Durga Larkin, MD
Ophthalmology · South Kingstown, RINPI 1063466324
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $2,332 of the $3,863 with a category attached, or 60.4%. 14 manufacturers reported payments, led by Alcon at 34.3% of the total. Reporting peaked in 2024 at $1,580 and has fallen 58.5% since, to $657 in 2025.
Across 47 payments — averaging $82.19 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$1K
- Johnson & Johnson Surgical Vision, Inc.$932
- Glaukos Corporation$537
- Alcon Research LLC$400
- AbbVie$188
- Aerie Pharmaceuticals, Inc.$123
- plus $358 from 8 others
What the payments were for
- Consulting fees$2,33260%
- Food & beverage$1,53140%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Alcon | 11 | $1,325 |
| Johnson & Johnson Surgical Vision, Inc. | 1 | $932 |
| Glaukos Corporation | 9 | $537 |
| Alcon Research LLC | 1 | $400 |
| AbbVie(2 entities) | 10 | $188 |
| Aerie Pharmaceuticals, Inc. | 1 | $123 |
| Bausch & Lomb Americas Inc. | 6 | $116 |
| AstraZeneca | 1 | $88 |
| Rxsight Inc | 2 | $47 |
| Regeneron Healthcare Solutions, Inc. | 1 | $30 |
| Tarsus Pharmaceuticals, Inc. | 1 | $23 |
| Mallinckrodt Hospital Products Inc. | 1 | $20 |
| Novartis | 1 | $18 |
| Kala Pharmaceuticals, Inc. | 1 | $15 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$3,863 in reported general payments places this provider in the 80th percentile of 69 ophthalmology providers in Rhode Island.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Bromfenac Sodium | 130 | $31,896 |
| RestasisCyclosporine | 28 | $25,343 |
| ProlensaBromfenac Sodium | 43 | $14,773 |
| Prednisolone Acetate | 400 | $13,476 |
| LumiganBimatoprost | 11 | $5,818 |
| Travoprost | 39 | $5,448 |
| Alphagan PBrimonidine Tartrate | 11 | $4,747 |
| ErythromycinErythromycin Base | 391 | $4,453 |
| Brinzolamide | 21 | $4,330 |
| Ofloxacin | 217 | $3,796 |
| SimbrinzaBrinzolamide/Brimonidine Tart | 11 | $3,727 |
| Loteprednol Etabonate | 24 | $3,487 |
| Latanoprost | 199 | $2,889 |
| Timolol Maleate | 164 | $2,786 |
| Doxycycline Monohydrate | 13 | $933 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieRestasis, Lumigan, Alphagan P | $188 | $35,90850 claims |
| AlconSimbrinza | $1,325 | $3,72711 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 69 ophthalmology providers in Rhode Island.
Other ophthalmology in South Kingstown
- Thomas CoghlinSouth Kingstown$210
- Sarah AnisProvidence$163K
- Sarah LevyWakefield$148K
- Nermin GraiseWarwick$60K
- Jesse RichmanProvidence$30K
- Alex GerberMiddletown$15K
- Yoash EnzerProvidence$11K
- Giulio DiamanteJohnston$6K
- David TienProvidence$6K
- Leah KammerdienerWarwick$6K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.