Oscar Deleon-Casasola, MD
Anesthesiology · Buffalo, NYNPI 1467458851
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $58,334 of the $94,649 with a category attached, or 61.6%. 10 manufacturers reported payments, led by GRT US Holding, Inc. at 29.1% of the total. Reporting peaked in 2022 at $49,062 and has fallen 72.1% since, to $13,703 in 2025. Among anesthesiology clinicians in NY with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 94 payments — averaging $1006.91 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GRT US Holding, Inc.$28K
- Kowa Pharmaceuticals America, Inc.$14K
- Vertex$14K
- Medtronic$13K
- Trevena, Inc.$10K
- Merck$7K
- plus $10K from 4 others
What the payments were for
- Consulting fees$58,33462%
- Speaking & faculty fees$22,63624%
- Travel & lodging$11,45012%
- Food & beverage$2,2292%
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 |
|---|---|---|
| GRT US Holding, Inc. | 7 | $27,558 |
| Kowa Pharmaceuticals America, Inc. | 18 | $14,198 |
| Vertex | 19 | $13,703 |
| Medtronic | 23 | $12,699 |
| Trevena, Inc. | 8 | $9,635 |
| Merck | 11 | $7,270 |
| Heron Therapeutics, Inc. | 4 | $5,416 |
| Emergent Biosolutions Inc. | 1 | $3,500 |
| Redhill Biopharma Inc. | 2 | $571 |
| Comsort, Inc | 1 | $100 |
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
$94,649 in reported general payments places this provider in the 95th percentile of 4,157 anesthesiology providers in New York.
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 |
|---|---|---|
| LyricaPregabalin | 13 | $9,461 |
| Oxymorphone Hcl ErOxymorphone Hcl | 17 | $9,370 |
| Gabapentin | 171 | $5,240 |
| Lidocaine | 65 | $4,080 |
| Methadone Hcl | 101 | $2,416 |
| Oxycodone Hcl | 112 | $1,914 |
| Duloxetine Hcl | 130 | $1,752 |
| Oxcarbazepine | 40 | $1,728 |
| Pregabalin | 47 | $1,649 |
| Baclofen | 57 | $1,142 |
| Morphine Sulfate ErMorphine Sulfate | 27 | $892 |
| Hydromorphone Hcl | 15 | $611 |
| Celecoxib | 14 | $220 |
| Tizanidine Hcl | 11 | $103 |
| Tramadol Hcl | 13 | $84 |
Paid to pharmacies, not to this prescriber.
Other anesthesiology in Buffalo
- Amita KundraBuffalo$21K
- Mark KronenfeldBrooklyn$2.4M
- Kiran PatelNew York$832K
- Karina GritsenkoBronx$665K
- Marc DicksteinNew York$585K
- Admir HadzicNew York$510K
- Christopher DimeoNew York$449K
- Christopher RieglerNew York$429K
- William UrmeyNew York$397K
- Sudhir DiwanNew York$255K
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.