Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Sean K. Shannahan, MD

Individual provider Diagnostic Radiology Physician · NPI 1831179571

Sean K. Shannahan, MD is a Diagnostic Radiology in Madison, Wisconsin. Graduated from Chicago College of Medicine and Surgery in 1997, 29 years ago. Practices with Dean Health Systems Inc, a 1,184-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
29
Trained at
Chicago College of Medicine and Surgery
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

700 S Park St
Madison, WI 53715-1849
Phone: (608) 251-6100
Fax: (608) 826-2710
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 44311 (WI)

Record details

NPI number1831179571
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 19, 2006
Last updated in NPPESSeptember 24, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolCHICAGO COLLEGE OF MEDICINE AND SURGERY
Graduated 1997 (29 years in practice)
Group practice Dean Health Systems Inc — 1184 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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