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

Individual provider Dentist · NPI 1598834475

John Thomas Maffeo, DDS is a Dentist in Downers Grove, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

3450 Lacey Rd
Downers Grove, IL 60515-5430
Phone: (630) 743-4500
Fax: (630) 743-4537
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 019017644 (IL)

Record details

NPI number1598834475
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedNovember 7, 2006
Last updated in NPPESMarch 8, 2019
Mailing address3450 Lacey Rd, Downers Grove, IL 60515-5430

Other providers in Downers Grove