Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brian Keith Atwater

Social Worker in Apple Valley, CA · enumerated 2023.

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

National Provider Identifier

1700586039

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Registry record

Entity type Individual (Type 1)

Name Brian Keith Atwater

Sex Male

Practice address 17800 Us Highway 18, Apple Valley, CA, 92307

Phone (760) 552-6700

Enumeration date Mar 6, 2023

Last updated in NPPES Feb 6, 2024

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 120427 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Brian Atwater practice?

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

What is the NPI number for Brian Atwater?

The National Provider Identifier (NPI) for Brian Atwater is 1700586039, 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 2024-02-06.