Jack Leya, MD
NPI 1336128602ActiveIndividual· Internal Medicine, Gastroenterology· Maywood, IL
Internal Medicine, Gastroenterology (MD) with Loyola University Medical Center and 1 other group, practicing in Maywood, Illinois. Mostly services rather than prescriptions: Medicare paid $34,065 for 165 patients in 2024, with only 30 Part D claims. Medtronic, Inc. reported $42.79 in payments in 2024, mostly food and beverage. Lists Fhn Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1336128602 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 13, 2006 |
| Last updated in NPPES | Jul 9, 2026 |
| Certified by provider | Jul 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036066173 | IL |
| Internal Medicine | 207R00000X | 036066173 | 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) | Enrolled Practitioner - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 311 across 48 procedure codes |
| Paid by Medicare | $34,065 |
Part D prescriptions in 2024
| Prescriptions (claims) | 30 · 34 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $1,242 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Loyola University Medical CenterMaywood, IL · 953 clinicians
- Freeport Regional Health Care FoundationFreeport, IL · 92 clinicians
Hospital affiliations
- Fhn Memorial HospitalFreeport, IL
- Loyola University Medical CenterMaywood, IL
Industry payments (Open Payments)
- 2024$42.79 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $42.79 | 1 |
What the 2024 payments were for
- Food and Beverage$42.79 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 42 gastroenterologists in Maywood · All gastroenterologists in Illinois