone (661) 678-2626

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

Where is U.S. Healthworks Medical Group of Maine, Inc. located?

The practice location on file with NPPES is in Valencia, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-02-09. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-09.