Troy A. Demasters, PA
Physician Assistant · Weymouth, MA
Troy A. Demasters, PA is a physician assistant with a practice address in Weymouth, Massachusetts, and NPI 1427048891, issued on Oct 26, 2005. Check the license (Massachusetts PA100230, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Troy A. Demasters
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA100230 MA
3777 AZ
PA363 ID
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fogg RD, Weymouth, MA 02190
- Phone
- (781) 624-8000
- Enumerated
- Oct 26, 2005
- Record last updated
- Apr 24, 2026
- Fax
- (208) 367-7092
- Medicare enrollment
- Enrolled (PECOS I20240205001389); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 55 Fogg RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samuel BabchuckRegistered Nurse1700559515
- Shannon Badgett, LCSWClinical Social Worker1972142834
Verify Troy A. Demasters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA100230Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average physician assistant in 2024
58 Medicare Part D claims for 31 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Oxycodone Hcl14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $30.65
1 payment: food and beverage; the largest payer was Solventum Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Dermatology Associates PCNorwood, MA
- Mass General Brigham Medical Group Northern Massachusetts IncDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Troy A. Demasters among 4,713 physician assistant records in Massachusetts
Troy A. Demasters, PA is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2000 · median 2019 among the 3,217 with a school on file
- Record last updated2026 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
50 physician assistant records list a practice address in Weymouth
They are 50 of the 1,156 NPPES records with a practice address in Weymouth, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Weymouth → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kathleen Gallagher, PASouth Weymouth, MA 021901770560781
- Lisa Grant, PA-CSouth Weymouth, MA 021901285717736
- Karen Jeghers, PAWeymouth, MA 021901073722435
- Nicole Mahoney, PA-CSouth Weymouth, MA 021901225325368
- Farah Malary, PA-CSouth Weymouth, MA 021901649591983
- Thomas Maningas, P.A.Weymouth, MA 021901154389351
- Jordan O'Connor, PAWeymouth, MA 021901598062713
- Anthony Pazienza, PA-CWeymouth, MA 021901710125190
Common questions
What is Troy A. Demasters, PA's NPI number?
Troy A. Demasters, PA's National Provider Identifier (NPI) is 1427048891, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Troy A. Demasters, PA located?
The NPPES record lists a practice address at 55 Fogg RD, Weymouth, MA, 02190. Phone: (781) 624-8000. Providers update this record themselves, so call before visiting.
How can I verify Troy A. Demasters, PA's license?
NPPES lists Massachusetts license number PA100230, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Troy A. Demasters, PA prescribe under Medicare Part D?
In 2024, Troy A. Demasters, PA had 58 Medicare Part D claims for 31 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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.