Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Gregory Olson, D.D.S.

Q: What is the NPI number for Mark Olson?

The National Provider Identifier (NPI) for Mark Olson is 1871646588, a Type 1 (individual) record in the CMS NPPES registry.

Dentist in Stillwater, MN · enumerated 2007.

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

National Provider Identifier

1871646588

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Gregory Olson

Credential D.D.S.

Sex Male

Practice address 13961 60th St N, Stillwater, MN, 55082

Phone (651) 209-6312

Enumeration date Jan 18, 2007

Last updated in NPPES Nov 20, 2017

Taxonomy & licenses

122300000X Dentist Dental Providers · License 8373 (MN) Primary

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

What is the NPI number for Mark Olson?

The National Provider Identifier (NPI) for Mark Olson is 1871646588, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Olson practice?

The practice location on file with NPPES is in Stillwater, MN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-20.