Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

U.S. Healthworks Medical Group of Pennsylvania, PC

Urgent Care Clinic/Center in Valencia, CA · enumerated 2006 · authorized official Joseph Mallas, President.

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

National Provider Identifier

1316927817

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Registry record

Entity type Organization (Type 2)

Legal business name U.S. Healthworks Medical Group of Pennsylvania, PC

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 Jul 21, 2022

Taxonomy & classification

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians Secondary

261QU0200X Urgent Care Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Joseph Mallas

Title President

Phone (661) 678-2600

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

What type of organization is U.S. Healthworks Medical Group of Pennsylvania, PC?

U.S. Healthworks Medical Group of Pennsylvania, PC is registered in NPPES as a Urgent Care Clinic/Center (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.