NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Duane K Undeland, MD

Internal Medicine Physician in La Crescent, MN · enumerated 2008 · practices at Gundersen Clinic Ltd.

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

National Provider Identifier

1811150048

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Duane K Undeland
Credential MD
Sex Male
Practice address 226 N 2nd St, La Crescent, MN, 55947
Enumeration date Jul 8, 2008
Last updated in NPPES Jun 2, 2015

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 52620 (WI) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 53761 (MN) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Duane Undeland?
The National Provider Identifier (NPI) for Duane Undeland is 1811150048, a Type 1 (individual) record in the CMS NPPES registry.
Where does Duane Undeland practice?
The practice location on file with NPPES is in La Crescent, MN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-02.