NPI Portal NPI Lookup & Verification

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

Dr. Joseph Leonard Dumovic, DC,ND

Naturopath in Tukwila, WA · enumerated 2006.

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

National Provider Identifier

1346345261

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Joseph Leonard Dumovic
Credential DC,ND
Sex Male
Practice address Tukwila, WA, 98188
Fax (206) 244-0897
Enumeration date Sep 14, 2006
Last updated in NPPES Nov 6, 2012

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License CH00000934 (WA) Secondary
175F00000X Naturopath Other Service Providers · License NT00000367 (WA) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
DU0240 Other WA REGENCE-NATUROPATHIC
2237907 Medicaid WA -
0013835 Other WA L&I-NATUROPATHIC
DU0670 Other WA REGENCE-CHIROPRACTIC
0047534 Other WA L&I-CHIROPRACTIC

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 Joseph Dumovic practice?
The practice location on file with NPPES is in Tukwila, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Dumovic?
The National Provider Identifier (NPI) for Joseph Dumovic is 1346345261, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-06.