NPPES file of Aug 9, 2026

Isabel Anita Johnston, PT, DPT

Physical Therapist · Portsmouth, NH

Isabel Anita Johnston, PT, DPT is a physical therapist with a practice address in Portsmouth, New Hampshire, and NPI 1891519583, issued on Nov 11, 2024. Check the license (New Hampshire 5604, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1891519583
Name
Isabel Anita Johnston
Credential
PT, DPT
Primary taxonomy
Physical Therapist 225100000X
License numbers
5604 NH
PT6985 ME
Self-reported in NPPES; status is on the state search
Practice location
767 Islington St Ste 1C, Portsmouth, NH 03801
Phone
(603) 368-9971
Enumerated
Nov 11, 2024
Record last updated
Nov 12, 2024
Medicare enrollment
Enrolled (PECOS I20250106002929); accepts Medicare assignment
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 767 Islington St Ste 1C

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

  1. Valerie Nichols, PT, DPTPhysical Therapist1013645654

Verify Isabel Anita Johnston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 5604
    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
Find 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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Bills Medicare through one group practice

  1. Saco Bay Orthopaedic And Sports Physical Therapy IncNorth Berwick, ME

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

Isabel Anita Johnston among 1,663 physical therapist records in New Hampshire

Isabel Anita Johnston, PT, DPT is one of 1,663 physical therapist records with a practice address in New Hampshire. 22% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 94% of them.

  • NPI issued2024 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 22% of these records are
  • In the CMS Doctors and Clinicians fileYes · 24% of these records are
  • Graduated2024 · median 2012 among the 404 with a school on file
  • Record last updated2024 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

80 physical therapist records list a practice address in Portsmouth

They are 80 of the 1,860 NPPES records with a practice address in Portsmouth, and 1,663 physical therapist records in New Hampshire.

The 8 physical therapist records with the nearest ZIP codes

  1. George Barnard, PTPortsmouth, NH 038011679549927
  2. Matthew Begnoche, PTPortsmouth, NH 038011992742001
  3. Jessica Blasko, PT, DPTPortsmouth, NH 038011427071877
  4. David Burchuk, P.T.Portsmouth, NH 038011417048596
  5. Teresa Camarata, P.T.Portsmouth, NH 038011306800263
  6. Christopher Campbell, DPTPortsmouth, NH 038011255429460
  7. Daniel FleuryPortsmouth, NH 038011366454605
  8. Diane Kleist, PTPortsmouth, NH 038011114938644

Common questions

What is Isabel Anita Johnston, PT, DPT's NPI number?

Isabel Anita Johnston, PT, DPT's National Provider Identifier (NPI) is 1891519583, issued on Nov 11, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Isabel Anita Johnston, PT, DPT located?

The NPPES record lists a practice address at 767 Islington St Ste 1C, Portsmouth, NH, 03801. Phone: (603) 368-9971. Providers update this record themselves, so call before visiting.

How can I verify Isabel Anita Johnston, PT, DPT's license?

NPPES lists New Hampshire license number 5604, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity 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.