Peter A. Massart
Hospitalist Physician · Burlington, WI
Peter A. Massart is a hospitalist physician with a practice address in Burlington, Wisconsin, and NPI 1598828790, issued on Dec 18, 2006. Check the license (Wisconsin 49533, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Peter A. Massart
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 49533 WI
49533-021 WI
Self-reported in NPPES; status is on the state search - Practice location
- 252 Mchenry St, Burlington, WI 53105
- Phone
- (414) 649-6000
- Enumerated
- Dec 18, 2006
- Record last updated
- Apr 17, 2025
- Medicaid ID
- 43549100 WI
- Medicare enrollment
- Enrolled (PECOS I20080613000256); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 252 Mchenry St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Syed Ali, M.D.Hospitalist Physician1952519142
- Michael Baumgartner, MDHospitalist Physician1578124970
- Brooke Beck, FNP-CNurse Practitioner1760837793
- Paras Bhavsar, M.D.Anesthesiology Physician1912252719
- Deanna Boettcher, PTPhysical Therapist1477757482
- Aaron Brown, ACNPNurse Practitioner1831656362
Verify Peter A. Massart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 49533Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average hospitalist physician in 2024
183 Medicare Part D claims for 81 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass14 claims
- Prednisone12 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
- Aurora Medical Group, Inc.Burlington, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter A. Massart among 894 hospitalist physician records in Wisconsin
Peter A. Massart is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 81% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2004 · median 2011 among the 768 with a school on file
- Record last updated2025 · 29% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 hospitalist physician records list a practice address in Burlington
They are 10 of the 464 NPPES records with a practice address in Burlington, and 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Burlington → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Syed Ali, M.D.Burlington, WI 531051952519142
- Michael Baumgartner, MDBurlington, WI 531051578124970
- Aaditya Chandramouli, MDBurlington, WI 531051811493703
- Preethi Donakonda, M.D.Burlington, WI 531051376559161
- Nguyen Ha, M.DBurlington, WI 531051366983686
- Nicholas Otten, MDBurlington, WI 531051013277714
- Arti Patel, DOBurlington, WI 531051255991907
- Sahil Sharma, MDBurlington, WI 531051811282320
Common questions
What is Peter A. Massart's NPI number?
Peter A. Massart's National Provider Identifier (NPI) is 1598828790, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter A. Massart located?
The NPPES record lists a practice address at 252 Mchenry St, Burlington, WI, 53105. Phone: (414) 649-6000. Providers update this record themselves, so call before visiting.
How can I verify Peter A. Massart's license?
NPPES lists Wisconsin license number 49533, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter A. Massart prescribe under Medicare Part D?
In 2024, Peter A. Massart had 183 Medicare Part D claims for 81 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.