Karmen Wielunski, D.O.
Internal Medicine Physician · La Crosse, WI
Karmen Wielunski, D.O. is an internal medicine physician with a practice address in La Crosse, Wisconsin, and NPI 1750700738, issued on Apr 7, 2014. Check the license (Wisconsin 65399, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karmen Wielunski
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 65399 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1836 South Ave, La Crosse, WI 54601
- Phone
- (608) 782-7300
- Enumerated
- Apr 7, 2014
- Record last updated
- May 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20171114003694); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 1836 South Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Aberger, MDGastroenterology Physician1396748711
- Bradley Abicht, DPMPodiatrist1962632166
- Carter Abicht, DOAnesthesiology Physician1932736642
- Grace AbichtCertified Registered Nurse Anesthetist1003651555
- Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
- Mateen Abidi, M.DCardiovascular Disease Physician1730333980
Verify Karmen Wielunski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 65399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
114 Medicare Part D claims for 59 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Gundersen Lutheran Medical Center IncLa Crosse, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karmen Wielunski among 2,078 internal medicine physician records in Wisconsin
Karmen Wielunski, D.O. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 72% of them.
- NPI issued2014 · 72% of these records are older, 27% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2014 · median 2002 among the 1,098 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
110 internal medicine physician records list a practice address in La Crosse
They are 110 of the 3,735 NPPES records with a practice address in La Crosse, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in La Crosse → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christine Miller, MDLa Crosse, WI 546011366445934
- David Momont, MDLa Crosse, WI 546011649272964
- Sheila Momont, MDLa Crosse, WI 546011285636506
- Brian Mulrennan, MDLa Crosse, WI 546011073515391
- David Norenberg, MDLa Crosse, WI 546011235131517
- Steven Pearson, MDLa Crosse, WI 546011356343693
- Joan Romeyn, MDLa Crosse, WI 546011588667174
- Amanda Strosahl, MDLa Crosse, WI 546011063416857
Common questions
What is Karmen Wielunski, D.O.'s NPI number?
Karmen Wielunski, D.O.'s National Provider Identifier (NPI) is 1750700738, issued on Apr 7, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Karmen Wielunski, D.O. located?
The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.
How can I verify Karmen Wielunski, D.O.'s license?
NPPES lists Wisconsin license number 65399, 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 Karmen Wielunski, D.O. prescribe under Medicare Part D?
In 2024, Karmen Wielunski, D.O. had 114 Medicare Part D claims for 59 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karmen Wielunski, D.O.'s MIPS final score?
The 2023 MIPS final score is 83.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.