NPPES file of Aug 9, 2026

Marc Steven Greenblatt, MD

Medical Oncology Physician · Burlington, VT

Marc Steven Greenblatt, MD is a medical oncology physician with a practice address in Burlington, Vermont, and NPI 1770654550, issued on Nov 13, 2006. Check the license (Vermont 042-0009106, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770654550
Name
Marc Steven Greenblatt
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
042-0009106 VT
Self-reported in NPPES; status is on the state search
Practice location
111 Colchester Ave, Burlington, VT 05401
Phone
(802) 847-8400
Enumerated
Nov 13, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid IDs
01566632 NY
0VN1136 VT
Medicare enrollment
Enrolled (PECOS I20050103000312); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1983
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 111 Colchester Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kevin Abnet, MDAnesthesiology Physician1699742437
  2. Faiz Abu-Jaber, MDInternal Medicine Physician1184201964
  3. Brittney Accavallo, RNNeonatal Nurse Practitioner1083255459
  4. Daniel Ackil, DOEmergency Medicine Physician1033558879
  5. Rachel Adelsheim, MDStudent in an Organized Health Care Education/Training Program1700589637
  6. Steven Ades, MDHematology & Oncology Physician1972796167

Verify Marc Steven Greenblatt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVermont Board of Medical Practice
    Search for license 042-0009106
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Vermont license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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41% fewer Medicare Part D claims than the average medical oncology physician in 2024

416 Medicare Part D claims for 41 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 12 claims were for opioids.

  1. Marc Greenblatt416
  2. Specialty average703

Most prescribed

  1. Eliquis46 claims
  2. Ondansetron Odt44 claims
  3. Creon35 claims
  4. Dexamethasone35 claims
  5. Prochlorperazine Maleate26 claims
  6. Pantoprazole Sodium19 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

  1. 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).

Marc Steven Greenblatt among 16 medical oncology physician records in Vermont

Marc Steven Greenblatt, MD is one of 16 medical oncology physician records with a practice address in Vermont. 81% 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 19% of them.

  • NPI issued2006 · 19% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated1983 · median 2005 among the 13 with a school on file
  • Record last updated2007 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Vermont

There are 16 medical oncology physician records in Vermont.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Asad AnwarBurlington, VT 054011992220933
  2. Alzira Avelino, MDBurlington, VT 054011265991269
  3. Marie Anne Christine Buteau, MDBurlington, VT 054011134615883
  4. Shlomit Ein-Gal, M.D.Burlington, VT 054011033312640
  5. Mansour Gergi, M.DBurlington, VT 054011861843963
  6. James Gerson, MDBurlington, VT 054011336406040
  7. Sarah GillettBurlington, VT 054011538553656
  8. Randall Holcombe, MDBurlington, VT 054011912087073

Common questions

What is Marc Steven Greenblatt, MD's NPI number?

Marc Steven Greenblatt, MD's National Provider Identifier (NPI) is 1770654550, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marc Steven Greenblatt, MD located?

The NPPES record lists a practice address at 111 Colchester Ave, Burlington, VT, 05401. Phone: (802) 847-8400. Providers update this record themselves, so call before visiting.

How can I verify Marc Steven Greenblatt, MD's license?

NPPES lists Vermont license number 042-0009106, 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 Marc Steven Greenblatt, MD prescribe under Medicare Part D?

In 2024, Marc Steven Greenblatt, MD had 416 Medicare Part D claims for 41 beneficiaries; the average among medical oncology physician prescribers was 703. 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.