Roy Hall, M.D.
NPI 1417953019 · Hematology & Oncology Physician · Billings, MT
Roy Hall, M.D. is a Hematology & Oncology Physician provider in Billings, MT (NPI 1417953019).
Provider details
- NPI number
- 1417953019
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 10706 (MT)
Specialties & taxonomies
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
20 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
- 2005-06-28
- Last updated
- 2018-12-07
Frequently asked questions
- What is Roy Hall's NPI number?
- Roy Hall's National Provider Identifier (NPI) is 1417953019, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roy Hall's specialty?
- Roy Hall is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Roy Hall located?
- Roy Hall's practice location on file with NPPES is 2110 Overland Ave Ste 102, Billings, MT 59102-6447.
- What is Roy Hall's phone number?
- The practice phone number listed in the NPPES registry for Roy Hall is (406) 969-6310.
- Is Roy Hall's NPI active?
- Yes — Roy Hall's NPI (1417953019) is active in the NPPES registry as of the last update on 2018-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.