NPPES file of Aug 9, 2026

Jillian Leigh Brennan, M.D.

Hospitalist Physician · Burlington, VT

Jillian Leigh Brennan, M.D. is a hospitalist physician with a practice address in Burlington, Vermont, and NPI 1942520796, issued on Jun 3, 2010. Check the license (Vermont 042.0012666, 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
1942520796
Name
Jillian Leigh Brennan
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
042.0012666 VT
0420012666 VT
Self-reported in NPPES; status is on the state search
Practice location
617 Riverside Ave, Burlington, VT 05401
Phone
(802) 264-8158
Enumerated
Jun 3, 2010
Record last updated
Apr 16, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(802) 860-4313
Medicaid ID
1022382 VT
Medicare enrollment
Enrolled (PECOS I20131223000120); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 2010
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 617 Riverside Ave

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

  1. Samantha Aguirre, D.D.S.Public Health Dentistry1013466630
  2. Lisa Anderson, LICSWClinical Social Worker1487676466
  3. Natalie Antosh, MDFamily Medicine Physician1437778685
  4. Benjamin Baker, PAPhysician Assistant1134533128
  5. Brandon Benton, MSN, APRN, FNP-BCFamily Nurse Practitioner1336832971
  6. Melanie Biegler, DOFamily Medicine Physician1942838131

Verify Jillian Leigh Brennan 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 042.0012666
    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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86% fewer Medicare Part D claims than the average hospitalist physician in 2024

74 Medicare Part D claims for 44 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Jillian Brennan74
  2. Specialty average521

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.

One hospital affiliation

  1. Porter Hospital IncMiddlebury, VT · Critical Access Hospitals3 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Jillian Leigh Brennan among 31 hospitalist physician records in Vermont

Jillian Leigh Brennan, M.D. is one of 31 hospitalist physician records with a practice address in Vermont. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 48% of them.

  • NPI issued2010 · 48% of these records are older, 39% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2010 · median 2010 among the 24 with a school on file
  • Record last updated2015 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Vermont

There are 31 hospitalist physician records in Vermont.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Jason Bartsch, M.D.Burlington, VT 054011093030801
  2. Jennifer BorofskyBurlington, VT 054011558685354
  3. George Cao, MDBurlington, VT 054011942882329
  4. Benjamin Depo, MDBurlington, VT 054011093219461
  5. Caleb Doyle-BurrBurlington, VT 054011982081493
  6. Julie Ehrlich, MDBurlington, VT 054011790488484
  7. Caitlin Greenberg, DOBurlington, VT 054011538553029
  8. Kara Landry, MDBurlington, VT 054011225422462

Common questions

What is Jillian Leigh Brennan, M.D.'s NPI number?

Jillian Leigh Brennan, M.D.'s National Provider Identifier (NPI) is 1942520796, issued on Jun 3, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Jillian Leigh Brennan, M.D. located?

The NPPES record lists a practice address at 617 Riverside Ave, Burlington, VT, 05401. Phone: (802) 264-8158. Providers update this record themselves, so call before visiting.

How can I verify Jillian Leigh Brennan, M.D.'s license?

NPPES lists Vermont license number 042.0012666, 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 Jillian Leigh Brennan, M.D. prescribe under Medicare Part D?

In 2024, Jillian Leigh Brennan, M.D. had 74 Medicare Part D claims for 44 beneficiaries; the average among hospitalist physician prescribers was 521. 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.