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

Dr. Mark Sefcheck, DDS

Individual provider Dentist · NPI 1558509497

Dr. Mark Sefcheck, DDS is a Dentist in Naperville, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2009
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.

See every abbreviation used in this directory →

Practice location Address checks out

129 N Washington St
Naperville, IL 60540-4511
Phone: (630) 961-1048
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 019015718 (IL)

Record details

NPI number1558509497
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedJanuary 30, 2009
Last updated in NPPESJanuary 30, 2009
Mailing address129 N Washington St, Naperville, IL 60540-4511

Other providers in Naperville