Luis Irizzary, MD
Anesthesiology · Hattiesburg, MSNPI 1669588547
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 34 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 10 manufacturers, the largest accounting for just 22.4% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2022 at $189 and has fallen 71.4% since, to $54 in 2025.
Across 34 payments — averaging $21.93 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mallinckrodt Enterprises LLC$167
- Merck$148
- Chiesi USA, Inc.$122
- Mindray DS USA, Inc.$113
- Acacia Pharma Inc$90
- Mallinckrodt Hospital Products Inc.$28
- plus $78 from 4 others
What the payments were for
- Food & beverage$746100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Mallinckrodt Enterprises LLC | 8 | $167 |
| Merck | 8 | $148 |
| Chiesi USA, Inc. | 8 | $122 |
| Mindray DS USA, Inc. | 2 | $113 |
| Acacia Pharma Inc | 2 | $90 |
| Mallinckrodt Hospital Products Inc. | 2 | $28 |
| Eagle Pharmaceuticals, Inc. | 1 | $25 |
| Edwards Lifesciences | 1 | $19 |
| Neotract Inc. | 1 | $19 |
| Vertex | 1 | $14 |
How this compares
$746 in reported general payments places this provider in the 85th percentile of 265 anesthesiology providers in Mississippi.
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.
Other anesthesiology in Hattiesburg
- Timothy TorresHattiesburg$9K
- Kristen SpruillHattiesburg$2K
- David SicardHattiesburg$1K
- Charles HendersonHattiesburg$738
- David MooreHattiesburg$639
- Christopher PainterHattiesburg$514
- Jay McDonaldSouthaven$17K
- Robert SeabrookJackson$12K
- Joshua DibbleGulfport$9K
- Ryan McGaugheyJackson$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.