William J. Fischer, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Milwaukee, WI
William J. Fischer, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Milwaukee, Wisconsin, and NPI 1982920344, issued on Apr 9, 2010. Check the license (Wisconsin 69157, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William J. Fischer
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 69157 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2901 W Kinnickinnic River Pkwy Ste 507, Milwaukee, WI 53215
- Phone
- (414) 649-3780
- Enumerated
- Apr 9, 2010
- Record last updated
- Mar 12, 2024
- Medicaid ID
- 100076268 WI
- Medicare enrollment
- Enrolled (PECOS I20180611001507); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2010
- Entity
- Type 1 · individual
Also registered at 2901 W Kinnickinnic River Pkwy Ste 507
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jackie Budynek, RN, APNPNurse Practitioner1619153384
- Yuting ChiangThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1760879977
- Andrei Churyla, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1215102322
- Scott Johnson, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1821438375
- Amanda Mueller, PA-CPhysician Assistant1003129701
- Emily Novicki, PA-CPhysician Assistant1639699457
Verify William J. Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 69157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
132 Medicare Part D claims for 62 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin25 claims
- Doxycycline Hyclate16 claims
- Atorvastatin Calcium12 claims
- Furosemide12 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.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Wisconsin
There are 115 thoracic surgery (cardiothoracic vascular surgery) physician records in Wisconsin.
Other thoracic surgery (cardiothoracic vascular surgery) physician records in Wisconsin
- Zenoun Abouzelam, MDAppleton, WI1699769695
- Khosro Adib, MDMadison, WI1932163581
- Ahmed Ali, M.D.Milwaukee, WI1558647677
- Hossein Almassi, MDMilwaukee, WI1255382768
- Andrea Axtell, MDMadison, WI1437562584
- James Bailey, MDGreen Bay, WI1962936245
- Thomas Barragry, M.D.Mequon, WI1659350643
- John Braxton, M.D.Weston, WI1073568655
- Jerold Brenowitz, MDMilwaukee, WI1639144595
- Thomas Cain, MDMarshfield, WI1922011071
Common questions
What is William J. Fischer, M.D.'s NPI number?
William J. Fischer, M.D.'s National Provider Identifier (NPI) is 1982920344, issued on Apr 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is William J. Fischer, M.D. located?
The NPPES record lists a practice address at 2901 W Kinnickinnic River Pkwy Ste 507, Milwaukee, WI, 53215. Phone: (414) 649-3780. Providers update this record themselves, so call before visiting.
How can I verify William J. Fischer, M.D.'s license?
NPPES lists Wisconsin license number 69157, 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 William J. Fischer, M.D. prescribe under Medicare Part D?
In 2024, William J. Fischer, M.D. had 132 Medicare Part D claims for 62 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.