John Harris
Physician Assistant · Helena, MT
John Harris is a physician assistant with a practice address in Helena, Montana, and NPI 1336798578, issued on Sep 10, 2019. Check the license (Montana 91190, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Harris
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 91190 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1930 9TH Ave, Helena, MT 59601
- Phone
- (406) 457-0000
- Enumerated
- Sep 10, 2019
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201224000148); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 698 in Montana → Look up another NPI →
Also registered at 1930 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amy Barton, LCPCProfessional Counselor1669218202
- Venus Brown, RN, IBCLCLactation Consultant (Registered Nurse)1538452081
- Rebekah Coonen, LCPC, LACProfessional Counselor1013543339
- Courtnay Crowell, M.D.Family Medicine Physician1871617332
- James Defoe, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1295398576
Verify John Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 91190Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average physician assistant in 2024
1,680 Medicare Part D claims for 212 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 43 claims were for opioids.
Most prescribed
- Atorvastatin Calcium84 claims
- Divalproex Sodium75 claims
- Losartan Potassium72 claims
- Aripiprazole65 claims
- Levothyroxine Sodium61 claims
- Metformin Hcl Er54 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Pureview Health CenterHelena, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Harris among 698 physician assistant records in Montana
John Harris is one of 698 physician assistant records with a practice address in Montana. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 67% of them.
- NPI issued2019 · 67% of these records are older, 29% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2020 · median 2016 among the 514 with a school on file
- Record last updated2021 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 physician assistant records list a practice address in Helena
They are 49 of the 1,591 NPPES records with a practice address in Helena, and 698 physician assistant records in Montana.
All 698 in Montana → Every provider in Helena → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Lura Brown, PA-CHelena, MT 596011073799755
- Ashley Bryson, PA-CHelena, MT 596011851628465
- Jeffrey Chandler, PA-CHelena, MT 596011891737649
- Trapper Hogberg, PA-CHelena, MT 596011689813008
- Jody Isbell, PA-CHelena, MT 596011205165248
- Lindsey Maierle, PA-CHelena, MT 596011902185200
- Rachel Mattern, PA-CHelena, MT 596011275539884
- Aaron Peters, PA-CHelena, MT 596011891941555
Common questions
What is John Harris's NPI number?
John Harris's National Provider Identifier (NPI) is 1336798578, issued on Sep 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Harris located?
The NPPES record lists a practice address at 1930 9TH Ave, Helena, MT, 59601. Phone: (406) 457-0000. Providers update this record themselves, so call before visiting.
How can I verify John Harris's license?
NPPES lists Montana license number 91190, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does John Harris prescribe under Medicare Part D?
In 2024, John Harris had 1,680 Medicare Part D claims for 212 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.