Nina H. Merel, MD
NPI 1285616300ActiveIndividual· Internal Medicine, Gastroenterology· Glenview, IL
Internal Medicine, Gastroenterology (MD) in Glenview, Illinois, trained at Rush Medical College of Rush University (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $328,848 for 643 claims, against $131,292 paid for services in 2024. Janssen Biotech, Inc. was the largest of 16 companies reporting payments in 2025, $53,109 in all, mostly speaking and faculty fees.
Overview
| NPI | 1285616300 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 15, 2005 |
| Last updated in NPPES | Apr 25, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036102428 | 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 | 409 |
|---|---|
| Services billed | 2,946 across 22 procedure codes |
| Paid by Medicare | $131,292 |
Part D prescriptions in 2024
| Prescriptions (claims) | 643 · 1,350 30-day fills |
|---|---|
| Patients | 259 |
| Total drug cost | $328,848 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Illinois Gastroenterology Group LLCArlington Heights, IL · 115 clinicians
Hospital affiliations
- Advocate Lutheran General HospitalPark Ridge, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Lake Forest HospitalLake Forest, IL
Industry payments (Open Payments)
- 2025$53,109 · 101 payments from 16 companies
- 2024$3,680 · 85 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $51,920 | 54 |
| Abbvie Inc. | $303.33 | 14 |
| Ardelyx, Inc. | $141.34 | 5 |
| Celltrion USA Inc. | $136.71 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $114.91 | 4 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$42,109 · 11 payments
- Travel and Lodging$7,837 · 9 payments
- Food and Beverage$3,153 · 80 payments
- Education$10.48 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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