Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Neil W Thornhill

General Practice Dentistry in New Castle, IN · enumerated 2006 · practices at Neil W. Thornhill DDS.

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

National Provider Identifier

1346270949

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Neil W Thornhill

Sex Male

Practice address New Castle, IN, 47362

Phone (765) 529-3686

Fax (765) 529-3693

Enumeration date Jul 3, 2006

Last updated in NPPES Jul 9, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 7818 (IN) Primary

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 NPI 1346270949 active?

Yes, as of the latest NPPES snapshot, NPI 1346270949 is active (record last updated 2007-07-09).

How do I verify Neil Thornhill's NPI record?

Cross-check NPI 1346270949 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Neil W. Thornhill DDS General Practice Dentistry · New Castle, IN NPI 1750198081

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.