Walter Brummund, M.D.,PHD
Clinical & Laboratory Immunology (Allergy & Immunology) Physician · Wauwatosa, WI
Walter Brummund, M.D.,PHD is a clinical & laboratory immunology (allergy & immunology) physician with a practice address in Wauwatosa, Wisconsin, and NPI 1487708988, issued on Jan 22, 2007. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Walter Brummund
- Credential
- M.D.,PHD
- Primary taxonomy
- Clinical & Laboratory Immunology (Allergy & Immunology) Physician 207KI0005X
- Practice location
- 2500 N Mayfair RD, Wauwatosa, WI 53226
- Phone
- (414) 475-9101
- Enumerated
- Jan 22, 2007
- Record last updated
- Sep 11, 2025
- Fax
- (414) 475-9203
- Medicaid ID
- 30667400 WI
- Entity
- Type 1 · individual
1 nearest clinical & laboratory immunology (allergy & immunology) physician record → All 2 in Wisconsin → Look up another NPI →
Also registered at 2500 N Mayfair RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Walter Brummund in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average clinical & laboratory immunology (allergy & immunology) physician in 2024
837 Medicare Part D claims for 185 beneficiaries, against an average of 678 among the 35 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Albuterol Sulfate Hfa108 claims
- Montelukast Sodium105 claims
- Fluticasone Propionate63 claims
- Trelegy Ellipta59 claims
- Prednisone36 claims
- Advair Hfa30 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.
Industry payments in 2024: $94.66
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 33 providers of this specialty with any payment received $3,436.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Clinical & Laboratory Immunology (Allergy & Immunology) Physician providers in Wisconsin
There are 2 clinical & laboratory immunology (allergy & immunology) physician records in Wisconsin.
All 2 in Wisconsin → Every provider in Wauwatosa → Clinical & Laboratory Immunology (Allergy & Immunology) Physician nationwide →
The 1 clinical & laboratory immunology (allergy & immunology) physician record with the nearest ZIP codes
- Demetrios Theodoropoulos, M.D.Onalaska, WI 546501326299488
Common questions
What is Walter Brummund, M.D.,PHD's NPI number?
Walter Brummund, M.D.,PHD's National Provider Identifier (NPI) is 1487708988, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Walter Brummund, M.D.,PHD located?
The NPPES record lists a practice address at 2500 N Mayfair RD, Wauwatosa, WI, 53226. Phone: (414) 475-9101. Providers update this record themselves, so call before visiting.
How can I verify Walter Brummund, M.D.,PHD's license?
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 Walter Brummund, M.D.,PHD prescribe under Medicare Part D?
In 2024, Walter Brummund, M.D.,PHD had 837 Medicare Part D claims for 185 beneficiaries; the average among clinical & laboratory immunology (allergy & immunology) physician prescribers was 678. 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.