Crystal Wilken
Nurse Practitioner · Waterloo, IANPI 1720487838
Payments from drug & device makers
Across 32 payments — averaging $24.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi-aventis U.S. LLC$168
- Regeneron Healthcare Solutions, Inc.$153
- Sanofi$151
- Organogenesis Inc.$140
- Pfizer$45
- Harmony Biosciences LLC$41
- plus $79 from 3 others
What the payments were for
- Food & beverage$60978%
- Education$16822%
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 |
|---|---|---|
| Sanofi-aventis U.S. LLC | 2 | $168 |
| Regeneron Healthcare Solutions, Inc. | 7 | $153 |
| Sanofi | 7 | $151 |
| Organogenesis Inc. | 7 | $140 |
| Pfizer | 3 | $45 |
| Harmony Biosciences LLC | 2 | $41 |
| Kaleo, Inc. | 2 | $39 |
| Kerecis Limited | 1 | $21 |
| Novartis | 1 | $19 |
How this compares
$777 in reported general payments places this provider in the 80th percentile of 1,346 nurse practitioner providers in Iowa.
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 |
|---|---|---|
| Dupixent SyringeDupilumab | 22 | $90,984 |
| Azelastine Hcl | 238 | $5,477 |
| Metronidazole | 50 | $3,684 |
| Fluticasone Propionate | 280 | $3,271 |
| Ipratropium Bromide | 31 | $955 |
| Fluorouracil | 11 | $567 |
| Ketoconazole | 32 | $537 |
| Montelukast Sodium | 49 | $395 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 16 | $282 |
| Triamcinolone Acetonide | 31 | $263 |
| Ofloxacin | 14 | $213 |
| Mupirocin | 19 | $153 |
| Cephalexin | 37 | $131 |
| Clindamycin Hcl | 12 | $34 |
| Amoxicillin | 23 | $27 |
Paid to pharmacies, not to this prescriber.
Other nurse practitioner in Waterloo
- Jonathon HenningsWaterloo$11K
- Michaela JohnsonWaterloo$9K
- Megan O'NealWaterloo$4K
- Crystal SchraderWaterloo$4K
- Irmela SalihovicWaterloo$4K
- Stephanie SmithWaterloo$3K
- Nicole MorganDes Moines$106K
- Julie CoffeyIowa City$31K
- Mary JohnsonDavenport$30K
- Megan Hart FernandezCedar Rapids$19K
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.