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

Dr. Marc Bryan Nash, MD

Individual provider Radiation Oncology Physician · NPI 1205162922

Dr. Marc Bryan Nash, MD is a Radiation Oncology Physician in Butte, Montana. Practices as a sole proprietor. Licensed in California, Iowa and Montana.

Licensed in
CA, IA, MT
In the registry since
2009
Specialties on file
3
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

400 S Clark St
Butte, MT 59701-2328
Phone: (406) 723-2621
Fax: (406) 723-2470
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 20621 (MT)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence A100507 (CA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 40589 (IA)

Record details

NPI number1205162922
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 30, 2009
Last updated in NPPESAugust 6, 2013
Mailing address400 S Clark St, Butte, MT 59701-2328

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