Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael P Donnenwerth, DPM

Podiatrist in Winona, MN · enumerated 2010.

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

National Provider Identifier

1154647808

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Registry record

Entity type Individual (Type 1)

Name Michael P Donnenwerth

Credential DPM

Sex Male

Practice address 855 Mankato Ave, Winona, MN, 55987

Phone (507) 454-3680

Enumeration date Apr 20, 2010

Last updated in NPPES Aug 2, 2013

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 1018 (WI) Secondary

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 909 (MN) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

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

How do I verify Michael Donnenwerth's NPI record?

Cross-check NPI 1154647808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1154647808 active?

Yes, as of the latest NPPES snapshot, NPI 1154647808 is active (record last updated 2013-08-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-02.