Leah L. Dietrich, MD
NPI 1578568762ActiveIndividual· Internal Medicine, Medical Oncology· La Crosse, WI
Internal Medicine, Medical Oncology (MD) in La Crosse, Wisconsin, trained at University of Minnesota Medical School (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $402,003 for 692 claims, against $16,767 paid for services in 2024.
Overview
| NPI | 1578568762 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2005 |
| Last updated in NPPES | Jun 2, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 37982 | 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 | 128 |
|---|---|
| Services billed | 332 across 13 procedure codes |
| Paid by Medicare | $16,767 |
Part D prescriptions in 2024
| Prescriptions (claims) | 692 · 1,595 30-day fills |
|---|---|
| Patients | 188 |
| Total drug cost | $402,003 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
Medical groups
- Gundersen Lutheran Medical Center IncLa Crosse, WI · 895 clinicians
- Gundersen Clinic LtdOnalaska, WI · 418 clinicians
Hospital affiliation
- Gundersen Lutheran Medical CenterLa Crosse, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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