Matthew Oswalt, MD
Allergy & Immunology · Tupelo, MSNPI 1679784599
Payments from drug & device makers
Across 633 payments — averaging $20.64 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- CSL Behring$2K
- AstraZeneca$2K
- Sanofi$1K
- GSK$1K
- Genentech USA, Inc.$1K
- Amgen$1K
- plus $4K from 24 others
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 |
|---|---|---|
| CSL Behring | 85 | $1,927 |
| AstraZeneca | 63 | $1,774 |
| Sanofi | 46 | $1,417 |
| GSK | 83 | $1,350 |
| Genentech USA, Inc. | 65 | $1,315 |
| Amgen | 73 | $1,044 |
| Novartis | 41 | $778 |
| Regeneron Healthcare Solutions, Inc. | 26 | $763 |
| Pfizer | 24 | $407 |
| Grifols USA, LLC | 17 | $282 |
| Biocryst US Sales Co., LLC | 11 | $243 |
| Boehringer Ingelheim | 15 | $237 |
| Takeda Pharmaceuticals U.S.A., Inc. | 12 | $221 |
| Pharming Healthcare, Inc. | 10 | $217 |
| LEO Pharma Inc. | 9 | $196 |
| Teva Pharmaceuticals USA, Inc. | 14 | $172 |
| Merck | 12 | $142 |
| Sanofi-aventis U.S. LLC | 1 | $99 |
| Lilly USA, LLC | 3 | $71 |
| ARS Pharmaceuticals Operations, Inc. | 3 | $51 |
| Organon | 5 | $49 |
| Boston Scientific | 2 | $48 |
| Ionis Pharmaceuticals, Inc. | 2 | $46 |
| Galderma Laboratories, L.p. | 2 | $43 |
| USWM, LLC | 2 | $38 |
| Kaleo, Inc. | 2 | $38 |
| Biocryst Pharmaceuticals, Inc. | 2 | $38 |
| Blueprint Medicines Corporation | 1 | $25 |
| Shire North American Group Inc | 1 | $19 |
| ADMA Biomanufacturing LLC | 1 | $17 |
How this compares
$13,067 in reported general payments places this provider in the 60th percentile of 28 allergy & immunology 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 allergy & immunology in Tupelo
- Karen MaltbyTupelo$12K
- Gailen MarshallJackson$266K
- Todd AdkinsJackson$226K
- Patricia StewartMadison$215K
- Daniel VenarskeJackson$156K
- Dexter WalcottJackson$154K
- Chelle WilhelmJackson$61K
- Mark MurrayDiberville$41K
- Stephen LeblancMeridian$34K
- Jennifer OlivierPicayune$24K
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.