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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Won S Song, M.D.

Diagnostic Radiology Physician in Eau Claire, WI · enumerated 2005.

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

National Provider Identifier

1144201930

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Registry record

Entity type Individual (Type 1)
Name Dr. Won S Song
Credential M.D.
Sex Male
Practice address Eau Claire, WI, 54703
Phone (715) 838-5222
Enumeration date Nov 8, 2005
Last updated in NPPES May 26, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 65674-20 (WI) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 65674 (WI) 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.

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Frequently asked questions

What is the NPI number for Won Song?
The National Provider Identifier (NPI) for Won Song is 1144201930, a Type 1 (individual) record in the CMS NPPES registry.
Where does Won Song practice?
The practice location on file with NPPES is in Eau Claire, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-26.