Michelle Kosmalski, MD
Family Medicine Physician · West Allis, WI
Michelle Kosmalski, MD is a family medicine physician with a practice address in West Allis, Wisconsin, and NPI 1427491992, issued on Apr 15, 2013. Check the license (Wisconsin 65568-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michelle Kosmalski
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 65568-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 6609 W Greenfield Ave, West Allis, WI 53214
- Phone
- (414) 257-8577
- Enumerated
- Apr 15, 2013
- Record last updated
- Apr 3, 2025
- Fax
- (414) 257-8505
- Medicaid ID
- 100059243 WI
- Medicare enrollment
- Enrolled (PECOS I20160818001746); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 6609 W Greenfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stacie Binter, NPNurse Practitioner1467918375
- Krystal Buttitta, PA-CPhysician Assistant1417638362
- Mary Dunkin, MDFamily Medicine Physician1679070700
- Paul Facchiano, NPNurse Practitioner1023897998
- Zhengqi Fan, DNP, APNP, FNP-CNurse Practitioner1306443460
Verify Michelle Kosmalski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 65568-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
109 Medicare Part D claims for 16 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium14 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 3 group practices
- Aurora Advanced Healthcare, Inc.Milwaukee, WI
- Aurora Medical Group, Inc.West Allis, WI
- Lakeshore Medical Clinic LLCOak Creek, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michelle Kosmalski among 3,765 family medicine physician records in Wisconsin
Michelle Kosmalski, MD 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · median 2007 among the 2,347 with a school on file
- Record last updated2025 · 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).
51 family medicine physician records list a practice address in West Allis
They are 51 of the 1,362 NPPES records with a practice address in West Allis, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in West Allis → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Renato Azcueta, MDWest Allis, WI 532141346258902
- Alice Bustos, MDWest Allis, WI 532141861440505
- Joseph Cronin, DOWest Allis, WI 532141164431219
- Mamatha Geddam, MDWest Allis, WI 532141770660300
- Patricia Hago, M.D.West Allis, WI 532141770589202
- Michele Hall, MDWest Allis, WI 532141942305115
- R. Kevin Kennelly, P.A.West Allis, WI 532141780651604
- Cynthia Mason, M.D.West Allis, WI 532141295702140
Common questions
What is Michelle Kosmalski, MD's NPI number?
Michelle Kosmalski, MD's National Provider Identifier (NPI) is 1427491992, issued on Apr 15, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Michelle Kosmalski, MD located?
The NPPES record lists a practice address at 6609 W Greenfield Ave, West Allis, WI, 53214. Phone: (414) 257-8577. Providers update this record themselves, so call before visiting.
How can I verify Michelle Kosmalski, MD's license?
NPPES lists Wisconsin license number 65568-20, 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 Michelle Kosmalski, MD prescribe under Medicare Part D?
In 2024, Michelle Kosmalski, MD had 109 Medicare Part D claims for 16 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.