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

Troy A Demasters, PA

Individual provider Physician Assistant · NPI 1427048891

Troy A Demasters, PA is a Physician Assistant in Weymouth, Massachusetts. Qualified in 2000, 26 years ago. Practices with Mass General Brigham Medical Group Northern Massachusetts Inc, a 819-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona, Idaho and Massachusetts.

Years since qualifying
26
Licensed in
AZ, ID, MA
In the registry since
2005
Specialties on file
4
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

See every abbreviation used in this directory →

Practice location Address checks out

55 Fogg Rd
Weymouth, MA 02190-2432
Phone: (781) 624-8000
Fax: (208) 367-7092
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 128 Carnegie Row Ste 202, Norwood, MA 02062-5162 — (781) 762-5858

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA100230 (MA)
Physician Assistant Taxonomy 363A00000X · Licence 3777 (AZ)
Physician Assistant Taxonomy 363A00000X · Licence PA363 (ID)
Physician Assistant Taxonomy 363A00000X (ID)

Record details

NPI number1427048891
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedOctober 26, 2005
Last updated in NPPESApril 24, 2026
Certification dateApril 24, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Mass General Brigham Medical Group Northern Massachusetts Inc — 819 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Weymouth