Ossama Hosney Zorub, M.D.
NPI 1891769303ActiveIndividual· Hospitalist· Michigan City, IN
Hospitalist (M.D.) in Michigan City, Indiana, licensed in IN and IL, with an NPI issued in February 2006. Their prescriptions cost Medicare Part D more than their services did: $1,013,776 for 9,868 claims, against $90,278 paid for services in 2024. Amgen Inc. was the largest of 8 companies reporting payments in 2025, $509.25 in all, mostly food and beverage. Lists Advocate Christ Hospital & Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1891769303 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 14, 2006 |
| Last updated in NPPES | Oct 1, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 01045721A | IN |
| Internal Medicine | 207R00000X | 036-092465 | IL |
| Internal Medicine | 207R00000X | 01045721A | IN |
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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 155 |
|---|---|
| Services billed | 1,526 across 43 procedure codes |
| Paid by Medicare | $90,278 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,868 · 15,727 30-day fills |
|---|---|
| Patients | 343 |
| Total drug cost | $1,013,776 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
| Telehealth | Offers telehealth |
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Loyola University Medical CenterMaywood, IL
- Osf Little Company of Mary Medical CenterEvergreen Park, IL
- Palos Community HospitalPalos Heights, IL
Other facilities
- Advocate Home Health Care ServHome health agency · Oakbrook, IL
Industry payments (Open Payments)
- 2025$509.25 · 23 payments from 8 companies
- 2024$359.01 · 19 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $202.41 | 8 |
| Pfizer Inc. | $98.29 | 5 |
| Ardelyx, Inc. | $77.83 | 3 |
| Lilly USA, LLC | $36.02 | 2 |
| Abbvie Inc. | $31.94 | 1 |
What the 2025 payments were for
- Food and Beverage$509.25 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 hospitalists in Michigan City · All hospitalists in Indiana