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DR. KARMEN WIELUNSKI D.O.
NPI 1750700738
Internal Medicine in La Crosse, WI

Active since April 07, 2014PECOS EnrolledAccepts Medicare Assignment
83.32/100
CMS Quality Rating
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: May 15, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 15, 2024, Jul 21, 2022, Jun 20, 2017 (3 updates tracked since 2017).

About Dr. Karmen Wielunski D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KARMEN WIELUNSKI D.O. (NPI 1750700738) is an individual internal medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (65399) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Gundersen Palmer Lutheran Hospital And Clinics, and maintains a secondary practice location in Milwaukee.

NPPES Registry Identity

NPI1750700738
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KARMEN WIELUNSKICredential: D.O.
Location Address1836 SOUTH AVELa Crosse, WI 54601-5429
Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300
Phone(608) 782-7300
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 2014
Enumeration DateApril 7, 2014
Last NPPES UpdateMay 15, 20243 updates tracked since enumeration
NPPES CertifiedMay 15, 2024
✔ NPI 1750700738 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 65399
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1836 SOUTH AVE, La Crosse, WI 54601
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Other Names 1

Former Name (1)Dr. Karmen Bergquist Do

Secondary Practice Location 1

Location 19200 W Wisconsin AveMilwaukee, WI 53226-3522 · Phone (414) 805-6850 · Fax (414) 805-6851

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karmen Wielunski D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961768528
PECOS Enrollment IDI20171114003694
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show Karmen Wielunski reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gundersen Lutheran Medical Center, Inc
Same address
Clinic/Center
710 DENTON ST
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,457 clinicians in this Medicare group
NPI 1619210895 (608) 782-7300
Tri-County Memorial Hospital, Inc.
39 mi
Critical Access
18601 LINCOLN ST
Whitehall, WI 54773
  • Reassigned Medicare billing, Wisconsin enrollment
  • 71 clinicians in this Medicare group
NPI 1124063573 (715) 538-4361
St. Joseph's Health Services, Inc.
46 mi
Critical Access
400 WATER AVE
Hillsboro, WI 54634
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: St Josephs Health Services Inc
  • 75 clinicians in this Medicare group
NPI 1972591410 (608) 489-8000
Memorial Hospital Of Boscobel
53 mi
Critical Access
205 PARKER ST
Boscobel, WI 53805
  • Reassigned Medicare billing, Wisconsin enrollment
  • 76 clinicians in this Medicare group
NPI 1760459846 (608) 375-4112
Moundview Memorial Hospital & Clinics, Inc
73 mi
Critical Access
402 W LAKE ST
Friendship, WI 53934
  • Reassigned Medicare billing, Wisconsin enrollment
  • 67 clinicians in this Medicare group
NPI 1710939533 (608) 339-3331
The Medical College Of Wisconsin, Inc.
170 mi
Internal Medicine
8701 WATERTOWN PLANK RD
Milwaukee, WI 53226
  • Reassigned Medicare billing, Wisconsin enrollment
  • 3,983 clinicians in this Medicare group
NPI 1699720086 (414) 955-7101

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
79 services35 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
31 services31 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
27 services16 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
20 services20 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services16 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
13 services13 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Gundersen Palmer Lutheran Hospital And Clinics

Critical Access Hospitals · West Union, IA
OwnershipVoluntary non-profit - Private
CMS Certification Number161316
Location112 Jefferson StreetWest Union, IA 52175 · Fayette County
Emergency services

Gundersen St Josephs Hospital And Clinics

Critical Access Hospitals · Hillsboro, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521304
Location400 Water AveHillsboro, WI 54634 · Vernon County
Emergency services

Gundersen Moundview Hospital And Clinics

Critical Access Hospitals · Friendship, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521309
Location402 W Lake StFriendship, WI 53934 · Adams County
Emergency services

Gundersen Tri-County Hospital & Clinics

Critical Access Hospitals · Whitehall, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521316
Location18601 Lincoln StWhitehall, WI 54773 · Trempealeau County
Emergency services

Gundersen Boscobel Area Hospital And Clinics

Critical Access Hospitals · Boscobel, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521344
Location205 Parker StBoscobel, WI 53805 · Grant County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.32/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.51
Promoting Interoperability100
Improvement Activities40
Cost64.88

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
4 suppliers17 claims17 services$17.76 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers20 claims20 services$95.29 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEFFREY BRIAN TROHKIMOINEN M.D.
Anesthesiology
1836 SOUTH AVE, GUNDERSEN CLINIC, LTD.
LA CROSSE, WI 54601
La Crosse County (608) 775-2031
JESSICA E THESING CRNA
Nurse Anesthetist, Certified Registered
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
DR. MICHAEL DAVID SMITH PSY.D.
Psychologist
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JESSICA MAE RASMUSSEN
Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JULIE SONSALLA NP
Nurse Practitioner (Adult Health)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
LAURA KLINGBEIL
Orthopaedic Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
SUSAN CAROL SORRENTINO RN
Registered Nurse (Addiction (Substance Use Disorder))
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
NAOMI MUTHONI RUIRU NP
Nurse Practitioner (Family)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karmen Wielunski's NPI number?

The NPI number for Karmen Wielunski is 1750700738. It was assigned to this individual provider in the NPPES registry on April 7, 2014. The provider is also known as Dr. Karmen Bergquist Do.

Where is Karmen Wielunski located?

Karmen Wielunski practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.

What is Karmen Wielunski's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karmen Wielunski enrolled in Medicare?

Yes. Karmen Wielunski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karmen Wielunski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karmen Wielunski reassigns Medicare benefits to 6 organizations: Gundersen Lutheran Medical Center, Inc (La Crosse, WI), Tri-County Memorial Hospital, Inc. (Whitehall, WI), St. Joseph's Health Services, Inc. (Hillsboro, WI), Memorial Hospital Of Boscobel (Boscobel, WI), Moundview Memorial Hospital & Clinics, Inc (Friendship, WI) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karmen Wielunski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Karmen Wielunski affiliated with any hospitals?

According to CMS data, Karmen Wielunski is affiliated with Gundersen Palmer Lutheran Hospital And Clinics, Gundersen St Josephs Hospital And Clinics, Gundersen Moundview Hospital And Clinics, Gundersen Tri-County Hospital & Clinics and Gundersen Boscobel Area Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Karmen Wielunski was last updated on May 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.