NPI Portal NPI Lookup & Verification

John Bradley Olson, DDS

John Bradley Olson is a Dentist provider (Dentist) practicing in Dekalb, IL, registered in the NPPES registry with NPI 1033223805 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum

NPI 1033223805
Entity type Individual (Type 1)
Name John Bradley Olson
Credential DDS
Sex Male
Practice address 217 S THIRD ST, Dekalb, IL, 60115
Phone 8157582800
Fax 8157872801
Enumeration date 2006-08-18
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
122300000X Dentist Primary IL

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

Copy-ready billing details
Provider: John Olson, DDS
NPI: 1033223805
Taxonomy: 122300000X (Dentist)
Address: 217 S THIRD ST, Dekalb, IL, 60115

Verify this record

Cross-check NPI 1033223805 against the authoritative CMS record: view John Bradley Olson on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1033223805 active?
Yes — as of the latest NPPES snapshot, NPI 1033223805 is active (record last updated 2007-07-08).
How do I verify John Olson's NPI record?
Cross-check NPI 1033223805 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.