John Mazur, MD
Pulmonary Disease · Great Falls, MTNPI 1659364651
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (42.3%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. 35 manufacturers reported payments, led by Intuitive Surgical at 46.7% of the total. 2025 is the largest year on record at $9,052, 7.9 times the $1,149 reported in 2019. Among pulmonary disease clinicians in MT with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 296 payments — averaging $59.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$8K
- Pulmonx Corporation$3K
- AstraZeneca$1K
- Actelion Pharmaceuticals US, Inc.$966
- GSK$795
- Mallinckrodt Hospital Products Inc.$454
- plus $3K from 29 others
What the payments were for
- Travel & lodging$3,83222%
- Food & beverage$6,28336%
- Education$7,41542%
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 |
|---|---|---|
| Intuitive Surgical | 10 | $8,193 |
| Pulmonx Corporation | 9 | $3,088 |
| AstraZeneca | 42 | $1,183 |
| Actelion Pharmaceuticals US, Inc. | 33 | $966 |
| GSK | 39 | $795 |
| Mallinckrodt Hospital Products Inc. | 12 | $454 |
| Merck | 16 | $413 |
| Boehringer Ingelheim | 16 | $316 |
| Mylan Specialty L.p. | 13 | $282 |
| Novartis | 16 | $262 |
| Bayer | 8 | $162 |
| Insmed, Inc. | 7 | $156 |
| Grifols USA, LLC | 10 | $149 |
| Sanofi | 3 | $133 |
| Harmony Biosciences LLC | 6 | $108 |
| United Therapeutics Corporation | 7 | $103 |
| Johnson & Johnson(2 entities) | 8 | $101 |
| Genentech USA, Inc. | 6 | $91 |
| Amgen | 5 | $71 |
| Medtronic(2 entities) | 3 | $71 |
| Sunovion Pharmaceuticals Inc. | 5 | $61 |
| Regeneron Healthcare Solutions, Inc. | 3 | $59 |
| Philips North America LLC | 1 | $43 |
| Mallinckrodt Enterprises LLC | 3 | $43 |
| Covidien LP | 3 | $40 |
| Biodelivery Sciences International, Inc. | 2 | $30 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $28 |
| Advanced Respiratory, Inc | 1 | $22 |
| Veran Medical Technologies, Inc. | 2 | $20 |
| Pfizer | 1 | $18 |
| Lilly USA, LLC | 1 | $16 |
| Lantheus Medical Imaging, Inc. | 1 | $15 |
| Teva Pharmaceuticals USA, Inc. | 1 | $13 |
| E.r. Squibb & Sons, L.L.C. | 1 | $13 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $12 |
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.
- Da Vinci Surgical System$7,964
- CHARTIS CATHETER$2,777
- PULMONX CHARTIS TABLET CONSOLE$2,777
- ZEPHYR ENDOBRONCHIAL VALVE$2,777
- ZEPHYR DELIVERY CATHETER$2,777
- VERQUVO$240
- UPTRAVI$125
- OPSUMIT$125
- FASENRA$125
- DUPIXENT$104
How this compares
$17,530 in reported general payments places this provider in the 95th percentile of 43 pulmonary disease providers in Montana.
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 |
|---|---|---|
| OpsumitMacitentan | 46 | $584,329 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 299 | $269,913 |
| Stiolto RespimatTiotropium Br/Olodaterol Hcl | 226 | $138,606 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 160 | $115,157 |
| Breo ElliptaFluticasone/Vilanterol | 142 | $81,760 |
| Spiriva RespimatTiotropium Bromide | 97 | $64,159 |
| Dupixent PenDupilumab | 14 | $54,842 |
| Pirfenidone | 52 | $54,817 |
| Anoro ElliptaUmeclidinium Brm/Vilanterol Tr | 95 | $52,857 |
| Advair HfaFluticasone Propion/Salmeterol | 98 | $37,330 |
| DuleraMometasone/Formoterol | 45 | $15,200 |
| SymbicortBudesonide/Formoterol Fumarate | 27 | $13,098 |
| EliquisApixaban | 19 | $10,629 |
| Arnuity ElliptaFluticasone Furoate | 39 | $9,010 |
| Bevespi AerosphereGlycopyrrolate/Formoterol Fum | 15 | $7,964 |
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 |
|---|---|---|
| Actelion Pharmaceuticals US, Inc.Opsumit | $966 | $584,32946 claims |
| GSKTrelegy Ellipta, Breo Ellipta, Anoro Ellipta, Arnuity Ellipta, Incruse Ellipta | $795 | $417,494587 claims |
| Boehringer IngelheimStiolto Respimat, Spiriva Respimat | $316 | $202,765323 claims |
| AstraZenecaBreztri Aerosphere, Symbicort, Bevespi Aerosphere | $1,183 | $136,219202 claims |
| MerckDulera | $413 | $15,20045 claims |
| PfizerEliquis | $18 | $10,62919 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 95th percentile of 43 pulmonary disease providers in Montana.
Other pulmonary disease in Great Falls
- Megan SiskGreat Falls$20K
- Gabor VarjuGreat Falls$10K
- Merhala BalasubramaniamGreat Falls$1K
- Robert GrasseschiGreat Falls$458
- Sheela AhmedGreat Falls$158
- Sean DowGreat Falls$20
- Richard KearleyGreat Falls$16
- William KrauseGreat Falls$0
- Gregory LemenseBozeman$39K
- Bethany WeilerKalispell$14K
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.