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

Dr. William Paul Dejean, DDS

Individual provider Dentist · NPI 1770710857

Dr. William Paul Dejean, DDS is a Dentist in Chicago, 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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1363 N Ashland Ave
Chicago, IL 60622-2262
Phone: (773) 384-3885
Fax: (773) 384-0445
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 019020647 (IL)

Record details

NPI number1770710857
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedJune 16, 2009
Last updated in NPPESJune 16, 2009
Mailing address1363 N Ashland Ave, Chicago, IL 60622-2262

Other providers in Chicago