Stephen Ansell, MD
Hematology · Rochester, MNNPI 1558335935
Payments from drug & device makers
Across 190 payments — averaging $26,798 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$1.3M
- E.r. Squibb & Sons, L.L.C.$1.1M
- Pfizer$1.1M
- Regeneron$590K
- Seagen Inc.$381K
- Astrazeneca UK Limited$227K
- plus $400K from 4 others
Across 19 payments — averaging $10,121 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.
- Orphai Therapeutics Inc.$178K
- Regeneron$13K
- Pfizer$1K
General payments by program year
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 |
|---|---|---|
| Merck | 3 | $1,347,633 |
| E.r. Squibb & Sons, L.L.C. | 24 | $1,074,264 |
| Pfizer | 14 | $1,071,663 |
| Regeneron | 24 | $590,272 |
| Seagen Inc. | 69 | $380,507 |
| Astrazeneca UK Limited | 6 | $227,001 |
| ADC Therapeutics America, Inc. | 7 | $210,774 |
| Takeda Pharmaceuticals U.S.A., Inc. | 30 | $128,359 |
| AstraZeneca | 7 | $31,309 |
| Genmab A/s | 6 | $29,900 |
How this compares
$5,091,683 in reported general payments places this provider in the 90th percentile of 111 hematology 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.
Other hematology in Rochester
- Sameer ParikhRochester$44.6M
- Shaji KumarRochester$29.6M
- Lindsey RoekerRochester$9.7M
- Yi LinRochester$9.2M
- Grzegorz NowakowskiRochester$9.1M
- Prashant KapoorRochester$7.6M
- Patrick JohnstonRochester$7.3M
- Mark LitzowRochester$7M
- Jose Villasboas BisnetoRochester$5.5M
- Angela DispenzieriRochester$3.3M
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.