William Harper, M.D.
NPI 1366574006 · Surgery Physician · Helena, MT
William Harper, M.D. is a Surgery Physician provider in Helena, MT (NPI 1366574006).
Provider details
- NPI number
- 1366574006
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6273 (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
19 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
- 2007-03-09
- Last updated
- 2008-01-10
Frequently asked questions
- What is William Harper's NPI number?
- William Harper's National Provider Identifier (NPI) is 1366574006, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Harper's specialty?
- William Harper is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Harper located?
- William Harper's practice location on file with NPPES is 400 Saddle Dr, Helena, MT 59601-5631.
- What is William Harper's phone number?
- The practice phone number listed in the NPPES registry for William Harper is (406) 442-0099.
- Is William Harper's NPI active?
- Yes — William Harper's NPI (1366574006) is active in the NPPES registry as of the last update on 2008-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.