NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jonathan Michael Harper, RN, MSN, NP-C, ARNP

Gerontology Nurse Practitioner in Seattle, WA · enumerated 2021.

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

National Provider Identifier

1124792148

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Jonathan Michael Harper
Credential RN, MSN, NP-C, ARNP
Sex Male
Practice address 4515 Martin Luther King Jr Way S Ste 100, Seattle, WA, 98108
Phone (206) 320-5325
Enumeration date Aug 3, 2021
Last updated in NPPES Aug 3, 2021

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP61190518 (WA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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

How do I verify Jonathan Harper's NPI record?
Cross-check NPI 1124792148 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1124792148 active?
Yes, as of the latest NPPES snapshot, NPI 1124792148 is active (record last updated 2021-08-03).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-03.