Michael Koriwchak, MD
Otolaryngology · Atlanta, GANPI 1720085756
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $4,018 of the $4,780 with a category attached, or 84.1%. 18 manufacturers reported payments, led by Aerin Medical Inc. at 46.2% of the total. Reporting peaked in 2024 at $1,948 and has fallen 53.5% since, to $907 in 2025.
Across 104 payments — averaging $45.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Aerin Medical Inc.$2K
- Regeneron Healthcare Solutions, Inc.$575
- Sanofi$558
- GSK$369
- Medtronic$271
- Stryker$245
- plus $555 from 12 others
What the payments were for
- Travel & lodging$76216%
- Food & beverage$4,01884%
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 |
|---|---|---|
| Aerin Medical Inc. | 23 | $2,208 |
| Regeneron Healthcare Solutions, Inc. | 20 | $575 |
| Sanofi | 13 | $558 |
| GSK | 15 | $369 |
| Medtronic(2 entities) | 4 | $271 |
| Stryker | 2 | $245 |
| Optinose US, Inc. | 10 | $198 |
| Kaleo, Inc. | 3 | $54 |
| ARS Pharmaceuticals Operations, Inc. | 2 | $51 |
| Neurent Medical Limited | 2 | $46 |
| Intersect ENT, Inc. | 1 | $38 |
| Cook Medical LLC | 2 | $35 |
| Alk-abello, Inc | 2 | $35 |
| Precigen, Inc. | 1 | $23 |
| Merck | 1 | $20 |
| Pentax Of America, Inc. | 1 | $20 |
| Checkpoint Surgical, Inc | 1 | $19 |
| Smith+Nephew | 1 | $14 |
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.
- VIVAER STYLUS$1,385
- RHINAER STYLUS$456
- NUVENT$168
- CLARIFIX$145
- DUPIXENT$125
- NUCALA$112
How this compares
$4,780 in reported general payments places this provider in the 85th percentile of 308 otolaryngology providers in Georgia.
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 |
|---|---|---|
| Azelastine Hcl | 359 | $7,530 |
| Lansoprazole | 259 | $6,902 |
| Breo ElliptaFluticasone/Vilanterol | 15 | $6,006 |
| Fluticasone Propionate | 377 | $4,644 |
| Ipratropium Bromide | 94 | $3,085 |
| Fluocinolone Acetonide Oil | 82 | $2,942 |
| Ofloxacin | 20 | $829 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 17 | $473 |
| Famotidine | 54 | $425 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 36 | $255 |
| Montelukast Sodium | 22 | $248 |
| Omeprazole | 20 | $177 |
| Mupirocin | 16 | $158 |
| Prednisone | 46 | $107 |
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 |
|---|---|---|
| GSKBreo Ellipta | $369 | $6,00615 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 85th percentile of 308 otolaryngology providers in Georgia.
Other otolaryngology in Atlanta
- Karen HoffmannAtlanta$223K
- Jose StolovitzkyAtlanta$81K
- Daniel CarothersAtlanta$8K
- Adam KleinAtlanta$8K
- Pradeep SinhaAtlanta$7K
- Kingsley ChinAtlanta$6K
- John SongAtlanta$6K
- James HamiltonAtlanta$5K
- Elizabeth ShawAtlanta$5K
- Gamwell RogersAtlanta$5K
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.