Michael Brenner, M.D.
Emergency Medicine Physician · Oconto, WI
Michael Brenner, M.D. is an emergency medicine physician with a practice address in Oconto, Wisconsin, and NPI 1659781441, issued on May 1, 2014. Check the license (Wisconsin 64491-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael Brenner
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 64491-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 820 Arbutus Ave, Oconto, WI 54153
- Phone
- (920) 835-1100
- Enumerated
- May 1, 2014
- Entity
- Type 1 · individual
Also registered at 820 Arbutus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsey Baade, APNPFamily Nurse Practitioner1043599194
- Jac Clement, PA-CPhysician Assistant1649289778
- Mark Dittloff, MS, LPCProfessional Counselor1194965590
- Lori Eklund Walsh, LCSW,LPC,SACAddiction (Substance Use Disorder) Counselor1457425951
- Kirstin Filkey, RDHDental Hygienist1063739001
- Charles Heyka, MDGeriatric Medicine (Family Medicine) Physician1083721286
Verify Michael Brenner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 64491-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
50% fewer Medicare Part D claims than the average emergency medicine physician in 2024
178 Medicare Part D claims for 127 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Cephalexin17 claims
- Prednisone16 claims
- Ondansetron Odt15 claims
- Amoxicillin-Clavulanate Potass13 claims
- Ciprofloxacin Hcl13 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.
2 hospital and facility affiliations
- Bellin Memorial Hospital IncGreen Bay, WI
- Oconto Hospital And Medical Center IncOconto, WI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
1 emergency medicine physician records list a Oconto practice address
They are 1 of the 76 NPPES records with a Oconto practice address, and 1,420 emergency medicine physician records in Wisconsin.
Other emergency medicine physician records in Wisconsin
- Hythem Abad, DOPortage, WI1548799455
- Alan Abdulla, D.O.Waukesha, WI1508164419
- Krystyna Abdulla, DONew Berlin, WI1205146578
- Abdulmoniem Abdulmoniem, M.D.Elkhorn, WI1194175042
- Justine Abel, DOEau Claire, WI1861830507
- Denise Abernethy, M.D.Oak Creek, WI1376718650
- Michael Abernethy, MDMadison, WI1013972579
- Meinkeng Acha-Morfaw, MDMadison, WI1467934836
- Manish Acharya, M.D.Milwaukee, WI1437129715
- Axel AdamsMadison, WI1366905192
Common questions
What is Michael Brenner, M.D.'s NPI number?
Michael Brenner, M.D.'s National Provider Identifier (NPI) is 1659781441, issued on May 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Michael Brenner, M.D. located?
The NPPES record lists a practice address at 820 Arbutus Ave, Oconto, WI, 54153. Phone: (920) 835-1100. Providers update this record themselves, so call before visiting.
How can I verify Michael Brenner, M.D.'s license?
NPPES lists Wisconsin license number 64491-20, 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 Michael Brenner, M.D. prescribe under Medicare Part D?
In 2024, Michael Brenner, M.D. had 178 Medicare Part D claims for 127 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.