Marc El Khoury, MD
NPI 1083825996ActiveIndividual· Internal Medicine, Infectious Disease· Valhalla, NY
Internal Medicine, Infectious Disease (MD) with Westchester Medical Center Advanced Physician Services PC, practicing in Valhalla, New York. Their prescriptions cost Medicare Part D more than their services did: $994,072 for 710 claims, against $41,266 paid for services in 2024. Abbott Laboratories was the largest of 3 companies reporting payments in 2025, $335.64 in all, mostly food and beverage. Lists Westchester Medical Center as a hospital affiliation.
Overview
| NPI | 1083825996 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 24, 2007 |
| Last updated in NPPES | Jul 24, 2021 |
| Certified by provider | Jul 24, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 274391 | NY |
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 - Infectious Disease (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 209 |
|---|---|
| Services billed | 405 across 15 procedure codes |
| Paid by Medicare | $41,266 |
Part D prescriptions in 2024
| Prescriptions (claims) | 710 · 896 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $994,072 |
| Generic share | 59% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Westchester Medical Center Advanced Physician Services PCValhalla, NY · 897 clinicians
Hospital affiliation
- Westchester Medical CenterValhalla, NY
Industry payments (Open Payments)
- 2025$335.64 · 6 payments from 3 companies
- 2024$30.12 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $205.65 | 1 |
| Pfizer Inc. | $106.02 | 4 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $23.97 | 1 |
What the 2025 payments were for
- Food and Beverage$335.64 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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