Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

James E Knowles

Individual provider Physical Therapist · NPI 1508171190

James E Knowles is registered under Physical Therapist in Private Practice in Stoneham, Massachusetts. Qualified in 2010, 16 years ago. Practices with Orthopedic Surgery, Inc, a 25-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
16
Licensed in
MA
In the registry since
2010
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Practice location Address checks out

92 Montvale Ave Ste 1400
Stoneham, MA 02180-3647
Phone: (781) 279-8433
Fax: (781) 279-8436
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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 19168 (MA)

Record details

NPI number1508171190
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 9, 2010
Last updated in NPPESJune 17, 2026
Certification dateJune 17, 2026

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Orthopedic Surgery, Inc — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients155
Services billed 3,931 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Orthopedic Surgery, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 25 clinicians in the practice; 12 are shown here.

Other providers in Stoneham