Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Alison Elizabeth Barker, PT

Physical Therapist in Los Altos, CA · enumerated 2006.

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

National Provider Identifier

1740297951

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Registry record

Entity type Individual (Type 1)

Name Mrs. Alison Elizabeth Barker

Credential PT

Sex Female

Practice address 794 Altos Oaks Dr, Los Altos, CA, 94024

Phone (650) 947-9646

Fax (650) 947-9566

Enumeration date Aug 1, 2006

Last updated in NPPES Nov 6, 2007

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 14364 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
CG5266	Other	CA	RAILROAD MEDICARE
ZZZ55575Z	Other	CA	BLUE SHIELD

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

Where does Alison Barker practice?

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

What is the NPI number for Alison Barker?

The National Provider Identifier (NPI) for Alison Barker is 1740297951, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-06.