NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Howard Olson, DDS

General Practice Dentistry in Pipestone, MN · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144399981

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. William Howard Olson
Credential DDS
Sex Male
Practice address 101 2nd St Se, Pipestone, MN, 56164
Fax (507) 825-6413
Enumeration date Nov 7, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 6796 (MN) Primary
1223G0001X General Practice Dentistry Dental Providers · License D625 (SD) Secondary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does William Olson practice?
The practice location on file with NPPES is in Pipestone, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Olson?
The National Provider Identifier (NPI) for William Olson is 1144399981, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.