NPPES file of Aug 9, 2026

James Johnston, MD

Diagnostic Radiology Physician · Salem, NH

James Johnston, MD is a diagnostic radiology physician with a practice address in Salem, New Hampshire, and NPI 1770578742, issued on Sep 15, 2005. Check the license (New Hampshire 6934, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770578742
Name
James Johnston
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
6934 NH
52677 MA
Self-reported in NPPES; status is on the state search
Practice location
31 Stiles RD, Salem, NH 03079
Phone
(603) 893-4352
Enumerated
Sep 15, 2005
Record last updated
Mar 7, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(603) 894-4522
Medicaid ID
6181635 MA
Medicare enrollment
Enrolled (PECOS I20051022000001); accepts Medicare assignment
Medical or professional school
Geisel School Of Medicine At Dartmouth, 1979
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 31 Stiles RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Janice Lee, DOFamily Medicine Physician1831117829
  2. Mark Pace, DOFamily Medicine Physician1497709448
  3. Shuja Saleem, MDGynecology Physician1124151287

Verify James Johnston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 6934
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 94.3 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.

  1. Qualityout of 100 · 30% of the final score88.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. New England Radiological Consortium LLCRochester, NH
  2. Portsmouth Radiological PAPortsmouth, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James Johnston among 201 diagnostic radiology physician records in New Hampshire

James Johnston, MD is one of 201 diagnostic radiology physician records with a practice address in New Hampshire. 72% 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, 92% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1979 · median 2003 among the 140 with a school on file
  • Record last updated2014 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in New Hampshire

There are 201 diagnostic radiology physician records in New Hampshire.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Mary Anderson, MDSalem, NH 030791346234192
  2. John Niceforo, MDWindham, NH 030871710972518
  3. John Alexander, M.D.New Boston, NH 030701689600652
  4. Daniel Abbis, D.O.Nashua, NH 030631427068709
  5. Matthew Daily, M.D.Nashua, NH 030631205063716
  6. Tahani Alturkistani, M.DNashua, NH 030601396975496
  7. Walter Champion, M.D.Nashua, NH 030601811257975
  8. Andreas Christensen, MDNashua, NH 030601962997122

Common questions

What is James Johnston, MD's NPI number?

James Johnston, MD's National Provider Identifier (NPI) is 1770578742, issued on Sep 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is James Johnston, MD located?

The NPPES record lists a practice address at 31 Stiles RD, Salem, NH, 03079. Phone: (603) 893-4352. Providers update this record themselves, so call before visiting.

How can I verify James Johnston, MD's license?

NPPES lists New Hampshire license number 6934, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is James Johnston, MD's MIPS final score?

The 2023 MIPS final score is 94.3 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.