Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

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

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

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

National Provider Identifier

1013987999

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Registry record

Entity type Organization (Type 2)

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

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

Phone (661) 678-2600

Fax (661) 678-2700

Enumeration date Jan 24, 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 Executive 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

Who is the authorized official for U.S. Healthworks Medical Group of Texas, Inc.?

NPPES lists Joseph Mallas (Executive Vice President) as the authorized official for this organization.

What is the NPI number for U.S. Healthworks Medical Group of Texas, Inc.?

The NPI for U.S. Healthworks Medical Group of Texas, Inc. is 1013987999, 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 2015-02-09.