NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Napa State Hospitals

Psychiatric Hospital in Napa, CA · enumerated 2017 · authorized official Renee Mack, Clinical Social Worker.

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

National Provider Identifier

1427597228

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Napa State Hospitals
Practice address 2100 Napa Vallejo Hwy, Napa, CA, 94558
Phone (707) 253-5000
Enumeration date Feb 14, 2017
Last updated in NPPES Feb 14, 2017

Taxonomy & classification

283Q00000X Psychiatric Hospital Hospitals · License 73152 (CA) Primary

Authorized official

Name Renee Mack
Title Clinical Social Worker
Phone (707) 225-3996

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 Napa State Hospitals?
The NPI for Napa State Hospitals is 1427597228, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Napa State Hospitals?
NPPES lists Renee Mack (Clinical Social Worker) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-14.