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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

House, Lee, Mast, Mcdonald and Nelson, PC

Pediatric Dentistry in Walla Walla, WA · enumerated 2016 · authorized official Mellissa Renner, Regional Operations Manager.

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

National Provider Identifier

1740630342

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Registry record

Entity type Organization (Type 2)
Legal business name House, Lee, Mast, Mcdonald and Nelson, PC
Other name <Unavail>
Practice address 107 E Cherry St, Walla Walla, WA, 99362
Enumeration date Jun 15, 2016
Last updated in NPPES Aug 19, 2020

Taxonomy & classification

1223P0221X Pediatric Dentistry Dental Providers · License DE60203055 (WA) Primary

Authorized official

Name Mellissa Renner
Title Regional Operations Manager

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.

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Frequently asked questions

What is the NPI number for House, Lee, Mast, Mcdonald and Nelson, PC?
The NPI for House, Lee, Mast, Mcdonald and Nelson, PC is 1740630342, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for House, Lee, Mast, Mcdonald and Nelson, PC?
NPPES lists Mellissa Renner (Regional Operations Manager) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-19.