Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John James Nishan

Psychiatric/Mental Health Registered Nurse in Oregon City, OR · enumerated 2024.

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

National Provider Identifier

1285464727

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Registry record

Entity type Individual (Type 1)

Name John James Nishan

Sex Male

Practice address 1415 16th St, Oregon City, OR, 97045

Phone (503) 705-7191

Enumeration date Aug 7, 2024

Last updated in NPPES Aug 7, 2024

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 201143290RN (OR) 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

Is NPI 1285464727 active?

Yes, as of the latest NPPES snapshot, NPI 1285464727 is active (record last updated 2024-08-07).

How do I verify John Nishan's NPI record?

Cross-check NPI 1285464727 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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