Ryan Buckley, MD
Allergy & Immunology · Littleton, CONPI 1346628138
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 73 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 17 manufacturers, the largest accounting for just 20.0% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $644 and has fallen 97.5% since, to $16 in 2025. That places this record below the midpoint for allergy & immunology clinicians in CO, where the typical reported total is $2,675.
Across 73 payments — averaging $22.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$322
- AstraZeneca$307
- Takeda Pharmaceuticals U.S.A., Inc.$222
- Grifols USA, LLC$125
- Teva Pharmaceuticals USA, Inc.$83
- Optinose US, Inc.$83
- plus $467 from 11 others
What the payments were for
- Food & beverage$1,609100%
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 |
|---|---|---|
| GSK | 19 | $322 |
| AstraZeneca | 9 | $307 |
| Takeda Pharmaceuticals U.S.A., Inc. | 13 | $222 |
| Grifols USA, LLC | 4 | $125 |
| Teva Pharmaceuticals USA, Inc. | 4 | $83 |
| Optinose US, Inc. | 4 | $83 |
| Sanofi | 3 | $63 |
| Genentech USA, Inc. | 3 | $61 |
| Biocryst US Sales Co., LLC | 2 | $52 |
| Pharming Healthcare, Inc. | 2 | $52 |
| Pfizer | 3 | $50 |
| Kaleo, Inc. | 2 | $46 |
| CSL Behring | 1 | $40 |
| Boehringer Ingelheim | 1 | $30 |
| Novartis | 1 | $25 |
| AbbVie | 1 | $25 |
| Amgen | 1 | $23 |
How this compares
$1,609 in reported general payments places this provider in the 40th percentile of 89 allergy & immunology providers in Colorado.
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 |
|---|---|---|
| Advair HfaFluticasone Propion/Salmeterol | 68 | $35,164 |
| SymbicortBudesonide/Formoterol Fumarate | 93 | $28,472 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 35 | $21,902 |
| Breo ElliptaFluticasone/Vilanterol | 30 | $12,167 |
| Spiriva RespimatTiotropium Bromide | 12 | $9,697 |
| Qvar RedihalerBeclomethasone Dipropionate | 24 | $9,499 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 53 | $8,138 |
| Arnuity ElliptaFluticasone Furoate | 13 | $6,196 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 139 | $3,479 |
| Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate | 16 | $2,401 |
| Ipratropium Bromide | 68 | $2,131 |
| Azelastine Hcl | 35 | $1,709 |
| Montelukast Sodium | 132 | $1,278 |
| Fluticasone Propionate | 21 | $448 |
| Triamcinolone Acetonide | 13 | $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 |
|---|---|---|
| GSKTrelegy Ellipta, Breo Ellipta, Arnuity Ellipta | $322 | $40,26578 claims |
| AstraZenecaSymbicort | $307 | $28,47293 claims |
| Boehringer IngelheimSpiriva Respimat | $30 | $9,69712 claims |
| Teva Pharmaceuticals USA, Inc.Qvar Redihaler | $83 | $9,49924 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 40th percentile of 89 allergy & immunology providers in Colorado.
Other allergy & immunology in Littleton
- Rohit KatialDenver$758K
- Nicole BarberisLakewood$351K
- Christopher WebberColorado Springs$350K
- Jeffrey RumbyrtLakewood$348K
- Eric CaplanColorado Springs$290K
- Eileen WangDenver$274K
- Donald LeungDenver$208K
- Robert NathanColorado Springs$130K
- Katherine McCormackLouisville$90K
- Flavia HoyteDenver$70K
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.