Mitchell Bernsen, M.D.
NPI 1275523631ActiveIndividual· Internal Medicine, Gastroenterology· Arlington Heights, IL
Internal Medicine, Gastroenterology (M.D.) in Arlington Heights, Illinois, trained at Rush Medical College of Rush University (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $737,411 for 1,000 claims, against $361,334 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $3,201 in all, mostly food and beverage.
Overview
| NPI | 1275523631 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 26, 2005 |
| Last updated in NPPES | Feb 19, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036-084785 | 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 | 582 |
|---|---|
| Services billed | 15,315 across 49 procedure codes |
| Paid by Medicare | $361,334 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,000 · 1,834 30-day fills |
|---|---|
| Patients | 470 |
| Total drug cost | $737,411 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Illinois Gastroenterology Group LLCArlington Heights, IL · 115 clinicians
Hospital affiliations
- Advocate Good Shepherd HospitalBarrington, IL
- Alexian Brothers Medical Center 1Elk Grove Village, IL
- Northwest Community Hospital 1Arlington Heights, IL
- St Alexius Medical CenterHoffman Estates, IL
Industry payments (Open Payments)
- 2025$3,201 · 138 payments from 18 companies
- 2024$2,878 · 116 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $735.16 | 34 |
| Janssen Biotech, Inc. | $644.45 | 22 |
| Takeda Pharmaceuticals U.S.A., Inc. | $408.76 | 20 |
| Madrigal Pharmaceuticals | $241.57 | 7 |
| Celltrion USA Inc. | $183.66 | 9 |
What the 2025 payments were for
- Food and Beverage$3,150 · 137 payments
- Education$50.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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