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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

RYAN JOHNSON DMD
NPI 1447924808
Dentist - Periodontics in Oak Brook, IL

Active since August 09, 2021
120 OAKBROOK CTR STE 714, OAK BROOK, IL 60523(630) 654-3331(630) 954-2910 Get Directions Write a Review

NPPES record last updated: July 10, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 10, 2026, Feb 22, 2025, Aug 9, 2021 (3 updates tracked since 2021).

About Ryan Johnson Dmd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RYAN JOHNSON DMD (NPI 1447924808) is an individual periodontics provider in Oak Brook, Illinois, licensed in Illinois (021.003528) and active in the NPI registry since August 2021. He maintains 3 additional practice locations.

NPPES Registry Identity

NPI1447924808
Entity TypeIndividualMale
Primary Taxonomy1223P0300X
Provider Legal NameRYAN JOHNSONCredential: DMD
Location Address120 OAKBROOK CTR STE 714Oak Brook, IL 60523-1831
Mailing Address958 Kensington DrNorthbrook, IL 60062-5975 · (941) 914-5056
Phone(630) 654-3331
Fax(630) 954-2910
Sole ProprietorYes
Enumeration DateAugust 9, 2021
Last NPPES UpdateJuly 10, 20263 updates tracked since enumeration
NPPES CertifiedJuly 10, 2026
✔ NPI 1447924808 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License✔ Licensed in IL · 021.003528
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
120 OAKBROOK CTR STE 714, Oak Brook, IL 60523
Open in Google Maps ↗

Secondary Practice Locations 3

Location 123909 W Renwick Rd Ste 103Plainfield, IL 60544-2109 · Phone (815) 609-3636 · Fax (815) 609-3399
Location 21641 N Milwaukee Ave Ste 3Libertyville, IL 60048-1386 · Phone (847) 349-4306
Location 3720 Brom Ct Ste 102Naperville, IL 60540-6533 · Phone (630) 717-6717 · Fax (630) 717-7790

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BENJAMIN SCHWABE D.D.S.
Dentist
120 OAKBROOK CTR STE 714
OAK BROOK, IL 60523
Dupage County (630) 654-3331

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ryan Johnson's NPI number?

The NPI number for Ryan Johnson is 1447924808. It was assigned to this individual provider in the NPPES registry on August 9, 2021.

Where is Ryan Johnson located?

Ryan Johnson practices at 120 Oakbrook Ctr Ste 714, Oak Brook, IL 60523. The listed phone number is (630) 654-3331.

What is Ryan Johnson's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

What insurance does Ryan Johnson accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list Ryan Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ryan Johnson was last updated on July 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.