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

Mr. John Douglas Jaco, LICSW

Q: What is the NPI number for John Jaco?

The National Provider Identifier (NPI) for John Jaco is 1518796945, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Poulsbo, WA · enumerated 2024.

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

National Provider Identifier

1518796945

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. John Douglas Jaco

Credential LICSW

Sex Male

Practice address Poulsbo, WA, 98370

Phone (425) 658-0727

Enumeration date Aug 1, 2024

Last updated in NPPES Aug 1, 2024

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW61523528 (WA) 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 John Jaco practice?

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

What is the NPI number for John Jaco?

The National Provider Identifier (NPI) for John Jaco is 1518796945, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-01.