Sarah Arnkoff, NP
Gerontology · West Bloomfield, MINPI 1851883516
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (57.1%), travel and lodging and consulting fees — rather than concentrated in one kind of arrangement. 40 manufacturers reported payments, led by Medtronic at 28.8% of the total. 2025 is the largest year on record at $5,500, 5.6 times the $982 reported in 2021. Among gerontology clinicians in MI 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 332 payments — averaging $53.43 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$5K
- Bayer$2K
- Johnson & Johnson$2K
- Pfizer$1K
- Axonics, Inc.$1K
- Dendreon Pharmaceuticals LLC$742
- plus $6K from 34 others
What the payments were for
- Consulting fees$2,94617%
- Speaking & faculty fees$8455%
- Travel & lodging$3,32219%
- Food & beverage$10,12557%
- Education$5033%
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 |
|---|---|---|
| Medtronic | 70 | $5,110 |
| Bayer | 8 | $2,004 |
| Johnson & Johnson | 17 | $1,811 |
| Pfizer | 14 | $1,122 |
| Axonics, Inc. | 24 | $1,012 |
| Dendreon Pharmaceuticals LLC | 18 | $742 |
| Teleflex LLC | 3 | $658 |
| AstraZeneca | 10 | $642 |
| Sumitomo Pharma America, Inc. | 32 | $591 |
| Siemens Medical Solutions USA, Inc. | 7 | $502 |
| Merck | 13 | $407 |
| Boston Scientific | 15 | $390 |
| Astellas Pharma US Inc | 9 | $367 |
| AbbVie(2 entities) | 22 | $343 |
| Procept Biorobotics Corporation | 5 | $278 |
| Janssen Scientific Affairs, LLC | 3 | $199 |
| Bioprotect Medical, Inc. | 3 | $193 |
| Urogen Pharma, Inc. | 6 | $175 |
| Myriad Genetic Laboratories, Inc. | 2 | $170 |
| Endo USA, Inc. | 4 | $128 |
| Endo Pharmaceuticals Inc. | 7 | $126 |
| Antares Pharma, Inc. | 5 | $94 |
| Tolmar, Inc. | 5 | $79 |
| Olympus America Inc. | 4 | $72 |
| Urovant Sciences Inc | 4 | $56 |
| Amgen | 3 | $54 |
| Sun Pharmaceutical Industries Inc. | 2 | $53 |
| Avation Medical, Inc. | 1 | $45 |
| Progenics Pharmaceuticals, Inc. | 2 | $43 |
| Clarus Therapeutics Inc. | 2 | $40 |
| Halozyme Inc | 2 | $38 |
| Coloplast | 2 | $28 |
| Ferring Pharmaceuticals Inc. | 1 | $25 |
| Calyxo, Inc. | 1 | $23 |
| Palette Life Sciences, Inc. | 1 | $22 |
| Novartis | 1 | $22 |
| Verity Pharmaceuticals Inc. | 1 | $22 |
| 180 Medical, Inc. | 1 | $18 |
| Vertex | 1 | $18 |
| Tolmar Pharmaceuticals, Inc. | 1 | $18 |
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.
- INTERSTIM$3,213
- Erleada$1,227
- ORGOVYX$845
- UroLift System$643
- LYNPARZA$529
- PROVENGE$400
- Axonics$354
- NURO$280
- BIOPROTECT BALLOON IMPLANT SYSTEM$165
- myRisk$155
- Nubeqa$136
- AKEEGA$125
- RYBREVANT$125
- CARVYKTI$125
- AQUABEAM SYSTEM$115
- CD HORIZON SPINAL SYSTEM$103
How this compares
$17,740 in reported general payments places this provider in the 95th percentile of 279 gerontology providers in Michigan.
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 |
|---|---|---|
| MyrbetriqMirabegron | 106 | $66,250 |
| GemtesaVibegron | 66 | $49,998 |
| Mirabegron ErMirabegron | 31 | $12,002 |
| Trospium Chloride | 44 | $2,621 |
| Fosfomycin Tromethamine | 15 | $1,583 |
| Methenamine Hippurate | 26 | $1,498 |
| Tamsulosin Hcl | 91 | $1,233 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 111 | $907 |
| Solifenacin Succinate | 34 | $776 |
| Testosterone Cypionate | 16 | $521 |
| Cephalexin | 61 | $512 |
| Estradiol | 11 | $483 |
| Oxybutynin Chloride | 18 | $367 |
| Finasteride | 24 | $352 |
| NitrofurantoinNitrofurantoin Macrocrystal | 25 | $244 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Astellas Pharma US IncMyrbetriq | $367 | $66,250106 claims |
| Sumitomo Pharma America, Inc.Gemtesa | $591 | $49,99866 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 279 gerontology providers in Michigan.
Other gerontology in West Bloomfield
- Cynthera McNeillWest Bloomfield$9K
- Gwendolyn WrightGrand Blanc$47K
- Matthew AmanRochester Hills$21K
- Deborah GriffinPetoskey$11K
- Angela EmbreeGrand Rapids$10K
- Bethany DalessandroWyandotte$10K
- Gabrielle NadeauJackson$10K
- Samantha BurgessGrand Rapids$9K
- Joanna HernandezWarren$8K
- Mary GardnerGrand Rapids$8K
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.