Alyssa Flanagan Keyser, OD
NPI 1427618123ActiveIndividual· Optometrist· Hampton Bays, NY
Optometrist (OD) in Hampton Bays, New York, trained at Pennsylvania College of Optometry (class of 2019). In 2024 Medicare paid $19,368 for 122 patients, and Part D covered 53 of their prescriptions, 51% of them generic. Coopervision Inc. reported $27.38 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1427618123 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Jun 17, 2019 |
| Last updated in NPPES | Jun 15, 2021 |
| Certified by provider | Jun 15, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 988 | NH |
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 - Optometry (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 122 |
|---|---|
| Services billed | 277 across 17 procedure codes |
| Paid by Medicare | $19,368 |
Part D prescriptions in 2024
| Prescriptions (claims) | 53 · 75 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $13,701 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Pennsylvania College of Optometry |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Optometry |
Medical group
- Legacy Optical IncHampton Bays, NY · 3 clinicians
Industry payments (Open Payments)
- 2025$27.38 · 1 payment from 1 company
- 2024$20.02 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coopervision Inc. | $27.38 | 1 |
What the 2025 payments were for
- Food and Beverage$27.38 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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