Doctor profile · Federal record
Dr. Katherine Winiarczyk, MD
Internal Medicine Physician (CMS: Internal Medicine) · Ladysmith, WI
- NPI 1841670726
- Accepts Medicare
- MIPS 76.2 / 100 · 2023
- 11 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1200 Port Arthur RD
Ladysmith, WI 548481137
(715) 532-2300 - Additional location
-
1001 E 11Th St N
Ladysmith, WI 548481455
(715) 532-5546
fax (715) 532-0296 - Mailing address
-
1000 N Oak Ave
Marshfield, WI 544495703
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- September 22, 2025
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #66082-20
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1841670726. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$24
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk Inc | 1 | $24.26 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,126
Patients
869
Total drug cost
$243,718
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lisinopril | Generic | 410 | 98 | $4,336 |
| Levothyroxine Sodium | Generic | 387 | 80 | $5,627 |
| Atorvastatin Calcium | Generic | 356 | 82 | $5,452 |
| Gabapentin | Generic | 354 | 65 | $7,488 |
| Losartan Potassium | Generic | 295 | 60 | $4,527 |
| Amlodipine Besylate | Generic | 286 | 70 | $3,534 |
| Furosemide | Generic | 286 | 62 | $2,164 |
| Warfarin Sodium | Generic | 269 | 35 | $2,968 |
| Omeprazole | Generic | 246 | 60 | $4,070 |
| Potassium Chloride | Generic | 239 | 59 | $8,481 |
Hospital affiliations
Frequently asked questions
What is Dr. Katherine Winiarczyk's medical specialty?
Dr. Katherine Winiarczyk practices Internal Medicine Physician in Ladysmith, WI.
Where does Dr. Katherine Winiarczyk practice?
Dr. Katherine Winiarczyk practices at 1200 Port Arthur RD, Ladysmith, WI 548481137. Office phone: 7155322300.
What is Dr. Katherine Winiarczyk's NPI?
Dr. Katherine Winiarczyk's National Provider Identifier (NPI) is 1841670726, issued by NPPES.
Does Dr. Katherine Winiarczyk accept Medicare assignment?
Yes. Dr. Katherine Winiarczyk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.