Robert McWilliams, MD
Medical Oncology · Rochester, MNNPI 1487633962
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $153 of the $164 with a category attached, or 93.4%. E.r. Squibb & Sons, L.L.C. accounts for 93.4% of it on its own, with 1 other manufacturer making up the rest. That places this record below the midpoint for medical oncology clinicians in MN, where the typical reported total is $1,006.
Across 2 payments — averaging $82.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$153
- Merck$11
Across 169 payments — averaging $37,061 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- GSK$4.1M
- Merck$1.9M
- Genentech, Inc.$100K
- Novartis$99K
- Pfizer$36K
- Ipsen Bioscience Inc.$21K
- plus $14K from 3 others
What the payments were for
- Travel & lodging$15393%
- Education$117%
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 1 | $153 |
| Merck | 1 | $11 |
How this compares
$164 in reported general payments places this provider in the 30th percentile of 133 medical oncology providers in Minnesota.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| CreonLipase/Protease/Amylase | 20 | $56,147 |
| EliquisApixaban | 15 | $17,438 |
| Dexamethasone | 41 | $398 |
| Olanzapine | 20 | $191 |
| Prochlorperazine Maleate | 16 | $146 |
| Ondansetron Hcl | 27 | $146 |
| LoperamideLoperamide Hcl | 11 | $95 |
Paid to pharmacies, not to this prescriber.
Other medical oncology in Rochester
- Amit MahipalRochester$746K
- Alton SartorRochester$688K
- Ben GeorgeRochester$579K
- Elisabeth HeathRochester$236K
- Matthew GoetzRochester$136K
- Thorvardur HalfdanarsonRochester$86K
- Harry YoonRochester$69K
- Karthik GiridharRochester$66K
- Joleen HubbardRochester$59K
- Lionel Aurelien Kankeu FonkouaRochester$58K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.