John R. Courchesne, M.D.
Internal Medicine Physician · Hamilton, MT
John R. Courchesne, M.D. is an internal medicine physician with a practice address in Hamilton, Montana, and NPI 1588617617, issued on May 18, 2006. Check the license (Montana 10229, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John R. Courchesne
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 10229 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1200 Westwood Dr, Hamilton, MT 59840
- Phone
- (406) 363-2211
- Enumerated
- May 18, 2006
- Record last updated
- May 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (406) 375-4590
- Medicaid IDs
- 1588617617 MT
1588617617 WA
1588617617 ID - Medicare enrollment
- Enrolled (PECOS I20070104000145); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 324 in Montana → Look up another NPI →
Also registered at 1200 Westwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Clinton Adkins, DOEmergency Medicine Physician1245283282
- Patrick Anderson, OTD, OTR/LOccupational Therapist1255099289
- Jessica Antisdel, CRNACertified Registered Nurse Anesthetist1134798044
- Walker Ashcraft, MDFamily Medicine Physician1265485114
- William AshfordParamedic1821931445
- Gina Basque, RN, BSNEmergency Registered Nurse1902720998
Verify John R. Courchesne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 10229Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
217 Medicare Part D claims for 87 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Marcus Daly Memorial Hospital CorporationHamilton, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John R. Courchesne among 324 internal medicine physician records in Montana
John R. Courchesne, M.D. is one of 324 internal medicine physician records with a practice address in Montana. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 44% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1997 · median 2006 among the 191 with a school on file
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Hamilton
They are 9 of the 399 NPPES records with a practice address in Hamilton, and 324 internal medicine physician records in Montana.
All 324 in Montana → Every provider in Hamilton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sarah Beck, M.D.Hamilton, MT 598401629310370
- Eugenie Haight, M.D.Hamilton, MT 598401306880406
- Lawrence Hammond, M.D.Hamilton, MT 598401861477093
- Kathryn Hurlbut, D.O.Hamilton, MT 598401356728711
- Jordan Judy, DOHamilton, MT 598401336598309
- John Moreland, M.D.Hamilton, MT 598401487608980
- Paul Shingledecker, M.D.Hamilton, MT 598401245210392
- Gary Smith, M.D.Hamilton, MT 598401861439408
Common questions
What is John R. Courchesne, M.D.'s NPI number?
John R. Courchesne, M.D.'s National Provider Identifier (NPI) is 1588617617, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John R. Courchesne, M.D. located?
The NPPES record lists a practice address at 1200 Westwood Dr, Hamilton, MT, 59840. Phone: (406) 363-2211. Providers update this record themselves, so call before visiting.
How can I verify John R. Courchesne, M.D.'s license?
NPPES lists Montana license number 10229, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John R. Courchesne, M.D. prescribe under Medicare Part D?
In 2024, John R. Courchesne, M.D. had 217 Medicare Part D claims for 87 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.