Mason McKee
Physician Assistant · Phoenix, AZNPI 1942949128
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.7% of the total across 380 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 28 manufacturers, the largest accounting for just 22.3% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2023 at $3,587 and has fallen 65.1% since, to $1,252 in 2025. Among physician assistant clinicians in AZ 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 380 payments — averaging $22.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- UCB, Inc.$2K
- AbbVie$2K
- Amgen$2K
- Pfizer$554
- Lilly USA, LLC$405
- Organon$351
- plus $2K from 22 others
What the payments were for
- Food & beverage$8,412100%
- Education$260%
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 |
|---|---|---|
| UCB, Inc. | 68 | $1,881 |
| AbbVie | 78 | $1,768 |
| Amgen(2 entities) | 99 | $1,758 |
| Pfizer | 27 | $554 |
| Lilly USA, LLC | 16 | $405 |
| Organon | 18 | $351 |
| Radius Health, Inc. | 11 | $248 |
| Boehringer Ingelheim | 11 | $232 |
| Sanofi | 3 | $195 |
| AstraZeneca(2 entities) | 11 | $181 |
| Mallinckrodt Hospital Products Inc. | 6 | $143 |
| Kyowa Kirin, Inc. | 4 | $102 |
| Fresenius Kabi USA, LLC | 3 | $84 |
| Octapharma USA, Inc. | 2 | $69 |
| Celltrion USA Inc. | 3 | $64 |
| Sandoz | 3 | $60 |
| Almatica Pharma LLC | 2 | $46 |
| Aurinia Pharma U.S., Inc. | 2 | $45 |
| Genentech USA, Inc. | 2 | $41 |
| E.r. Squibb & Sons, L.L.C. | 2 | $35 |
| Ferring Pharmaceuticals Inc. | 2 | $34 |
| Kiniksa Pharmaceuticals International, PLC | 1 | $28 |
| Alvogen Inc | 1 | $25 |
| Stryker | 1 | $24 |
| Actelion Pharmaceuticals US, Inc. | 1 | $18 |
| Johnson & Johnson | 1 | $17 |
| GSK | 1 | $16 |
| Teva Pharmaceuticals USA, Inc. | 1 | $14 |
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
$8,438 in reported general payments places this provider in the 95th percentile of 2,888 physician assistant providers in Arizona.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Hydroxychloroquine Sulfate | 388 | $17,670 |
| MethotrexateMethotrexate Sodium | 307 | $7,409 |
| Mycophenolate Mofetil | 34 | $6,697 |
| Pilocarpine Hcl | 58 | $6,560 |
| Leflunomide | 62 | $4,614 |
| Celecoxib | 51 | $4,372 |
| Gabapentin | 167 | $4,301 |
| Duloxetine Hcl | 168 | $3,771 |
| Sulfasalazine | 95 | $3,306 |
| Prednisone | 478 | $2,986 |
| Sulfasalazine DrSulfasalazine | 43 | $1,953 |
| Nabumetone | 53 | $1,562 |
| Azathioprine | 38 | $1,413 |
| Colchicine | 15 | $1,283 |
| Methylprednisolone | 32 | $982 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Phoenix
- Katherine MinorPhoenix$76K
- Micah LasleyPhoenix$52K
- Thomas SirrinePhoenix$37K
- Karla HortonPhoenix$36K
- Larissa AnthonyPhoenix$32K
- Tana FrumentoPhoenix$25K
- Rosemary SrisukPhoenix$17K
- John DorseyPhoenix$17K
- Kendall SmithPhoenix$16K
- Theresa PinderPhoenix$16K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.