William Zweig, MD
Pulmonary Disease · Saint Louis, MONPI 1043201205
Payments from drug & device makers
Across 999 payments — averaging $18.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$3K
- AstraZeneca$3K
- Boehringer Ingelheim$2K
- Sanofi$1K
- Regeneron Healthcare Solutions, Inc.$889
- Insmed, Inc.$870
- plus $8K from 47 others
What the payments were for
- Food & beverage$18,10797%
- Education$5983%
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.
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
$18,706 in reported general payments places this provider in the 80th percentile of 295 pulmonary disease providers in Missouri.
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 |
|---|---|---|
| OfevNintedanib Esylate | 83 | $1,056,766 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 422 | $331,937 |
| Tyvaso DpiTreprostinil | 13 | $307,580 |
| NucalaMepolizumab | 58 | $230,013 |
| WakixPitolisant Hcl | 12 | $176,092 |
| Anoro ElliptaUmeclidinium Brm/Vilanterol Tr | 199 | $107,830 |
| Breo ElliptaFluticasone/Vilanterol | 228 | $105,693 |
| XolairOmalizumab | 24 | $84,792 |
| Dupixent PenDupilumab | 13 | $53,654 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 63 | $46,835 |
| Stiolto RespimatTiotropium Br/Olodaterol Hcl | 40 | $24,771 |
| Incruse ElliptaUmeclidinium Bromide | 37 | $17,883 |
| Spiriva RespimatTiotropium Bromide | 22 | $15,791 |
| Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate | 55 | $12,640 |
| EliquisApixaban | 11 | $10,731 |
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 |
|---|---|---|
| Boehringer IngelheimOfev, Stiolto Respimat, Spiriva Respimat | $2,050 | $1,097,328145 claims |
| GSKTrelegy Ellipta, Nucala, Anoro Ellipta, Breo Ellipta, Incruse Ellipta | $2,844 | $793,356944 claims |
| Harmony Biosciences LLCWakix | $373 | $176,09212 claims |
| AstraZenecaBreztri Aerosphere, Symbicort, Bevespi Aerosphere | $2,691 | $62,107109 claims |
| PfizerEliquis | $80 | $10,73111 claims |
| SandozEnoxaparin Sodium | $22 | $8,67812 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 295 pulmonary disease providers in Missouri.
Other pulmonary disease in Saint Louis
- Murali ChakinalaSaint Louis$2.4M
- Joseph OjileSaint Louis$2.1M
- Jeffrey HarrisSaint Louis$1.1M
- Kaharu SuminoSaint Louis$1.1M
- Tonya RussellSaint Louis$1M
- Alexander ChenSaint Louis$951K
- Daniel RosenbluthSaint Louis$903K
- Derek ByersSaint Louis$835K
- Jeffrey AtkinsonSaint Louis$604K
- James KringsSaint Louis$505K
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.