Marie B. Demay, MD
Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Marie B. Demay, MD is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1528058153, issued on Oct 25, 2005. Check the license (Massachusetts 60276, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marie B. Demay
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 60276 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-8720
- Enumerated
- Oct 25, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (617) 724-2718
- Medicaid ID
- 3060861 MA
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marie B. Demay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 60276Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
299 Medicare Part D claims for 71 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Alendronate Sodium93 claims
- Levothyroxine Sodium69 claims
- Calcitriol30 claims
- Teriparatide28 claims
- Synthroid22 claims
- Risedronate 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.
Marie B. Demay among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Marie B. Demay, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2026 · 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 Boston → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Joseph Avruch, MDBoston, MA 021141851381941
- Giuseppe Barbesino, MDBoston, MA 021141366432635
- Enrico Cagliero, MDBoston, MA 021141700877347
- William Crowley, MDBoston, MA 021141417947599
- Steven Grinspoon, MDBoston, MA 021141457342099
- Janet Hall, MDBoston, MA 021141548251002
- Anne Klibanski, MDBoston, MA 021141518958164
- Polyxeni Koutkia, MDBoston, MA 021141447240908
Common questions
What is Marie B. Demay, MD's NPI number?
Marie B. Demay, MD's National Provider Identifier (NPI) is 1528058153, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marie B. Demay, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-8720. Providers update this record themselves, so call before visiting.
How can I verify Marie B. Demay, MD's license?
NPPES lists Massachusetts license number 60276, 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 Marie B. Demay, MD prescribe under Medicare Part D?
In 2024, Marie B. Demay, MD had 299 Medicare Part D claims for 71 beneficiaries; 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.