Dr. Michael J Olson, DDS MS

Dr. Michael J Olson is a Dentist provider (Dentist) practicing in Marshfield, WI, registered in the NPPES registry with NPI 1750330155 since 2006. Practices at Dental Clinic of Marshfield Sc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1750330155
Entity type	Individual (Type 1)
Name	Dr. Michael J Olson
Credential	DDS MS
Sex	Male
Practice address	306 WEST MCMILLAN ROAD, Marshfield, WI, 54449
Phone	7153871702
Fax	7153878174
Enumeration date	2006-05-10
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
122300000X	Dentist	Primary	5000550015	WI

Copy-ready billing details

Provider: Michael Olson, DDS MS
NPI: 1750330155
Taxonomy: 122300000X (Dentist)
Address: 306 WEST MCMILLAN ROAD, Marshfield, WI, 54449

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1699724815	Dental Clinic of Marshfield Sc	Organization	Dentist	Marshfield, WI
1780633867	Donald Routier	Individual	Dentist	Marshfield, WI
1437108511	Christopher Raasch	Individual	Dentist	Marshfield, WI
1811946239	William Horton	Individual	Dentist	Marshfield, WI
1710936133	Paul Bruce	Individual	Dentist	Marshfield, WI
1629027040	Steven Larson	Individual	Dentist	Marshfield, WI
1346299765	William Berry	Individual	Dentist	Marshfield, WI
1265479307	Curtis Kracht	Individual	Dentist	Marshfield, WI

Verify this record

Cross-check NPI 1750330155 against the authoritative CMS record: view Dr. Michael J Olson on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Michael Olson?

Michael Olson is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.