Ding Martin Ma, MD
NPI 1699031005ActiveIndividual· Ophthalmology· Norwalk, CT
Ophthalmology (MD) with Hudson Valley Eye Surgeons, practicing in Norwalk, Connecticut. In 2024 Medicare paid $129,933 for 672 patients, and Part D covered 646 of their prescriptions, 67% of them generic. Mallinckrodt Hospital Products Inc. was the largest of 10 companies reporting payments in 2025, $470.79 in all, mostly food and beverage. Lists Vassar Brothers Medical Center as a hospital affiliation.
Overview
| NPI | 1699031005 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 10, 2012 |
| Last updated in NPPES | Nov 26, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 60376 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 672 |
|---|---|
| Services billed | 1,502 across 32 procedure codes |
| Paid by Medicare | $129,933 |
Part D prescriptions in 2024
| Prescriptions (claims) | 646 · 880 30-day fills |
|---|---|
| Patients | 310 |
| Total drug cost | $62,166 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical group
- Hudson Valley Eye SurgeonsFishkill, NY · 8 clinicians
Hospital affiliation
- Vassar Brothers Medical CenterPoughkeepsie, NY
Industry payments (Open Payments)
- 2025$470.79 · 17 payments from 10 companies
- 2024$344.30 · 16 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $110.69 | 1 |
| Tarsus Pharmaceuticals, Inc. | $105.07 | 3 |
| Amgen Inc. | $71.86 | 4 |
| Bausch & Lomb Americas Inc. | $46.64 | 3 |
| Rayner Intraocular Lenses Limited | $26.18 | 1 |
What the 2025 payments were for
- Food and Beverage$470.79 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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