Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mark Contreras, PT

Orthopedic Physical Therapist in Covina, CA · enumerated 2021 · practices at Lawrence W Carter A Physical Therapy Corporation.

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

National Provider Identifier

1790366409

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Registry record

Entity type Individual (Type 1)

Name Mark Contreras

Credential PT

Sex Male

Practice address Covina, CA, 91723

Phone (626) 967-7833

Fax (626) 859-2633

Enumeration date Apr 15, 2021

Last updated in NPPES Nov 12, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 300078 (CA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

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.

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Frequently asked questions

Is NPI 1790366409 active?

Yes, as of the latest NPPES snapshot, NPI 1790366409 is active (record last updated 2021-11-12).

How do I verify Mark Contreras's NPI record?

Cross-check NPI 1790366409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-12.