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John Harris, M.D.
NPI 1710189709 · Psychiatry Physician · Helena, MT
John Harris, M.D. is a Psychiatry Physician provider in Helena, MT (NPI 1710189709).
Provider details
- NPI number
- 1710189709
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 11371 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
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
900 Jackson St
Center for Mental Health
Helena, MT 59601-3428
Phone: (406) 443-7151
Fax: (406) 443-3420
Street-level locationGet directions
Mailing address
Po Box 3089
Great Falls, MT 59403-3089
Registry dates
- Enumerated
- 2007-06-03
- Last updated
- 2023-03-07
Frequently asked questions
- What is John Harris's NPI number?
- John Harris's National Provider Identifier (NPI) is 1710189709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Harris's specialty?
- John Harris is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Harris located?
- John Harris's practice location on file with NPPES is 900 Jackson St, Helena, MT 59601-3428.
- What is John Harris's phone number?
- The practice phone number listed in the NPPES registry for John Harris is (406) 443-7151.
- Is John Harris's NPI active?
- Yes — John Harris's NPI (1710189709) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.