Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ryan Johnson, DMD

Individual provider Periodontics · NPI 1447924808

Ryan Johnson, DMD is a Periodontics in Oak Brook, Illinois. Practices as a sole proprietor and works from 4 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2021
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

See every abbreviation used in this directory →

Practice location Address checks out

120 Oakbrook Ctr Ste 714
Oak Brook, IL 60523-1831
Phone: (630) 654-3331
Fax: (630) 954-2910
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1641 N Milwaukee Ave Ste 3, Libertyville, IL 60048-1386 — (847) 349-4306
  • 720 Brom Ct Ste 102, Naperville, IL 60540-6533 — (630) 717-6717
  • 23909 W Renwick Rd Ste 103, Plainfield, IL 60544-2109 — (815) 609-3636

Specialties & licences

Periodontics (primary) Taxonomy 1223P0300X · Licence 021.003528 (IL)

Record details

NPI number1447924808
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorYes
NPI enumeratedAugust 9, 2021
Last updated in NPPESJuly 10, 2026
Certification dateJuly 10, 2026
Mailing address958 Kensington Dr, Northbrook, IL 60062-5975

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