Marc Nash, MD
NPI 1205162922 · Radiation Oncology Physician · Butte, MT
Marc Nash, MD is a Radiation Oncology Physician provider in Butte, MT (NPI 1205162922).
Provider details
- NPI number
- 1205162922
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A100507 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-10-30
- Last updated
- 2013-08-06
Frequently asked questions
- What is Marc Nash's NPI number?
- Marc Nash's National Provider Identifier (NPI) is 1205162922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Nash's specialty?
- Marc Nash is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Nash located?
- Marc Nash's practice location on file with NPPES is 400 S Clark St, Butte, MT 59701-2328.
- What is Marc Nash's phone number?
- The practice phone number listed in the NPPES registry for Marc Nash is (406) 723-2621.
- Is Marc Nash's NPI active?
- Yes — Marc Nash's NPI (1205162922) is active in the NPPES registry as of the last update on 2013-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.