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

W James Ongena, DDS

Individual provider General Practice Dentistry · NPI 1295896652

W James Ongena, DDS is a General Practice Dentistry in Rockford, 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.

See every abbreviation used in this directory →

Practice location Address checks out

1646 N Alpine Rd
Rockford, IL 61107-1436
Phone: (815) 397-9700
Fax: (815) 397-4631
Show map & directions

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

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence IL 14648 (IL)

Record details

NPI number1295896652
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedDecember 12, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1646 N Alpine Rd, Rockford, IL 61107-1436

Other providers in Rockford