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

John Waldron McCahan, MD

Individual provider Internal Medicine Physician · NPI 1144319922

John Waldron McCahan, MD is a Rheumatology in Bozeman, Montana. Graduated from Temple University School of Medicine in 2003, 23 years ago. Practices with Bozeman Health Deaconess Hospital, a 313-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Montana.

Years since qualifying
23
Trained at
Temple University School of Medicine
Licensed in
MT
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

931 Highland Blvd Ste 3260
Bozeman, MT 59715-6907
Phone: (406) 414-5198
Show map & directions

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

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 12743 (MT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 12743 (MT)

Record details

NPI number1144319922
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 12, 2006
Last updated in NPPESApril 9, 2025
Certification dateApril 9, 2025
Mailing address915 Highland Blvd, Bozeman, MT 59715-6902

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolTEMPLE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Bozeman Health Deaconess Hospital — 313 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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