Mark Edward Dubin, M.D.
NPI 1245202704ActiveIndividual· Internal Medicine, Gastroenterology· Hoffman Estates, IL
Internal Medicine, Gastroenterology (M.D.) with Dupage Medical Group Ltd, practicing in Hoffman Estates, Illinois. Their prescriptions cost Medicare Part D more than their services did: $416,383 for 1,031 claims, against $117,022 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $389.22 in all, mostly food and beverage. Lists Alexian Brothers Medical Center 1 and 1 other hospital as hospital affiliations.
Overview
| NPI | 1245202704 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 7, 2006 |
| Last updated in NPPES | Aug 7, 2023 |
| Certified by provider | Aug 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036-078199 | 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 | 361 |
|---|---|
| Services billed | 1,478 across 87 procedure codes |
| Paid by Medicare | $117,022 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,031 · 2,178 30-day fills |
|---|---|
| Patients | 437 |
| Total drug cost | $416,383 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Hospital affiliations
- Alexian Brothers Medical Center 1Elk Grove Village, IL
- St Alexius Medical CenterHoffman Estates, IL
Industry payments (Open Payments)
- 2025$389.22 · 5 payments from 3 companies
- 2024$842.45 · 10 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $155.23 | 3 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $122.07 | 1 |
| Medtronic, Inc. | $111.92 | 1 |
What the 2025 payments were for
- Food and Beverage$389.22 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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