Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Woltman Ohlson, O.D.

Optometrist in Marshall, MN · enumerated 2006.

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

National Provider Identifier

1245294784

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Woltman Ohlson

Credential O.D.

Sex Male

Practice address 300 S Bruce St, Marshall, MN, 56258

Phone (507) 537-1427

Enumeration date Apr 13, 2006

Last updated in NPPES Nov 19, 2019

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1919 (IA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 3529 (MN) Primary

OD — Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
1067249	Medicaid	IA	—
1245294784	Medicaid	MN	—

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.

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Frequently asked questions

How do I verify Michael Ohlson's NPI record?

Cross-check NPI 1245294784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1245294784 active?

Yes — as of the latest NPPES snapshot, NPI 1245294784 is active (record last updated 2019-11-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-19.