Alexandra Kroeff, PA
Physician Assistant · Sunnyvale, CANPI 1194964635
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.4% of the total across 171 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 17 manufacturers, the largest accounting for just 18.9% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $2,273, more than ten times the $20 reported in 2021. Among physician assistant clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 171 payments — averaging $30.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$981
- Johnson & Johnson$684
- Regeneron Healthcare Solutions, Inc.$576
- Amgen$534
- Sanofi$445
- Lilly USA, LLC$434
- plus $2K from 11 others
What the payments were for
- Food & beverage$4,95895%
- Education$2385%
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 |
|---|---|---|
| AbbVie(2 entities) | 35 | $981 |
| Johnson & Johnson | 21 | $684 |
| Regeneron Healthcare Solutions, Inc. | 14 | $576 |
| Amgen | 20 | $534 |
| Sanofi | 12 | $445 |
| Lilly USA, LLC | 18 | $434 |
| Pfizer | 4 | $256 |
| Sun Pharmaceutical Industries Inc. | 7 | $254 |
| Dermavant Sciences, Inc. | 5 | $244 |
| LEO Pharma Inc. | 14 | $205 |
| Novartis | 7 | $155 |
| Organon | 1 | $149 |
| Galderma Laboratories, L.p. | 6 | $136 |
| Incyte Corporation | 3 | $67 |
| Teva Pharmaceuticals USA, Inc. | 2 | $40 |
| Biofrontera Inc. | 1 | $23 |
| Arcutis Biotherapeutics, Inc. | 1 | $13 |
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.
How this compares
$5,196 in reported general payments places this provider in the 90th percentile of 10,423 physician assistant providers in California.
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 |
|---|---|---|
| Ketoconazole | 112 | $1,659 |
| Clindamycin Phosphate | 28 | $1,628 |
| Fluorouracil | 22 | $1,607 |
| Tacrolimus | 16 | $1,552 |
| Ammonium Lactate | 59 | $1,298 |
| Metronidazole | 22 | $1,079 |
| Clobetasol Propionate | 15 | $1,007 |
| Ciclopirox | 20 | $597 |
| Triamcinolone Acetonide | 78 | $535 |
| Hydrocortisone | 45 | $458 |
| Mupirocin | 53 | $345 |
| Doxycycline Hyclate | 11 | $251 |
| Nystatin | 18 | $144 |
| Doxycycline Monohydrate | 12 | $114 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Sunnyvale
- Andrea NguyenIrvine$1M
- Mikhail AlperMadera$889K
- Erin JensenUpland$716K
- Franklin ClineSacramento$458K
- Carla CrespoMarina del Rey$297K
- Katherine OsakiEl Centro$274K
- Shawna JonesFountain Valley$266K
- Heather AustinSalinas$219K
- Andrea FoxStanford$172K
- Asma HussainiThousand Oaks$102K
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.