Mark P. Ghassibi, MD
NPI 1356871230ActiveIndividual· Ophthalmology, Retina Specialist· New York, NY
Ophthalmology, Retina Specialist (MD) in New York, New York, trained at George Washington University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $79,570 for 1,020 claims, against $4,067 paid for services in 2024. Carl Zeiss Meditec USA, Inc. was the largest of 3 companies reporting payments in 2025, $1,443 in all, mostly travel and lodging.
Overview
| NPI | 1356871230 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 14, 2017 |
| Last updated in NPPES | Oct 11, 2023 |
| Certified by provider | Oct 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | 311158 | NY |
| Ophthalmology | 207W00000X | 311158 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | 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 - Ophthalmology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 67 across 9 procedure codes |
| Paid by Medicare | $4,067 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,020 · 1,355 30-day fills |
|---|---|
| Patients | 164 |
| Total drug cost | $79,570 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Ophthalmology |
Medical groups
- University Physicians of Brooklyn, Inc.Brooklyn, NY · 177 clinicians
- Amboy Medical Practice PCStaten Island, NY · 173 clinicians
Hospital affiliations
- Richmond University Medical CenterStaten Island, NY
- Suny/Downstate University Hospital of BrooklynBrooklyn, NY
- Woodhull Medical & Mental Health CenterBrooklyn, NY
Industry payments (Open Payments)
- 2025$1,443 · 13 payments from 3 companies
- 2024$57.17 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Carl Zeiss Meditec USA, Inc. | $1,314 | 8 |
| Regeneron Healthcare Solutions, Inc. | $98.00 | 4 |
| Mallinckrodt Hospital Products Inc. | $30.44 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,218 · 2 payments
- Food and Beverage$224.72 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 Ophthalmology, Retina Specialist providers in New York · All Ophthalmology, Retina Specialist providers in New York