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

John R Courchesne, MD

Individual provider Internal Medicine Physician · NPI 1588617617

John R Courchesne, MD is an Internal Medicine in Hamilton, Montana. Graduated from University of Washington School of Medicine in 1997, 29 years ago. Practices with Marcus Daly Memorial Hospital Corporation, a 97-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
29
Trained at
University of Washington School of Medicine
Licensed in
MT
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

1200 Westwood Dr
Hamilton, MT 59840-2345
Phone: (406) 363-2211
Fax: (406) 375-4590
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 10229 (MT)

Record details

NPI number1588617617
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 18, 2006
Last updated in NPPESMay 12, 2021
Certification dateMay 12, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Marcus Daly Memorial Hospital Corporation — 97 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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