Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Duane Olmsted, O.D.

Optometrist in Fergus Falls, MN · enumerated 2006 · practices at Fergus Falls Optometric Center, Ltd.

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

National Provider Identifier

1699713883

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Duane Olmsted

Credential O.D.

Sex Male

Practice address 117 E Lincoln Ave, Fergus Falls, MN, 56537

Phone (218) 736-7555

Fax (218) 739-6586

Enumeration date Jun 2, 2006

Last updated in NPPES Jun 26, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2099 (MN) Primary

152W00000X Optometrist Eye and Vision Services Providers · License 2141 (WI) Secondary

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
47845OL	Other	MN	BLUE CROSS BLUE SHIELD
410049146	Other	MN	RAILROAD MEDICARE
1010283	Other	MN	PREFERRED ONE
2200947	Other	MN	MEDICA
60615	Medicaid	ND	-
119523900	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1699713883 active?

Yes, as of the latest NPPES snapshot, NPI 1699713883 is active (record last updated 2008-06-26).

How do I verify Mark Olmsted's NPI record?

Cross-check NPI 1699713883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Christine Olmsted Optometrist · Fergus Falls, MN NPI 1306884580 Fergus Falls Optometric Center, Ltd Optometrist · Fergus Falls, MN NPI 1073698601

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-26.