Karen Dumesnil, DO
NPI 1558978700ActiveIndividual· Optometrist· Natchitoches, LA
Optometrist (DO) in Natchitoches, Louisiana, trained at Southern College of Optometry (class of 2020). In 2024 Medicare paid $39,844 for 372 patients, and Part D covered 379 of their prescriptions, 70% of them generic. Apellis Pharmaceuticals, Inc. was the largest of 5 companies reporting payments in 2025, $494.49 in all, mostly food and beverage.
Overview
| NPI | 1558978700 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Sep 30, 2020 |
| Last updated in NPPES | May 2, 2024 |
| Certified by provider | May 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 1923-859AT | LA |
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 (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 372 |
|---|---|
| Services billed | 726 across 22 procedure codes |
| Paid by Medicare | $39,844 |
Part D prescriptions in 2024
| Prescriptions (claims) | 379 · 680 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $53,765 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Southern College of Optometry |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Optometry |
Medical group
- Charles E Lyon, MD, APMCTexarkana, TX · 3 clinicians
Industry payments (Open Payments)
- 2025$494.49 · 11 payments from 5 companies
- 2024$313.14 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Apellis Pharmaceuticals, Inc. | $145.42 | 5 |
| Sight Sciences, Inc. | $129.55 | 1 |
| Tarsus Pharmaceuticals, Inc. | $129.37 | 1 |
| Abbvie Inc. | $67.45 | 3 |
| Genentech USA, Inc. | $22.70 | 1 |
What the 2025 payments were for
- Food and Beverage$494.49 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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