Eldad Shaul Bialecki, M.D.
NPI 1003952458ActiveIndividual· Internal Medicine, Gastroenterology· O Fallon, MO
Internal Medicine, Gastroenterology (M.D.) in O Fallon, Missouri, trained at Saint Louis University School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $1,474,358 for 2,196 claims, against $195,238 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,735 in all, mostly food and beverage.
Overview
| NPI | 1003952458 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 30, 2007 |
| Last updated in NPPES | Mar 17, 2026 |
| Certified by provider | Mar 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 2003013331 | MO |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 323 |
|---|---|
| Services billed | 7,640 across 60 procedure codes |
| Paid by Medicare | $195,238 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,196 · 3,423 30-day fills |
|---|---|
| Patients | 854 |
| Total drug cost | $1,474,358 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Gastroenterology |
Medical group
- Physician Groups LcFarmington, MO · 521 clinicians
Hospital affiliations
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Christian Hospital NortheastSaint Louis, MO
- Missouri Baptist Medical CenterSaint Louis, MO
- Progress West HospitalOfallon, MO
Industry payments (Open Payments)
- 2025$1,735 · 83 payments from 17 companies
- 2024$3,013 · 170 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $347.96 | 19 |
| Janssen Biotech, Inc. | $267.69 | 10 |
| Takeda Pharmaceuticals U.S.A., Inc. | $246.02 | 14 |
| Ardelyx, Inc. | $92.31 | 6 |
| Echosens North America, Inc. | $92.23 | 1 |
What the 2025 payments were for
- Food and Beverage$1,651 · 82 payments
- Education$84.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in O Fallon
- 1013414317
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- 1619593779
- 1437110681
- 1649252461
All Internal Medicine, Gastroenterology providers in Missouri →