Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

County of Sonoma

Q: What is the NPI number for County of Sonoma?

The NPI for County of Sonoma is 1285451864, a Type 2 (organization) record in the CMS NPPES registry.

Adult Mental Health Clinic/Center in Santa Rosa, CA · enumerated 2024 · authorized official Sean Barker, Dhs Rmu Manager.

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

National Provider Identifier

1285451864

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Registry record

Entity type Organization (Type 2)

Legal business name County of Sonoma

Other name <Unavail>

Parent organization County of Sonoma

Practice address 2227 Capricorn Way Ste 201&202, Santa Rosa, CA, 95407

Phone (707) 565-3049

Enumeration date Sep 24, 2024

Last updated in NPPES Oct 15, 2025

Taxonomy & classification

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Sean Barker

Title Dhs Rmu Manager

Phone (707) 565-4861

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 County of Sonoma?

The NPI for County of Sonoma is 1285451864, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for County of Sonoma?

NPPES lists Sean Barker (Dhs Rmu Manager) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-15.