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

Dr. William Henry Grotz IV, DDS

Individual provider General Practice Dentistry · NPI 1720113855

Dr. William Henry Grotz IV, DDS is a General Practice Dentistry in Oak Lawn, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
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

4815 W 103rd St
Oak Lawn, IL 60453
Phone: (708) 425-5001
Fax: (708) 423-0727
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 1917438 (IL)

Record details

NPI number1720113855
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedFebruary 22, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Oak Lawn