Mary Keller
Nurse Practitioner · Milwaukee, WINPI 1992727259
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 97.7% of the total across 307 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 32 manufacturers, the largest accounting for just 14.2% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2024 at $1,706 and has fallen 50.7% since, to $842 in 2025. Among nurse practitioner clinicians in WI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 307 payments — averaging $21.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$929
- Amgen$895
- Takeda Pharmaceuticals U.S.A., Inc.$499
- Vifor Pharma, Inc.$447
- Novartis$397
- Bayer$377
- plus $3K from 26 others
What the payments were for
- Food & beverage$6,40998%
- Education$1532%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| AstraZeneca(2 entities) | 41 | $929 |
| Amgen(2 entities) | 45 | $895 |
| Takeda Pharmaceuticals U.S.A., Inc. | 19 | $499 |
| Vifor Pharma, Inc. | 26 | $447 |
| Novartis | 18 | $397 |
| Bayer | 15 | $377 |
| Daiichi Sankyo Inc. | 14 | $331 |
| ANI Pharmaceuticals, Inc. | 11 | $297 |
| Otsuka America Pharmaceutical, Inc. | 13 | $282 |
| Boehringer Ingelheim | 13 | $248 |
| Travere Therapeutics, Inc. | 12 | $224 |
| Calliditas Therapeutics US Inc. | 10 | $217 |
| Mallinckrodt Hospital Products Inc. | 10 | $188 |
| Aurinia Pharma U.S., Inc. | 9 | $187 |
| GSK | 11 | $181 |
| OPKO Pharmaceuticals, LLC | 8 | $172 |
| Fresenius USA Marketing, Inc. | 6 | $113 |
| Ultragenyx Pharmaceutical Inc. | 5 | $88 |
| Lilly USA, LLC | 2 | $66 |
| Ardelyx, Inc. | 3 | $65 |
| Amicus Therapeutics, Inc. | 3 | $63 |
| Alnylam Pharmaceuticals Inc. | 2 | $52 |
| Novo Nordisk | 2 | $32 |
| Baxter Healthcare | 1 | $31 |
| Apellis Pharmaceuticals, Inc. | 1 | $28 |
| Kyowa Kirin, Inc. | 1 | $27 |
| Akebia Therapeutics Inc | 1 | $26 |
| Rhythm Pharmaceuticals, Inc. | 1 | $26 |
| Xeris Pharmaceuticals, Inc. | 1 | $22 |
| Exthera Medical Corporation | 1 | $18 |
| Sanofi | 1 | $17 |
| AMAG Pharmaceuticals, Inc. | 1 | $17 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- FARXIGA$125
How this compares
$6,562 in reported general payments places this provider in the 95th percentile of 3,478 nurse practitioner providers in Wisconsin.
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 nurse practitioner in Milwaukee
- Trisha WilcoxMilwaukee$174K
- Christina SauldMilwaukee$111K
- Kelly FlugaurMilwaukee$38K
- Mathew TilsonMilwaukee$21K
- Mary Elizabeth Nelson-BiersachMilwaukee$18K
- Angela KrausMilwaukee$17K
- Megan LaneMilwaukee$14K
- Heather SandersMilwaukee$13K
- Cindy KoplitzMilwaukee$12K
- Cheryl BlaschukMilwaukee$10K
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.