Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Scott Killingsworth, D.M.D.

Pediatric Dentistry in Siloam Springs, AR · enumerated 2011.

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

National Provider Identifier

1871887422

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Scott Killingsworth

Credential D.M.D.

Sex Male

Practice address 2125 E Main St Ste 13, Siloam Springs, AR, 72761

Phone (479) 231-3005

Fax (479) 282-0449

Enumeration date May 31, 2011

Last updated in NPPES Jan 18, 2021

Taxonomy & licenses

122300000X Dentist Dental Providers · License 3817 (AR) Secondary

1223P0221X Pediatric Dentistry Dental Providers · License 95 (AR) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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 specialty is Matthew Killingsworth?

Matthew Killingsworth is registered in NPPES with the primary taxonomy of Pediatric Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-18.