Asad S. Aziz, D.O.
NPI 1538140082ActiveIndividual· Internal Medicine, Gastroenterology· Hoffman Estates, IL
Internal Medicine, Gastroenterology (D.O.) with Dupage Medical Group Ltd, practicing in Hoffman Estates, Illinois. Their prescriptions cost Medicare Part D more than their services did: $229,507 for 1,273 claims, against $100,490 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $196.22 in all, mostly food and beverage. Lists Alexian Brothers Medical Center 1 and 1 other hospital as hospital affiliations.
Overview
| NPI | 1538140082 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Nov 10, 2005 |
| Last updated in NPPES | Aug 3, 2023 |
| Certified by provider | Aug 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036105904 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 355 |
|---|---|
| Services billed | 817 across 50 procedure codes |
| Paid by Medicare | $100,490 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,273 · 2,444 30-day fills |
|---|---|
| Patients | 457 |
| Total drug cost | $229,507 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Hospital affiliations
- Alexian Brothers Medical Center 1Elk Grove Village, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Industry payments (Open Payments)
- 2025$196.22 · 4 payments from 3 companies
- 2024$246.47 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $113.56 | 1 |
| Janssen Biotech, Inc. | $49.08 | 2 |
| Angiodynamics, Inc. | $33.58 | 1 |
What the 2025 payments were for
- Food and Beverage$196.22 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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