Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark S Topolski, M.D.

Orthopaedic Surgery Physician in La Crosse, WI · enumerated 2006.

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

National Provider Identifier

1386618916

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Registry record

Entity type Individual (Type 1)

Name Mark S Topolski

Credential M.D.

Sex Male

Practice address 1836 South Ave, La Crosse, WI, 54601

Phone (608) 782-7300

Enumeration date Feb 13, 2006

Last updated in NPPES Apr 14, 2015

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 46129 (MN) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 55529 (WI) Primary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 39653 (IA) Secondary

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
46129	Other	MN	MINNESOTA
0101242627	Other	VA	VIRGINIA
342167800	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 Mark Topolski's NPI record?

Cross-check NPI 1386618916 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386618916 active?

Yes, as of the latest NPPES snapshot, NPI 1386618916 is active (record last updated 2015-04-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-14.