Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

R Joseph Isner, MD

Anesthesiology Physician in Renton, WA · enumerated 2006.

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

National Provider Identifier

1508977968

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name R Joseph Isner

Credential MD

Sex Male

Practice address 400 S 43rd St, Renton, WA, 98055

Phone (425) 353-3788

Fax (425) 353-8041

Enumeration date Aug 31, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD00036510 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
8235582	Medicaid	WA	-
0124253	Other	WA	LABOR & INDUSTRIES #
8934596	Other	WA	CRIME VICTIMS #

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 specialty is R Isner?

R Isner is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Eduardo Margo Hospitalist Physician · Renton, WA NPI 1588660831 Vantage Radiology & Diagnostic Services, A Professional Services Corp Diagnostic Radiology Physician · Renton, WA NPI 1245230598 Associated Emergency Room Physicians, Inc P.S. Emergency Medicine Physician · Renton, WA NPI 1861480840 Imaging Partners at Valley LLC Diagnostic Radiology Physician · Renton, WA NPI 1215918081 Kathleen Porter Pharmacist · Renton, WA NPI 1841272630 Nicholas Rezek Physician Assistant · Renton, WA NPI 1356329221 Brian Levy Hospitalist Physician · Renton, WA NPI 1043272925 Stephen Bretz Emergency Medical Services (Emergency Medicine) Physician · Renton, WA NPI 1174581573

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.