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

Dr. William Harold Olson, DDS

Individual provider Dentist · NPI 1801994124

Dr. William Harold Olson, DDS is a Dentist in Grand Forks, North Dakota. Licensed in North Dakota. Registered with an NPI since 2006.

Licensed in
ND
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

2810 17th Ave S
Grand Forks, ND 58201-4010
Phone: (701) 775-0641
Fax: (701) 746-9328
Show map & directions

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

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 1556 (ND)

Record details

NPI number1801994124
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESJuly 8, 2007
Mailing address2810 17th Ave South, Grand Forks, ND 58201-4010

Other providers in Grand Forks