John Chastain, MD
Otolaryngology · Tucson, AZNPI 1801915715
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $3,075 of the $4,382 with a category attached, or 70.2%. 22 manufacturers reported payments, led by Aerin Medical Inc. at 47.3% of the total. 2025 is the largest year on record at $2,217, 6.4 times the $344 reported in 2019.
Across 110 payments — averaging $39.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Aerin Medical Inc.$2K
- Stryker$649
- Sanofi$421
- GSK$291
- Regeneron Healthcare Solutions, Inc.$210
- Optinose US, Inc.$173
- plus $564 from 16 others
What the payments were for
- Consulting fees$1002%
- Travel & lodging$1,11625%
- Food & beverage$3,07570%
- Education$912%
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. | 25 | $2,074 |
| Stryker | 12 | $649 |
| Sanofi | 20 | $421 |
| GSK | 16 | $291 |
| Regeneron Healthcare Solutions, Inc. | 6 | $210 |
| Optinose US, Inc. | 9 | $173 |
| Medtronic | 3 | $113 |
| AstraZeneca | 1 | $84 |
| Carestream Dental, LLC | 2 | $62 |
| Amgen | 2 | $47 |
| Kaleo, Inc. | 2 | $38 |
| Davol Inc. | 2 | $34 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $32 |
| Novartis | 1 | $25 |
| Merck | 1 | $23 |
| Neurent Medical Limited | 1 | $21 |
| Getinge USA Sales, LLC | 1 | $16 |
| Acclarent, Inc | 1 | $16 |
| Integra Lifesciences Corporation | 1 | $15 |
| Boston Scientific | 1 | $13 |
| Intersect ENT, Inc. | 1 | $13 |
| Upsher-smith Laboratories LLC | 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.
How this compares
$4,382 in reported general payments places this provider in the 80th percentile of 150 otolaryngology providers in Arizona.
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 |
|---|---|---|
| Dupixent SyringeDupilumab | 13 | $57,277 |
| Ipratropium Bromide | 217 | $9,540 |
| Epinephrine | 11 | $2,044 |
| Fluticasone Propionate | 90 | $1,691 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 87 | $1,325 |
| Omeprazole | 55 | $1,004 |
| Montelukast Sodium | 100 | $913 |
| Mupirocin | 60 | $872 |
| Famotidine | 43 | $611 |
| Doxycycline Hyclate | 41 | $540 |
| Azelastine Hcl | 15 | $511 |
| Methylprednisolone | 65 | $467 |
| Fluconazole | 12 | $372 |
| Ofloxacin | 11 | $276 |
| Ciprofloxacin Hcl | 16 | $257 |
Paid to pharmacies, not to this prescriber.
Other otolaryngology in Tucson
- Eugene ChangTucson$44K
- Shethal BearellyTucson$11K
- Afshin EmamiTucson$8K
- Matthew GroysmanTucson$6K
- Adam RayTucson$5K
- Christopher leTucson$5K
- Robert DeanTucson$4K
- David HuTucson$4K
- Claire GleadhillTucson$3K
- Austin LeverTucson$3K
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.