Mary Patricia Roy, MD
Endocrinology, Diabetes & Metabolism Physician · Northampton, MA
Mary Patricia Roy, MD is an endocrinology, diabetes & metabolism physician with a practice address in Northampton, Massachusetts, and NPI 1295702967, issued on Mar 2, 2006. Check the license (Massachusetts 58173, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mary Patricia Roy
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 58173 MA
Self-reported in NPPES; status is on the state search - Practice location
- 325B King St, Northampton, MA 01060
- Phone
- (413) 586-0611
- Enumerated
- Mar 2, 2006
- Record last updated
- Jul 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (413) 586-4441
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
Also registered at 325B King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Armstrong, M.D.Internal Medicine Physician1881626786
- Maureen Callahan, NPFamily Nurse Practitioner1497633036
- Vilma Carlone, MDEndocrinology, Diabetes & Metabolism Physician1962459339
- Ann Cooper, D.O.Emergency Medicine Physician1265451694
- Kyle Cooper, MDCardiovascular Disease Physician1053313197
- Janet Curley, LICSWClinical Social Worker1376964775
Verify Mary Patricia Roy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 58173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
27 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium11 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.
Mary Patricia Roy among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Mary Patricia Roy, MD is one of 522 endocrinology, diabetes & metabolism physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts
There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.
All 522 in Massachusetts → Every provider in Northampton → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Vilma Carlone, MDNorthampton, MA 010601962459339
- John Nicasio, DONorthampton, MA 010601982803003
- Peter Butler, M.D.Florence, MA 010621871708990
- Alice Abbott, MDLeeds, MA 010531922096205
- Jorge Silva, M.D.Southwick, MA 010771013978030
- Robert Cooper, M.D.Holyoke, MA 010401992739726
- Aysha Khan, MDHolyoke, MA 010401669034187
- Thomas Gartman, M.D.Chicopee, MA 010201861455958
Common questions
What is Mary Patricia Roy, MD's NPI number?
Mary Patricia Roy, MD's National Provider Identifier (NPI) is 1295702967, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Patricia Roy, MD located?
The NPPES record lists a practice address at 325B King St, Northampton, MA, 01060. Phone: (413) 586-0611. Providers update this record themselves, so call before visiting.
How can I verify Mary Patricia Roy, MD's license?
NPPES lists Massachusetts license number 58173, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Patricia Roy, MD prescribe under Medicare Part D?
In 2024, Mary Patricia Roy, MD had 27 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.