Kathleen A. Brass, M.D., PHD
Family Medicine Physician · Waukesha, WI
Kathleen A. Brass, M.D., PHD is a family medicine physician with a practice address in Waukesha, Wisconsin, and NPI 1083815690, issued on May 30, 2007. Check the license (Wisconsin 52837-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen A. Brass
- Credential
- M.D., PHD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 52837-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2130 Big Bend RD, Waukesha, WI 53189
- Phone
- (262) 928-7555
- Enumerated
- May 30, 2007
- Record last updated
- Jan 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091007000605); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 2130 Big Bend RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen A. Brass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 52837-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average family medicine physician in 2024
3,254 Medicare Part D claims for 332 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 157 claims were for opioids.
Most prescribed
- Atorvastatin Calcium153 claims
- Levothyroxine Sodium147 claims
- Lisinopril120 claims
- Gabapentin107 claims
- Amlodipine Besylate106 claims
- Omeprazole93 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 2 group practices
- Presbyterian Homes OF Wisconsin IncWaukesha, WI
- Prohealth Medical Group IncWaukesha, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen A. Brass among 3,765 family medicine physician records in Wisconsin
Kathleen A. Brass, M.D., PHD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2007 among the 2,347 with a school on file
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
76 family medicine physician records list a practice address in Waukesha
They are 76 of the 2,814 NPPES records with a practice address in Waukesha, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Waukesha → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Caryn Brownell, M.D.Waukesha, WI 531891689647406
- Megan Edwards, MDWaukesha, WI 531891821011933
- Lauren Flewelen, MDWaukesha, WI 531891497989545
- Anne Frea, M.D.Waukesha, WI 531891952593725
- Kathryn Hughes, MDWaukesha, WI 531891437544574
- Steven Klemish, M.D.Waukesha, WI 531891457324279
- Tracy Lewis, M.D.Waukesha, WI 531891184697906
- Donald Nadar, MDWaukesha, WI 531891427165851
Common questions
What is Kathleen A. Brass, M.D., PHD's NPI number?
Kathleen A. Brass, M.D., PHD's National Provider Identifier (NPI) is 1083815690, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen A. Brass, M.D., PHD located?
The NPPES record lists a practice address at 2130 Big Bend RD, Waukesha, WI, 53189. Phone: (262) 928-7555. Providers update this record themselves, so call before visiting.
How can I verify Kathleen A. Brass, M.D., PHD's license?
NPPES lists Wisconsin license number 52837-20, 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 Kathleen A. Brass, M.D., PHD prescribe under Medicare Part D?
In 2024, Kathleen A. Brass, M.D., PHD had 3,254 Medicare Part D claims for 332 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.