Walter Willoughby, MD
Pulmonary Disease · Las Vegas, NVNPI 1376592477
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.4% of the total across 519 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 32 manufacturers reported payments, led by AstraZeneca at 31.8% of the total.
Across 519 payments — averaging $19.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$3K
- GSK$1K
- Boehringer Ingelheim$1K
- Mylan Specialty L.p.$832
- Amgen$823
- Regeneron Healthcare Solutions, Inc.$532
- plus $2K from 26 others
What the payments were for
- Food & beverage$9,95398%
- Education$1592%
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 |
|---|---|---|
| AstraZeneca | 108 | $3,213 |
| GSK | 68 | $1,212 |
| Boehringer Ingelheim | 76 | $1,033 |
| Mylan Specialty L.p. | 49 | $832 |
| Amgen | 50 | $823 |
| Regeneron Healthcare Solutions, Inc. | 24 | $532 |
| Genentech USA, Inc. | 39 | $394 |
| Sanofi | 20 | $381 |
| Axsome Therapeutics, Inc. | 14 | $259 |
| Philips North America LLC | 7 | $197 |
| Grifols USA, LLC | 10 | $191 |
| Insmed, Inc. | 7 | $141 |
| Paratek Pharmaceuticals, Inc. | 6 | $122 |
| Circassia Inc. | 9 | $117 |
| Sanofi-aventis U.S. LLC | 1 | $100 |
| Jazz Pharmaceuticals Inc. | 5 | $77 |
| Verona Pharma, Inc. | 3 | $66 |
| Actelion Pharmaceuticals US, Inc. | 3 | $60 |
| Electromed, Inc. | 5 | $49 |
| Pfizer | 1 | $33 |
| Merck | 1 | $33 |
| Harmony Biosciences LLC | 1 | $33 |
| Inogen, Inc. | 2 | $27 |
| Baxter Healthcare | 2 | $26 |
| United Therapeutics Corporation | 1 | $25 |
| Resmed Corp | 1 | $21 |
| Liquidia Technologies, Inc. | 1 | $21 |
| Shire North American Group Inc | 1 | $20 |
| Pulmonx Corporation | 1 | $19 |
| Mallinckrodt Hospital Products Inc. | 1 | $19 |
| ANI Pharmaceuticals, Inc. | 1 | $19 |
| Itamar Medical Inc | 1 | $17 |
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
$10,112 in reported general payments places this provider in the 80th percentile of 84 pulmonary disease providers in Nevada.
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 | 98 | $1,304,729 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 209 | $190,983 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 187 | $152,006 |
| Dupixent PenDupilumab | 26 | $99,183 |
| Pirfenidone | 13 | $74,453 |
| Breo ElliptaFluticasone/Vilanterol | 87 | $46,602 |
| Spiriva RespimatTiotropium Bromide | 61 | $43,279 |
| SymbicortBudesonide/Formoterol Fumarate | 117 | $36,102 |
| Anoro ElliptaUmeclidinium Brm/Vilanterol Tr | 52 | $30,609 |
| BreynaBudesonide/Formoterol Fumarate | 75 | $18,014 |
| Bevespi AerosphereGlycopyrrolate/Formoterol Fum | 25 | $13,030 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 67 | $13,018 |
| Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate | 48 | $11,347 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 341 | $6,988 |
| Levalbuterol Tartrate HfaLevalbuterol Tartrate | 98 | $6,671 |
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, Spiriva Respimat | $1,033 | $1,348,008159 claims |
| AstraZenecaBreztri Aerosphere, Symbicort, Bevespi Aerosphere | $3,213 | $240,115351 claims |
| GSKTrelegy Ellipta, Breo Ellipta, Anoro Ellipta, Incruse Ellipta | $1,212 | $233,457338 claims |
| PfizerEliquis, Paxlovid | $33 | $9,43429 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 84 pulmonary disease providers in Nevada.
Other pulmonary disease in Las Vegas
- Arthur RomeroLas Vegas$310K
- Lloyd DelmundoLas Vegas$150K
- Naresh SinghLas Vegas$111K
- Abhishek KumarLas Vegas$74K
- Jerome HruskaLas Vegas$72K
- Vishisht MehtaLas Vegas$22K
- Kamran KhanLas Vegas$17K
- John WojcikLas Vegas$14K
- Robert LampertLas Vegas$8K
- Rachakonda PrabhuLas Vegas$7K
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.