John Harris
NPI 1336798578 · Physician Assistant · Helena, MT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Harris is a Physician Assistant provider in Helena, MT (NPI 1336798578).
Provider details
- NPI number
- 1336798578
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 91190 (MT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
16 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Hemoglobin A1c Level83036 | 16 | $10 |
Typical Medicare-allowed amounts for these services range $10–$10 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 84 | 34 |
| Divalproex Sodium | 75 | — |
| Losartan Potassium | 72 | 13 |
| Aripiprazole | 65 | — |
| Levothyroxine Sodium | 61 | 20 |
| Pioglitazone Hcl | 54 | — |
| Metformin Hclbrand: Metformin Hcl Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-09-10
- Last updated
- 2021-12-15
- Certified
- 2021-12-15
Frequently asked questions
- What is John Harris's NPI number?
- John Harris's National Provider Identifier (NPI) is 1336798578, 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 Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Harris located?
- John Harris's practice location on file with NPPES is 1930 9th Ave, Helena, MT 59601-4759.
- What is John Harris's phone number?
- The practice phone number listed in the NPPES registry for John Harris is (406) 457-0000.
- Does John Harris accept Medicare?
- John Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Harris's NPI active?
- Yes — John Harris's NPI (1336798578) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.