Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew S. Walzer, DPT

Orthopedic Physical Therapist in Laguna Niguel, CA · enumerated 2006 · practices at Deborah Weinstein Physical Therapy.

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

National Provider Identifier

1164472585

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew S. Walzer

Credential DPT

Sex Male

Practice address 31271 Niguel Rd Ste J, Laguna Niguel, CA, 92677

Phone (949) 443-5442

Fax (949) 443-5463

Enumeration date May 10, 2006

Last updated in NPPES Apr 14, 2026

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT21849 (CA) Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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

Where does Matthew Walzer practice?

The practice location on file with NPPES is in Laguna Niguel, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Matthew Walzer?

The National Provider Identifier (NPI) for Matthew Walzer is 1164472585, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-14.