Yousef Nassar
NPI 1750730677ActiveIndividual· Internal Medicine, Gastroenterology· Oak Lawn, IL
Internal Medicine, Gastroenterology with Advocate Health and Hospitals Corporation and 1 other group, practicing in Oak Lawn, Illinois. 151 Medicare patients in 2024, $37,285 paid; nearly all of their 377 Part D prescriptions were generic (90%). Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $452.18 in all, mostly food and beverage. Lists Advocate Christ Hospital & Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1750730677 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jun 10, 2016 |
| Last updated in NPPES | Jul 24, 2026 |
| Certified by provider | Jul 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036158704 | IL |
| Internal Medicine | 207R00000X | 036158704 | 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 - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 151 |
|---|---|
| Services billed | 395 across 30 procedure codes |
| Paid by Medicare | $37,285 |
Part D prescriptions in 2024
| Prescriptions (claims) | 377 · 544 30-day fills |
|---|---|
| Patients | 188 |
| Total drug cost | $11,418 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
- Mount Sinai Community FoundationChicago, IL · 248 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Holy Cross HospitalChicago, IL
- Mt Sinai Hospital Medical CenterChicago, IL
Industry payments (Open Payments)
- 2025$452.18 · 21 payments from 8 companies
- 2024$452.84 · 20 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $155.96 | 7 |
| Takeda Pharmaceuticals U.S.A., Inc. | $87.34 | 5 |
| Janssen Biotech, Inc. | $70.55 | 3 |
| Ardelyx, Inc. | $57.50 | 2 |
| Gilead Sciences, Inc. | $33.93 | 1 |
What the 2025 payments were for
- Food and Beverage$452.18 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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