NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alvin Thien DDS, Pllc

General Practice Dentistry in Kennewick, WA · enumerated 2023 · authorized official Alvin Thien, Dentist.

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

National Provider Identifier

1558061804

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Alvin Thien DDS, Pllc
Practice address 100 N Fruitland St Ste E, Kennewick, WA, 99336
Phone (509) 491-3388
Enumeration date Mar 6, 2023
Last updated in NPPES Mar 8, 2023

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers Primary

Authorized official

Name Alvin Thien
Title Dentist
Phone (509) 760-5009

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 is the NPI number for Alvin Thien DDS, Pllc?
The NPI for Alvin Thien DDS, Pllc is 1558061804, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Alvin Thien DDS, Pllc?
NPPES lists Alvin Thien (Dentist) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-08.