NPI Portal NPI Lookup & Verification

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

Dr. Matthew James Madsen, D.M.D, M.D.

Oral and Maxillofacial Surgery (Dentist) in Escondido, CA · enumerated 2007 · practices at Madsen Andrus Thompson and Soelberg Partnership.

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

National Provider Identifier

1164624433

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Matthew James Madsen
Credential D.M.D, M.D.
Sex Male
Practice address Escondido, CA, 92025
Enumeration date May 31, 2007
Last updated in NPPES Aug 28, 2013

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

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 8480 (KY) Primary
1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 62546 (CA) Secondary
1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License A125274 (CA) Secondary
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

Is NPI 1164624433 active?
Yes, as of the latest NPPES snapshot, NPI 1164624433 is active (record last updated 2013-08-28).
How do I verify Matthew Madsen's NPI record?
Cross-check NPI 1164624433 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 →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-28.