Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mitchell Lon Splinter, DDS

Dentist in Westby, WI · enumerated 2024 · practices at Mitchell L. Splinter, DDS, LLC.

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

National Provider Identifier

1346091857

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mitchell Lon Splinter

Credential DDS

Sex Male

Practice address 214 S Main St, Westby, WI, 54667

Phone (608) 634-3128

Enumeration date Apr 1, 2024

Last updated in NPPES Jul 1, 2026

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

122300000X Dentist Dental Providers · License 6001497-15 (WI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

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.

What specialty is Mitchell Splinter?

Mitchell Splinter is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Mitchell L. Splinter, DDS, LLC Dental Clinic/Center · Westby, WI NPI 1427992312

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