Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark C Olson, M.D.

Q: What is the NPI number for Mark Olson?

The National Provider Identifier (NPI) for Mark Olson is 1346218948, a Type 1 (individual) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Spokane, WA · enumerated 2006.

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

National Provider Identifier

1346218948

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Registry record

Entity type Individual (Type 1)

Name Mark C Olson

Credential M.D.

Sex Male

Practice address 601 W 5th Ave, Ste 400, Spokane, WA, 99204

Phone (509) 344-2663

Fax (509) 624-9179

Enumeration date Mar 9, 2006

Last updated in NPPES Nov 26, 2012

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD00013246 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
379109600	Other	WA	OWCP
8929872	Other	WA	CRIME VICTIMS
0000101463343	Other	ID	REGENCE BLUE SHIELD OF ID
OL3345	Other	WA	ASURIS NW HEALTH
0261186	Other	WA	STATE L&I
1651207	Medicaid	WA	-
513	Other	WA	GROUP HEALTH NW
200040946	Other	WA	RR MEDICARE
KQ530	Other	ID	BLUE CROSS OF IDAHO
000010146343	Other	ID	REGENCE BLUE SHIELD OF ID
003864700I	Medicaid	ID	-
0072641	Medicaid	MT	-
149065	Other	WA	DEPT OF LABOR & INDUSTRIE

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 1346218948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Olson practice?

The practice location on file with NPPES is in Spokane, WA. 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 2012-11-26.