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

Dr. Nathaniel John Madsen, MD

Individual provider Cardiovascular Disease Physician · NPI 1609927607

Dr. Nathaniel John Madsen, MD is an Interventional Cardiology in Bozeman, Montana. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2005, 21 years ago. Practices with Bozeman Health Deaconess Hospital, a 313-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
21
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
MT
In the registry since
2007
Specialties on file
2
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

937 Highland Blvd Ste 5510
Bozeman, MT 59715-6916
Phone: (406) 414-3959
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence 18143 (MT)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence MED-PHYS-LIC-18143 (MT)

Record details

NPI number1609927607
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 16, 2007
Last updated in NPPESApril 15, 2025
Certification dateApril 15, 2025
Mailing address915 Highland Blvd, Bozeman, MT 59715-6902

Medicare enrollment

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

Medicare specialtyINTERVENTIONAL CARDIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY), INTERNAL MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Bozeman Health Deaconess Hospital — 313 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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