Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Madsen Maxfield Karlson 2 Pllc

Clinic/Center in Pasco, WA · enumerated 2022 · authorized official William Madsen, Dentist.

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

National Provider Identifier

1548993611

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Madsen Maxfield Karlson 2 Pllc

Practice address 6005 Burden Blvd, Pasco, WA, 99301

Phone (509) 316-2100

Fax (509) 967-2186

Enumeration date Jul 6, 2022

Last updated in NPPES Jul 6, 2022

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name William Madsen

Title Dentist

Phone (509) 967-3421

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-07-06. Verify at npiregistry.cms.hhs.gov.

Where is Madsen Maxfield Karlson 2 Pllc located?

The practice location on file with NPPES is in Pasco, WA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-06.