Sandra Lora Cremers, MD
NPI 1588654040ActiveIndividual· Ophthalmology· Boston, MA
Ophthalmology (MD) in Boston, Massachusetts, trained at Warren Alpert Medical School of Brown University (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $377,812 for 800 claims, against $131,574 paid for services in 2024. Mallinckrodt Hospital Products Inc. was the largest of 12 companies reporting payments in 2025, $1,121 in all, mostly food and beverage.
Overview
| NPI | 1588654040 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 26, 2005 |
| Last updated in NPPES | Jan 29, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 203729 | MA |
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 (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 352 |
|---|---|
| Services billed | 1,298 across 37 procedure codes |
| Paid by Medicare | $131,574 |
Part D prescriptions in 2024
| Prescriptions (claims) | 800 · 1,419 30-day fills |
|---|---|
| Patients | 259 |
| Total drug cost | $377,812 |
| Generic share | 46% of claims |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Ophthalmology |
Medical group
- Visionary Ophthalmology LLCRockville, MD · 17 clinicians
Industry payments (Open Payments)
- 2025$1,121 · 33 payments from 12 companies
- 2024$828.45 · 38 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $382.18 | 12 |
| Alcon Vision LLC | $186.59 | 5 |
| Genentech USA, Inc. | $126.88 | 1 |
| Sight Sciences, Inc. | $79.01 | 1 |
| Tarsus Pharmaceuticals, Inc. | $74.75 | 2 |
What the 2025 payments were for
- Food and Beverage$1,033 · 32 payments
- Education$87.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 340 ophthalmologists in Boston · All ophthalmologists in Massachusetts