Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jason Wiederin, MD

Hospitalist Physician in Duluth, MN · enumerated 2018.

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

National Provider Identifier

1669979597

Verified

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Registry record

Entity type Individual (Type 1)

Name Jason Wiederin

Credential MD

Sex Male

Practice address 420 E 1st St, Duluth, MN, 55805

Phone (182) 786-6454

Enumeration date Apr 8, 2018

Last updated in NPPES May 8, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 69087 (MN) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 69087 (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

Where does Jason Wiederin practice?

The practice location on file with NPPES is in Duluth, MN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jason Wiederin?

The National Provider Identifier (NPI) for Jason Wiederin is 1669979597, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Teri Larson-Johnson Physician Assistant · Duluth, MN NPI 1891761664 David Kunstman Family Medicine Physician · Duluth, MN NPI 1316907454 Richard Krikava Pharmacist · Duluth, MN NPI 1952455669 Amy Garcia Pediatric Gastroenterology Physician · Duluth, MN NPI 1407995434 Sarah Frenning Pediatrics Physician · Duluth, MN NPI 1043345887 Bruce Smith Internal Medicine Physician · Duluth, MN NPI 1255467841 Therese Durkin Family Medicine Physician · Duluth, MN NPI 1376668210 Ryan Wippler Diagnostic Radiology Physician · Duluth, MN NPI 1205037538

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-08.