Leslie Sleuwen, MD
Family Medicine · Hinsdale, ILNPI 1063464741
Payments from drug & device makers
Across 29 payments — averaging $689.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Organon$14K
- Merck$5K
- AbbVie$230
- Madrigal Pharmaceuticals$136
- Phathom Pharmaceuticals, Inc.$124
- Heartflow, Inc.$100
- plus $174 from 4 others
What the payments were for
- Speaking & faculty fees$19,16796%
- Food & beverage$7284%
- Education$990%
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 |
|---|---|---|
| Organon | 12 | $14,077 |
| Merck | 6 | $5,152 |
| AbbVie | 3 | $230 |
| Madrigal Pharmaceuticals | 1 | $136 |
| Phathom Pharmaceuticals, Inc. | 1 | $124 |
| Heartflow, Inc. | 2 | $100 |
| Astellas Pharma US Inc | 1 | $99 |
| Gilead | 1 | $32 |
| Johnson & Johnson | 1 | $24 |
| Cranial Technologies, 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.
How this compares
$19,994 in reported general payments places this provider in the 95th percentile of 4,116 family medicine providers in Illinois.
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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 19 | $602 |
| Levothyroxine Sodium | 38 | $463 |
| Lisinopril | 38 | $276 |
| Metformin Hcl ErMetformin Hcl | 25 | $248 |
| Atorvastatin Calcium | 57 | $233 |
| Losartan Potassium | 15 | $194 |
| Rosuvastatin Calcium | 23 | $177 |
| Clonazepam | 12 | $177 |
| Pantoprazole Sodium | 14 | $169 |
| Vitamin D2Ergocalciferol (Vitamin D2) | 12 | $122 |
| Alendronate Sodium | 35 | $118 |
| Amlodipine Besylate | 11 | $116 |
| Simvastatin | 14 | $104 |
| Duloxetine Hcl | 13 | $97 |
| Metoprolol Succinate | 11 | $97 |
Paid to pharmacies, not to this prescriber.
Other family medicine in Hinsdale
- Daniel BruneCreve Coeur$15M
- Ali BajwaSpringfield$5.8M
- John ElsenEvergreen Park$5M
- Manohar JethaniBerwyn$4.9M
- Tiffany NguyenSkokie$3.9M
- Bradley TorphyChicago$3M
- Diana WidicusRochester$2.6M
- Nicholas WeberEureka$2.5M
- Stanley KochMorton$2.3M
- Mark ChristensenNew Lenox$2.1M
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.