Mark N. Sayegh, MD
NPI 1700374360ActiveIndividual· Internal Medicine, Infectious Disease· Scarsdale, NY
Internal Medicine, Infectious Disease (MD) with Symphony Medical PC, practicing in Scarsdale, New York. Their prescriptions cost Medicare Part D more than their services did: $176,594 for 161 claims, against $3,407 paid for services in 2024. Viiv Healthcare Company was the largest of 3 companies reporting payments in 2024, $281.52 in all, mostly food and beverage. Lists St John's Riverside Hospital as a hospital affiliation.
Overview
| NPI | 1700374360 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 28, 2018 |
| Last updated in NPPES | Oct 1, 2026 |
| Certified by provider | Oct 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 311603 | NY |
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 - Infectious Disease (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 41 across 6 procedure codes |
| Paid by Medicare | $3,407 |
Part D prescriptions in 2024
| Prescriptions (claims) | 161 · 219 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $176,594 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Infectious Disease |
| Telehealth | Offers telehealth |
Medical group
- Symphony Medical PCDobbs Ferry, NY · 55 clinicians
Hospital affiliation
- St John's Riverside HospitalYonkers, NY
Industry payments (Open Payments)
- 2024$281.52 · 11 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $197.59 | 7 |
| Merck Sharp & Dohme LLC | $55.92 | 3 |
| Abbvie Inc. | $28.01 | 1 |
What the 2024 payments were for
- Food and Beverage$281.52 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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