Ousama Alkhatib, MD
NPI 1093283905ActiveIndividual· Internal Medicine, Gastroenterology· Orange, CA
Internal Medicine, Gastroenterology (MD) with Genesis Healthcare Partners PC, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $277,139 for 743 claims, against $41,173 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $1,732 in all, mostly food and beverage. Lists Providence St. Joseph Hospital as a hospital affiliation.
Overview
| NPI | 1093283905 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 8, 2018 |
| Last updated in NPPES | Oct 5, 2023 |
| Certified by provider | Oct 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | C170837 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 132 |
|---|---|
| Services billed | 462 across 23 procedure codes |
| Paid by Medicare | $41,173 |
Part D prescriptions in 2024
| Prescriptions (claims) | 743 · 1,308 30-day fills |
|---|---|
| Patients | 396 |
| Total drug cost | $277,139 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Genesis Healthcare Partners PCSan Francisco, CA · 228 clinicians
Hospital affiliation
- Providence St. Joseph HospitalOrange, CA
Industry payments (Open Payments)
- 2025$1,732 · 86 payments from 16 companies
- 2024$2,146 · 112 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $772.02 | 41 |
| Janssen Biotech, Inc. | $176.54 | 10 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $169.64 | 11 |
| Ardelyx, Inc. | $161.09 | 6 |
| Madrigal Pharmaceuticals | $85.83 | 2 |
What the 2025 payments were for
- Food and Beverage$1,732 · 86 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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