Leslie Sleuwen, MD
NPI 1063464741ActiveIndividual· Family Medicine· Hinsdale, IL
Family Medicine (MD) with Adventist Midwest Health, practicing in Hinsdale, Illinois. Their prescriptions cost Medicare Part D more than their services did: $39,245 for 677 claims, against $18,816 paid for services in 2024. Organon LLC was the largest of 4 companies reporting payments in 2025, $3,327 in all, mostly compensation for serving as faculty or as a speaker for a me. Lists Uchicago Medicine Adventhealth Glenoaks and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1063464741 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 17, 2006 |
| Last updated in NPPES | Mar 26, 2021 |
| Certified by provider | Mar 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 36099994 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 95 |
|---|---|
| Services billed | 258 across 38 procedure codes |
| Paid by Medicare | $18,816 |
Part D prescriptions in 2024
| Prescriptions (claims) | 677 · 1,503 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $39,245 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Adventist Midwest HealthHinsdale, IL · 15 clinicians
Hospital affiliations
- Uchicago Medicine Adventhealth GlenoaksGlendale Heights, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Industry payments (Open Payments)
- 2025$3,327 · 8 payments from 4 companies
- 2024$5,735 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $3,077 | 4 |
| Phathom Pharmaceuticals, Inc. | $124.01 | 1 |
| Heartflow, Inc. | $100.00 | 2 |
| Abbvie Inc. | $25.71 | 1 |
What the 2025 payments were for
- Compensation for serving as faculty or as a speaker for a medical education program$3,042 · 2 payments
- Food and Beverage$285.20 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 64 family medicine physicians in Hinsdale · All family medicine physicians in Illinois