Maryellen Cleary Antkowiak, M.D.
Internal Medicine Physician · Burlington, VT
Maryellen Cleary Antkowiak, M.D. is an internal medicine physician with a practice address in Burlington, Vermont, and NPI 1588836043, issued on Mar 25, 2008. Check the license (Vermont 042-0012284, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Maryellen Cleary Antkowiak
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 042-0012284 VT
Self-reported in NPPES; status is on the state search - Practice location
- 111 Colchester Ave., Burlington, VT 05401
- Phone
- (802) 847-1158
- Enumerated
- Mar 25, 2008
- Record last updated
- Jun 15, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (802) 847-2444
- Medicare enrollment
- Enrolled (PECOS I20111024000177); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 326 in Vermont → Look up another NPI →
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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- Mark Bisanzo, MDEmergency Medicine Physician1740249226
- Stephanie Bless, APRN, FNP-BCPsychiatric/Mental Health Nurse Practitioner1558738781
Verify Maryellen Cleary Antkowiak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVermont Board of Medical Practice
Search for license 042-0012284Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average internal medicine physician in 2024
592 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Ambrisentan65 claims
- Trelegy Ellipta38 claims
- Tadalafil37 claims
- Furosemide34 claims
- Adempas32 claims
- Prednisone31 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).
Maryellen Cleary Antkowiak among 326 internal medicine physician records in Vermont
Maryellen Cleary Antkowiak, M.D. is one of 326 internal medicine physician records with a practice address in Vermont. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 67% of them.
- NPI issued2008 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2008 · median 2007 among the 177 with a school on file
- Record last updated2015 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
105 internal medicine physician records list a practice address in Burlington
They are 105 of the 3,455 NPPES records with a practice address in Burlington, and 326 internal medicine physician records in Vermont.
All 326 in Vermont → Every provider in Burlington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Melissa Brandes, M.D.Burlington, VT 054011265468318
- Beach Conger, MDBurlington, VT 054011023006921
- Rosemary Dale, NPBurlington, VT 054011841220191
- Maj Eisinger, MDBurlington, VT 054011801821012
- Anthony FiorilloBurlington, VT 054011720051816
- Christopher Hebert, MDBurlington, VT 054011801850227
- Naomi Hodde, MDBurlington, VT 054011942270780
- Friederike Keating, MDBurlington, VT 054011457351835
Common questions
What is Maryellen Cleary Antkowiak, M.D.'s NPI number?
Maryellen Cleary Antkowiak, M.D.'s National Provider Identifier (NPI) is 1588836043, issued on Mar 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Maryellen Cleary Antkowiak, M.D. located?
The NPPES record lists a practice address at 111 Colchester Ave., Burlington, VT, 05401. Phone: (802) 847-1158. Providers update this record themselves, so call before visiting.
How can I verify Maryellen Cleary Antkowiak, M.D.'s license?
NPPES lists Vermont license number 042-0012284, 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 Maryellen Cleary Antkowiak, M.D. prescribe under Medicare Part D?
In 2024, Maryellen Cleary Antkowiak, M.D. had 592 Medicare Part D claims for 57 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.