Mahmoud Nassar, MD
Endocrinology, Diabetes & Metabolism Physician · Burlington, VT
Mahmoud Nassar, MD is an endocrinology, diabetes & metabolism physician with a practice address in Burlington, Vermont, and NPI 1548882137, issued on May 18, 2020. Check the license (Vermont 042.0018335, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Mahmoud Nassar
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 042.0018335 VT
334582 NY
334582-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 111 Colchester Ave, Burlington, VT 05401
- Phone
- (802) 847-0000
- Enumerated
- May 18, 2020
- Entity
- Type 1 · individual
Also registered at 111 Colchester Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rachel Adelsheim, MDStudent in an Organized Health Care Education/Training Program1700589637
- Steven Ades, MDHematology & Oncology Physician1972796167
Verify Mahmoud Nassar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVermont Board of Medical Practice
Search for license 042.0018335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
84% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
431 Medicare Part D claims for 115 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Levothyroxine Sodium50 claims
- Atorvastatin Calcium33 claims
- Ozempic32 claims
- Trulicity31 claims
- Humalog Kwikpen U-10026 claims
- Lantus Solostar24 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.
Bills Medicare through one group practice
- University OF Vermont Medical Center IncBurlington, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Vermont
There are 19 endocrinology, diabetes & metabolism physician records in Vermont.
Other endocrinology, diabetes & metabolism physician records in Vermont
- Andrew Bauman, M.D.White River Junction, VT1689778110
- Christina Bordeau, D.O.Burlington, VT1750605259
- Rose Christian, MDBurlington, VT1891773073
- Margaret Daly, M.D.Rutland, VT1518911650
- David Felske, MDBerlin, VT1801448212
- Matthew Gilbert, DO, MPHSouth Burlington, VT1073634531
- John Glick, M.D.Brattleboro, VT1821029166
- David Gorson, MDBennington, VT1194773200
- Tina Kader, MDCMBurlington, VT1184179103
- Jennifer Kelly, DOSouth Burlington, VT1104867779
Common questions
What is Mahmoud Nassar, MD's NPI number?
Mahmoud Nassar, MD's National Provider Identifier (NPI) is 1548882137, issued on May 18, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mahmoud Nassar, MD located?
The NPPES record lists a practice address at 111 Colchester Ave, Burlington, VT, 05401. Phone: (802) 847-0000. Providers update this record themselves, so call before visiting.
How can I verify Mahmoud Nassar, MD's license?
NPPES lists Vermont license number 042.0018335, as entered by the provider. Search the Vermont Board of Medical Practice at https://www.healthvermont.gov/systems/board-medical-practice. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mahmoud Nassar, MD prescribe under Medicare Part D?
In 2024, Mahmoud Nassar, MD had 431 Medicare Part D claims for 115 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), loaded Aug 27, 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) 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 27, 2026.