Robert James Cronk
NPI 1013301241ActiveIndividual· Internal Medicine, Hematology & Oncology· Milwaukee, WI
Internal Medicine, Hematology & Oncology in Milwaukee, Wisconsin, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $835,744 for 986 claims, against $46,512 paid for services in 2024. Seagen Inc. was the largest of 3 companies reporting payments in 2025, $153.62 in all, mostly education.
Overview
| NPI | 1013301241 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 25, 2015 |
| Last updated in NPPES | Sep 9, 2021 |
| Certified by provider | Sep 9, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 66558 | WI |
| Internal Medicine | 207R00000X | 66558 | WI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 246 |
|---|---|
| Services billed | 707 across 18 procedure codes |
| Paid by Medicare | $46,512 |
Part D prescriptions in 2024
| Prescriptions (claims) | 986 · 1,515 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $835,744 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Des Moines University of Osteopathic Medicine and Health Sciences |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Froedtert South IncKenosha, WI · 161 clinicians
Hospital affiliation
- Froedtert South Inc.Kenosha, WI
Industry payments (Open Payments)
- 2025$153.62 · 3 payments from 3 companies
- 2024$86.66 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Seagen Inc. | $99.00 | 1 |
| Merck Sharp & Dohme LLC | $28.25 | 1 |
| Gilead Sciences, Inc. | $26.37 | 1 |
What the 2025 payments were for
- Education$99.00 · 1 payment
- Food and Beverage$54.62 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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