Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark A Willis DDS Ms PA

Q: What type of organization is Mark A Willis DDS Ms PA?

Mark A Willis DDS Ms PA is registered in NPPES as a Pediatric Dentistry (its primary provider taxonomy).

Pediatric Dentistry in Fort Smith, AR · enumerated 2006 · authorized official Mark Willis, Owner.

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

National Provider Identifier

1932281805

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Registry record

Entity type Organization (Type 2)

Legal business name Mark A Willis DDS Ms PA

Practice address 5604 Ellsworth Rd, Fort Smith, AR, 72903

Phone (479) 484-7336

Fax (479) 484-8128

Enumeration date Oct 20, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223P0221X Pediatric Dentistry Dental Providers Primary

Authorized official

Name Mark Willis

Title Owner

Phone (479) 484-7336

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 type of organization is Mark A Willis DDS Ms PA?

Mark A Willis DDS Ms PA is registered in NPPES as a Pediatric Dentistry (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.