Michelle Melissa Ishaya, DO
NPI 1154996924ActiveIndividual· Internal Medicine, Gastroenterology· Niles, IL
Internal Medicine, Gastroenterology (DO) in Niles, Illinois, licensed in IL, with an NPI issued in May 2021. Part D covered 109 prescriptions written in 2024, 75% of them generic. Ipsen Biopharmaceuticals, Inc reported $20.36 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1154996924 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 24, 2021 |
| Last updated in NPPES | Apr 1, 2024 |
| Certified by provider | Apr 1, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 125.077708 | IL |
| Internal Medicine | 207R00000X | 125.077708 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 109 · 189 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $6,307 |
| Generic share | 75% of claims |
Industry payments (Open Payments)
- 2025$20.36 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | $20.36 | 1 |
What the 2025 payments were for
- Food and Beverage$20.36 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 gastroenterologists in Niles · All gastroenterologists in Illinois