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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TROY A DEMASTERS PA
NPI 1427048891
Physician Assistant in Weymouth, MA

Active since October 26, 2005PECOS EnrolledAccepts Medicare Assignment
55 FOGG RD, WEYMOUTH, MA 02190(781) 624-8000(208) 367-7092 Get Directions Write a Review

NPPES record last updated: August 27, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Aug 27, 2026, Apr 24, 2026 (2 updates tracked since 2026).

About Troy A Demasters Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TROY A DEMASTERS PA (NPI 1427048891) is an individual physician assistant in Weymouth, Massachusetts, licensed in Massachusetts (PA100230) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and maintains a secondary practice location in Norwood.

NPPES Registry Identity

NPI1427048891
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameTROY A DEMASTERSCredential: PA
Location Address55 FOGG RDWeymouth, MA 02190-2432
Mailing Address55 Fogg RdWeymouth, MA 02190-2432 · (781) 624-8000
Phone(781) 624-8000
Fax(208) 367-7092
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateOctober 26, 2005
Last NPPES UpdateAugust 27, 20262 updates tracked since enumeration
NPPES CertifiedAugust 27, 2026
✔ NPI 1427048891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in MA · PA100230✔ Licensed in AZ · 3777
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
55 FOGG RD, Weymouth, MA 02190
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Secondary Practice Location 1

Location 1128 Carnegie Row Ste 202Norwood, MA 02062-5162 · Phone (781) 762-5858 · Fax (781) 617-6202

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Troy A Demasters Pa is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6406870930
PECOS Enrollment IDI20240205001389
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Shore Medical Center -

Acute Care Hospitals · Salem, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220035
Location81 Highland AvenueSalem, MA 01970 · Essex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LINDA CASHMAN-BELTON R.D.
Dietitian, Registered
55 FOGG RD
WEYMOUTH, MA 02190
Norfolk County (781) 340-4293
DR. ARI CHARLES SACKS M.D.
Radiology (Diagnostic Radiology)
55 FOGG RD
WEYMOUTH, MA 02190
Norfolk County (781) 624-8000
OLIVIA SERPA
Dietitian, Registered
55 FOGG RD
WEYMOUTH, MA 02190
Norfolk County (781) 624-8935
MRS. PAULA L KENNEDY RDN
Dietitian, Registered
55 FOGG RD
SOUTH WEYMOUTH, MA 02190
Norfolk County (781) 624-7267
DONNA J HUDSON-BRYANT FNP-BC, PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
55 FOGG RD
WEYMOUTH, MA 02190
Norfolk County (781) 624-8000
DR. GABRIEL PARIS DO
Pediatrics
55 FOGG RD
S WEYMOUTH, MA 02190
Norfolk County (781) 624-8000
MELISSA MCPHERSON
Social Worker (Clinical)
55 FOGG RD
WEYMOUTH, MA 02190
Norfolk County (781) 624-3021
NKIRU SOFIA OGBUEFI
Student in an Organized Health Care Education/Training Program
55 FOGG RD
SOUTH WEYMOUTH, MA 02190
Norfolk County (781) 624-8000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Troy Demasters's NPI number?

The NPI number for Troy Demasters is 1427048891. It was assigned to this individual provider in the NPPES registry on October 26, 2005.

Where is Troy Demasters located?

Troy Demasters practices at 55 Fogg Rd, Weymouth, MA 02190. The listed phone number is (781) 624-8000.

What is Troy Demasters's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Troy Demasters enrolled in Medicare?

Yes. Troy Demasters is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Troy Demasters accept?

Health plans from Providence Health Plan list Troy Demasters as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Troy Demasters affiliated with any hospitals?

According to CMS data, Troy Demasters is affiliated with North Shore Medical Center -.

When was this NPI record last updated?

The NPPES record for Troy Demasters was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.