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

Jeffrey Mcdowell Mailes

Marriage & Family Therapist in Santa Barbara, CA · enumerated 2020.

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

National Provider Identifier

1538777867

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Mcdowell Mailes

Sex Male

Practice address Santa Barbara, CA, 93101

Phone (805) 874-5922

Enumeration date Jul 22, 2020

Last updated in NPPES Jul 22, 2020

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 39758 (CA) Primary

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 Jeffrey Mailes practice?

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

What is the NPI number for Jeffrey Mailes?

The National Provider Identifier (NPI) for Jeffrey Mailes is 1538777867, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Dustin Sanchez Psychiatry Physician · Santa Barbara, CA NPI 1396063129 Marianna Herzog Clinical Social Worker · Santa Barbara, CA NPI 1376151654

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-22.