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Dr. Timothy Lee Irwin, M.D.

Cardiovascular Disease Physician in Yankton, SD · enumerated 2007.

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

National Provider Identifier

1063622801

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Registry record

Entity type Individual (Type 1)
Name Dr. Timothy Lee Irwin
Credential M.D.
Sex Male
Practice address 1104 W 8th St, Yankton, SD, 57078
Phone (605) 665-7841
Fax (605) 665-0546
Enumeration date May 23, 2007
Last updated in NPPES May 19, 2022

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 8218 (SD) 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
72228 Other IA WELLMARK BCBS

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

Where does Timothy Irwin practice?
The practice location on file with NPPES is in Yankton, SD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Timothy Irwin?
The National Provider Identifier (NPI) for Timothy Irwin is 1063622801, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-19.