Mark H. Johnson, PHD
Clinical Neuropsychologist · Great Falls, MT
Mark H. Johnson, PHD is a clinical neuropsychologist with a practice address in Great Falls, Montana, and NPI 1932100518, issued on Aug 9, 2005. Check the license (Montana 198, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark H. Johnson
- Credential
- PHD
- Primary taxonomy
- Clinical Neuropsychologist 103G00000X
- License number
- 198 MT
Self-reported in NPPES; status is on the state search - Practice location
- 400 15TH Ave S Ste 205, Great Falls, MT 59405
- Phone
- (406) 731-8888
- Enumerated
- Aug 9, 2005
- Record last updated
- Apr 8, 2024
- Fax
- (406) 731-8876
- Entity
- Type 1 · individual
8 nearest clinical neuropsychologist records → All 21 in Montana → Look up another NPI →
Also registered at 400 15TH Ave S Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brook Clark, PH.D.Psychologist1831766146
- Rennae Johnson, PH DClinical Psychologist1841291705
- Mira LutzMarriage & Family Therapist1760881940
Verify Mark H. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 80.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Mark H. Johnson among 21 clinical neuropsychologist records in Montana
Mark H. Johnson, PHD is one of 21 clinical neuropsychologist records with a practice address in Montana. 52% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 52% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2024 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Neuropsychologist providers in Montana
There are 21 clinical neuropsychologist records in Montana.
All 21 in Montana → Every provider in Great Falls → Clinical Neuropsychologist nationwide →
The 8 clinical neuropsychologist records with the nearest ZIP codes
- Cory Hessel, PH.D.Great Falls, MT 594051619073327
- Mary Bogumill, PHDHelena, MT 596011295960003
- James English, PSYDHelena, MT 596011073662698
- Eric Aune, PHD, NCSPHelena, MT 596021649723990
- Joseph McElhinny, PSY.D.Billings, MT 591021750323507
- Brenda Roche, PH.D.Billings, MT 591021477604882
- Debra Sheppard, PHD, ABPPBillings, MT 591021538194659
- K. Davis, PHDBillings, MT 591011144263096
Common questions
What is Mark H. Johnson, PHD's NPI number?
Mark H. Johnson, PHD's National Provider Identifier (NPI) is 1932100518, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark H. Johnson, PHD located?
The NPPES record lists a practice address at 400 15TH Ave S Ste 205, Great Falls, MT, 59405. Phone: (406) 731-8888. Providers update this record themselves, so call before visiting.
How can I verify Mark H. Johnson, PHD's license?
NPPES lists Montana license number 198, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
What is Mark H. Johnson, PHD's MIPS final score?
The 2023 MIPS final score is 80.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.