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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brad Jason Guenthner, D.M.D.

General Practice Dentistry in West Chester, PA · enumerated 2006 · practices at Westtown Dental Associates, LLC.

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

National Provider Identifier

1225100415

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Registry record

Entity type Individual (Type 1)
Name Dr. Brad Jason Guenthner
Credential D.M.D.
Sex Male
Practice address 1581 Mcdaniel Dr, West Chester, PA, 19380
Phone (610) 436-9736
Enumeration date Nov 14, 2006
Last updated in NPPES Jun 17, 2008

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DS035431 (PA) 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.

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Frequently asked questions

Is NPI 1225100415 active?
Yes, as of the latest NPPES snapshot, NPI 1225100415 is active (record last updated 2008-06-17).
How do I verify Brad Guenthner's NPI record?
Cross-check NPI 1225100415 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-17.