KATHERINE SUZANNE WINIARCZYK MD
NPI 1841670726
Internal Medicine in Ladysmith, WI

Q: What is Katherine Winiarczyk's NPI number?

The NPI number for Katherine Winiarczyk is 1841670726. It was assigned to this individual provider in the NPPES registry on June 4, 2015.

Q: What is Katherine Winiarczyk's specialty?

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

Active since June 04, 2015PECOS EnrolledAccepts Medicare Assignment

78.85/100

CMS Quality Rating

1200 PORT ARTHUR RD, LADYSMITH, WI 54848(715) 532-2300 Get Directions Write a Review

NPPES record last updated: September 22, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 3, 2025, Oct 16, 2020, Aug 19, 2016 (3 updates tracked since 2016).

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About Katherine Suzanne Winiarczyk Md NPPES

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

KATHERINE SUZANNE WINIARCZYK MD (NPI 1841670726) is an individual internal medicine provider in Ladysmith, Wisconsin, licensed in Wisconsin (66082-20) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center - Rice Lake, and maintains a secondary practice location in Ladysmith.

NPPES Registry Identity

NPI1841670726

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameKATHERINE SUZANNE WINIARCZYKCredential: MD

Location Address1200 PORT ARTHUR RDLadysmith, WI 54848-1137

Mailing Address1000 N Oak AveMarshfield, WI 54449-5703 · (715) 387-5511

Phone(715) 532-2300

Sole ProprietorYes

Medical School CMSOtherGraduated 2015

Enumeration DateJune 4, 2015

Last NPPES UpdateSeptember 22, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 22, 2025

✔ NPI 1841670726 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 · 66082-20

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.

1200 PORT ARTHUR RD, Ladysmith, WI 54848

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Secondary Practice Location 1

Location 11001 E 11th St NLadysmith, WI 54848-1455 · Phone (715) 532-5546 · Fax (715) 532-0296

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, HealthPartners, Medica and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katherine Suzanne Winiarczyk Md 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 ID7911286216

PECOS Enrollment IDI20190214002252

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.

Hospital Affiliations CMS Care Compare 4

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

Marshfield Medical Center - Rice Lake

Acute Care Hospitals · Rice Lake, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520011

Location1700 West Stout StreetRice Lake, WI 54868 · Barron County

Emergency services Birthing friendly

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520037

Location611 St Joseph AveMarshfield, WI 54449 · Wood County

Emergency services Birthing friendly

Marshfield Medical Center - Eau Claire

Acute Care Hospitals · Eau Claire, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520210

Location2310 Craig RdEau Claire, WI 54701 · Eau Claire County

Emergency services Birthing friendly

Marshfield Medical Center - Ladysmith

Critical Access Hospitals · Ladysmith, WI

OwnershipGovernment - Hospital District or Authority

CMS Certification Number521328

Location1200 Port Arthur RdLadysmith, WI 54848 · Rusk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54848 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.

78.85/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

66.68

Promoting Interoperability

Improvement Activities

Cost

54.87

Referred Medical Equipment & Supplies CMS DME claims 15

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

5 suppliers64 claims212 services$6.05 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

3 suppliers21 claims29 services$0.94 avg. paid by Medicare

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314

DME-Orthotic Devices · category DF000N

2 suppliers35 claims35 services$22.58 avg. paid by Medicare

Urinary catheter anchoring device, adhesive skin attachment, each A4333

DME-Orthotic Devices · category DF000N

2 suppliers35 claims408 services$1.95 avg. paid by Medicare

Urinary catheter anchoring device, leg strap, each A4334

DME-Orthotic Devices · category DF000N

2 suppliers34 claims34 services$4.33 avg. paid by Medicare

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357

DME-Orthotic Devices · category DF000N

2 suppliers35 claims47 services$8.79 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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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.

JESSICA LYNN TAKACH APNP

Nurse Practitioner (Family)