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

Dr. Deborah Overoyen, DDS

Individual provider Dentist · NPI 1528236080

Dr. Deborah Overoyen, DDS is a Dentist in Mount Vernon, Illinois. Licensed in Illinois. Registered with an NPI since 2008.

Licensed in
IL
In the registry since
2008
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

101 S 27th St
Mount Vernon, IL 62864-2955
Phone: (618) 244-2625
Fax: (618) 244-2525
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 01927565 (IL)

Record details

NPI number1528236080
Entity typeIndividual (Type 1)
GenderFemale
Credentials DDS
Sole proprietorNo
NPI enumeratedFebruary 18, 2008
Last updated in NPPESMay 15, 2009

Other providers in Mount Vernon