Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Isabel Anita Johnston, PT, DPT

Individual provider Physical Therapist · NPI 1891519583

Isabel Anita Johnston, PT, DPT is registered under Physical Therapist in Private Practice in Portsmouth, New Hampshire. Qualified in 2024, 2 years ago. Practices with Saco Bay Orthopaedic and Sports Physical Therapy Inc, a 138-clinician group and accepts Medicare assignment. Licensed in Maine and New Hampshire.

Years since qualifying
2
Licensed in
ME, NH
In the registry since
2024
Specialties on file
2
What do these letters mean?
PT — Physical Therapist
A licensed therapist who treats movement, pain and injury.
DPT — Doctor of Physical Therapy
The doctoral degree now required to enter physical therapy practice.

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Practice location Address checks out

767 Islington St Ste 1C
Portsmouth, NH 03801-7206
Phone: (603) 368-9971
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 5604 (NH)
Physical Therapist Taxonomy 225100000X · Licence PT6985 (ME)

Record details

NPI number1891519583
Entity typeIndividual (Type 1)
GenderFemale
Credentials PT , DPT
Sole proprietorNo
NPI enumeratedNovember 11, 2024
Last updated in NPPESNovember 12, 2024
Certification dateNovember 12, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Saco Bay Orthopaedic And Sports Physical Therapy Inc — 138 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients12
Services billed 87 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Saco Bay Orthopaedic and Sports Physical Therapy Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 138 clinicians in the practice; 12 are shown here.

Other providers in Portsmouth