Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

William A. Seper, DDS, PC

Organization General Practice Dentistry · NPI 1700968450

William A. Seper, DDS, PC provides General Practice Dentistry in Orland Park, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

9661 W 143rd St Ste 100
Orland Park, IL 60462-2088
Phone: (708) 403-0100
Fax: (708) 403-8657
Show map & directions

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

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X (IL)

Record details

NPI number1700968450
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Seper — President · (708) 403-0100
Other names Orland Dental Center
NPI enumeratedOctober 20, 2006
Last updated in NPPESAugust 22, 2020
Mailing address9661 W 143rd St, Suite 100, Orland Park, IL 60462-2088

Other providers in Orland Park