James M. Armstrong, P.A.
Medical Physician Assistant · Boston, MA
James M. Armstrong, P.A. is a medical physician assistant with a practice address in Boston, Massachusetts, and NPI 1568645182, issued on Dec 6, 2007. Check the license (Massachusetts 505, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James M. Armstrong
- Credential
- P.A.
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- 505 MA
055.0031207 VT
Self-reported in NPPES; status is on the state search - Practice location
- 736 Cambridge Street, Boston, MA 02135
- Phone
- (617) 562-7868
- Enumerated
- Dec 6, 2007
- Record last updated
- Jun 6, 2023
- Fax
- (617) 779-6330
- Medicare enrollment
- Enrolled (PECOS I20210604001403); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 886 in Massachusetts → Look up another NPI →
Also registered at 736 Cambridge Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pia Gabrielle Alfonso, M.D.Internal Medicine Physician1356035737
- Luca Bigatello, MDAnesthesiology Physician1003890419
- Brian Engles, M.D.Anesthesiology Physician1811163751
- Adnan Ezici, MDStudent in an Organized Health Care Education/Training Program1821781915
- Giorgi Goletiani, M.D.Internal Medicine Physician1184415416
- Zena HaddadinStudent in an Organized Health Care Education/Training Program1659218899
Verify James M. Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 505Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average medical physician assistant in 2024
1,640 Medicare Part D claims for 318 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Metoprolol Succinate216 claims
- Eliquis179 claims
- Xarelto87 claims
- Diltiazem 24hr Er (Cd)77 claims
- Metoprolol Tartrate71 claims
- Atorvastatin Calcium69 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: $56.47
3 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. 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 one group practice
- Mymichigan Medical Center SaultSault Sainte Marie, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James M. Armstrong among 886 medical physician assistant records in Massachusetts
James M. Armstrong, P.A. 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 2007, is newer than 22% of them.
- NPI issued2007 · 22% of these records are older, 69% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1992 · median 2015 among the 559 with a school on file
- Record last updated2023 · 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 Boston → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Erica Balfour, PA-C, MSBoston, MA 021351467694067
- Kamryn Belardine, PA-CBrighton, MA 021351790569267
- Cristina Colanti, PA-CBrighton, MA 021351346421450
- William Griffiths, PA-CBrighton, MA 021351841977683
- 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 James M. Armstrong, P.A.'s NPI number?
James M. Armstrong, P.A.'s National Provider Identifier (NPI) is 1568645182, issued on Dec 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James M. Armstrong, P.A. located?
The NPPES record lists a practice address at 736 Cambridge Street, Boston, MA, 02135. Phone: (617) 562-7868. Providers update this record themselves, so call before visiting.
How can I verify James M. Armstrong, P.A.'s license?
NPPES lists Massachusetts license number 505, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does James M. Armstrong, P.A. prescribe under Medicare Part D?
In 2024, James M. Armstrong, P.A. had 1,640 Medicare Part D claims for 318 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.