William Griffiths, PA-C
Medical Physician Assistant · Brighton, MA
William Griffiths, PA-C is a medical physician assistant with a practice address in Brighton, Massachusetts, and NPI 1841977683, issued on Jul 3, 2023. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Griffiths
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 495 Western Ave, Brighton, MA 02135
- Phone
- (617) 783-0500
- Enumerated
- Jul 3, 2023
- Record last updated
- Apr 10, 2026
- Fax
- (617) 562-1398
- Medicare enrollment
- Enrolled (PECOS I20240104002265); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 886 in Massachusetts → Look up another NPI →
Also registered at 495 Western Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Arroyo, LDOOptician1558927624
- Hilary Baker, ODOptometrist1225413198
- Ana Monica Batkis-Odonnell, LMHCMental Health Counselor1447672761
Verify William Griffiths in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average medical physician assistant in 2024
100 Medicare Part D claims for 28 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of 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: $28.96
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 16,165 providers of this specialty with any payment received $1,055.00 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
- Emerson Practice Associates, IncConcord, MA
- Mill City Medical Group LtdLowell, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Griffiths among 886 medical physician assistant records in Massachusetts
William Griffiths, PA-C is one of 886 medical 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 2023, is newer than 90% of them.
- NPI issued2023 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2023 · median 2015 among the 559 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Massachusetts
There are 886 medical physician assistant records in Massachusetts.
All 886 in Massachusetts → Every provider in Brighton → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- James Armstrong, P.A.Boston, MA 021351568645182
- Erica Balfour, PA-C, MSBoston, MA 021351467694067
- Kamryn Belardine, PA-CBrighton, MA 021351790569267
- Cristina Colanti, PA-CBrighton, MA 021351346421450
- Michelle Hopkins, PA-CBrighton, MA 021351366513574
- Constantina Kostka, PABrighton, MA 021351326596396
- Lindsay Stanley, PABrighton, MA 021351083902811
- Elizabeth Collins, PA-CHyde Park, MA 021361942159520
Common questions
What is William Griffiths, PA-C's NPI number?
William Griffiths, PA-C's National Provider Identifier (NPI) is 1841977683, issued on Jul 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is William Griffiths, PA-C located?
The NPPES record lists a practice address at 495 Western Ave, Brighton, MA, 02135. Phone: (617) 783-0500. Providers update this record themselves, so call before visiting.
How can I verify William Griffiths, PA-C's license?
Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does William Griffiths, PA-C prescribe under Medicare Part D?
In 2024, William Griffiths, PA-C had 100 Medicare Part D claims for 28 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.