Tezo A. Karedan, MD
NPI 1679887376ActiveIndividual· Internal Medicine, Medical Oncology· La Crosse, WI
Internal Medicine, Medical Oncology (MD) with Mayo Clinic Health System-Southwest Wisconsin Region Inc, practicing in La Crosse, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $2,330,210 for 1,312 claims, against $76,026 paid for services in 2024. Eisai Inc. was the largest of 2 companies reporting payments in 2025, $169.70 in all, mostly education. Lists Mayo Clinic Health System Eau Claire Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1679887376 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 5, 2010 |
| Last updated in NPPES | Jun 21, 2023 |
| Certified by provider | Jun 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 81906 | WI |
| Internal Medicine | 207R00000X | 4301097275 | MI |
| Internal Medicine, Hematology & Oncology | 207RH0003X | M-14790 | ID |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 2016011679 | MO |
| Internal Medicine, Medical Oncology | 207RX0202X | 100435 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 317 |
|---|---|
| Services billed | 1,406 across 14 procedure codes |
| Paid by Medicare | $76,026 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,312 · 1,560 30-day fills |
|---|---|
| Patients | 212 |
| Total drug cost | $2,330,210 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Mayo Clinic Health System-Southwest Wisconsin Region IncLa Crosse, WI · 534 clinicians
Hospital affiliations
- Mayo Clinic Health System Eau Claire HospitalEau Claire, WI
- Mayo Clinic Health System-Franciscan Medical Center IncLa Crosse, WI
- Mayo Clinic Hlth Systm Franciscan Hlthcare SpartaSparta, WI
- Veterans Memorial HospitalWaukon, IA
- WinnmedDecorah, IA
Industry payments (Open Payments)
- 2025$169.70 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eisai Inc. | $135.50 | 2 |
| Abbvie Inc. | $34.20 | 1 |
What the 2025 payments were for
- Education$135.50 · 2 payments
- Food and Beverage$34.20 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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