Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew Alexander Allen, D.P.T.

Physical Therapist in Fallbrook, CA · enumerated 2011.

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

National Provider Identifier

1821384462

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Registry record

Entity type Individual (Type 1)

Name Matthew Alexander Allen

Credential D.P.T.

Sex Male

Practice address 521 E Elder St, Ste. 106, Fallbrook, CA, 92028

Phone (760) 723-8337

Fax (760) 723-5476

Enumeration date Jun 22, 2011

Last updated in NPPES Sep 30, 2014

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT37899 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
0281334	Other	WA	DEPT. OF LABOR AND INDUSTRIES

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 is the NPI number for Matthew Allen?

The National Provider Identifier (NPI) for Matthew Allen is 1821384462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Matthew Allen practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-30.