Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

County of Yolo State of California

Q: What is the NPI number for County of Yolo State of California?

The NPI for County of Yolo State of California is 1659219525, a Type 2 (organization) record in the CMS NPPES registry.

Prison Health Clinic/Center in Woodland, CA · enumerated 2026 · authorized official Ismael Hernandez, In-Custody Programs Coordinator.

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

National Provider Identifier

1659219525

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Registry record

Entity type Organization (Type 2)

Legal business name County of Yolo State of California

Practice address 140 Tony Diaz Drive, Woodland, CA, 95776

Phone (530) 406-5187

Fax (530) 662-1255

Enumeration date Mar 23, 2026

Last updated in NPPES Sep 30, 2026

Taxonomy & classification

261QP2400X Prison Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Ismael Hernandez

Title In-Custody Programs Coordinator

Phone (530) 406-5187

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

Who is the authorized official for County of Yolo State of California?

NPPES lists Ismael Hernandez (In-Custody Programs Coordinator) as the authorized official for this organization.

What is the NPI number for County of Yolo State of California?

The NPI for County of Yolo State of California is 1659219525, a Type 2 (organization) record in the CMS NPPES registry.

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