Stephanie Messina
Physician Assistant · Irvine, CANPI 1912202987
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 96.4% of the total across 309 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 38 manufacturers, the largest accounting for just 19.7% — the pattern of someone who eats at a lot of different presentations. Among physician assistant clinicians in CA 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 309 payments — averaging $23.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1K
- Neurocrine Biosciences, Inc.$776
- UCB, Inc.$508
- AstraZeneca$465
- Lilly USA, LLC$357
- Livanova USA, Inc.$346
- plus $3K from 32 others
What the payments were for
- Travel & lodging$2614%
- Food & beverage$7,07296%
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 |
|---|---|---|
| AbbVie | 77 | $1,446 |
| Neurocrine Biosciences, Inc. | 34 | $776 |
| UCB, Inc. | 16 | $508 |
| AstraZeneca(2 entities) | 19 | $465 |
| Lilly USA, LLC | 17 | $357 |
| Livanova USA, Inc. | 2 | $346 |
| SK Life Science, Inc. | 14 | $330 |
| CSL Behring | 10 | $283 |
| Merz Pharmaceuticals, LLC | 7 | $267 |
| Argenx US, Inc. | 8 | $240 |
| MDD US Operations, LLC | 9 | $203 |
| Lundbeck LLC | 10 | $195 |
| Takeda Pharmaceuticals U.S.A., Inc. | 7 | $172 |
| Pfizer | 7 | $168 |
| Amneal Pharmaceuticals LLC | 10 | $159 |
| Azurity Pharmaceuticals, Inc. | 8 | $151 |
| Eisai Inc. | 6 | $140 |
| Biogen | 6 | $131 |
| Acadia Pharmaceuticals Inc | 4 | $115 |
| Scilex Pharmaceuticals Inc. | 6 | $108 |
| Otsuka America Pharmaceutical, Inc. | 4 | $104 |
| Ipsen Biopharmaceuticals, Inc | 3 | $74 |
| Alnylam Pharmaceuticals Inc. | 3 | $72 |
| Johnson & Johnson | 3 | $63 |
| Medtronic | 1 | $60 |
| Jazz Pharmaceuticals Inc. | 3 | $53 |
| Octapharma USA, Inc. | 2 | $44 |
| Harmony Biosciences LLC | 1 | $44 |
| Tanabe Pharma America, Inc. | 2 | $40 |
| Microtransponder, Inc. | 2 | $39 |
| Axsome Therapeutics, Inc. | 1 | $33 |
| Acorda Therapeutics, Inc | 1 | $27 |
| Amgen | 1 | $23 |
| Impel Pharmaceuticals LLC | 1 | $22 |
| Novo Nordisk | 1 | $21 |
| Averitas Pharma Inc. | 1 | $19 |
| Forte Bio-pharma LLC | 1 | $18 |
| Teva Pharmaceuticals USA, 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.
- VNS Therapy$261
How this compares
$7,333 in reported general payments places this provider in the 95th percentile of 10,423 physician assistant providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Radicava OrsEdaravone | 11 | $153,244 |
| Emgality PenGalcanezumab-Gnlm | 72 | $65,525 |
| Memantine Hcl | 128 | $5,043 |
| Memantine Hcl ErMemantine Hcl | 14 | $2,226 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 77 | $2,221 |
| Megestrol Acetate | 20 | $1,746 |
| Divalproex Sodium | 17 | $1,496 |
| Lacosamide | 23 | $1,422 |
| Midodrine Hcl | 39 | $1,275 |
| Quetiapine Fumarate | 78 | $1,154 |
| Pramipexole DihydrochloridePramipexole Di-Hcl | 61 | $1,072 |
| Mirtazapine | 46 | $1,063 |
| Galantamine Hbr | 12 | $992 |
| Donepezil Hcl | 102 | $773 |
| Duloxetine Hcl | 29 | $735 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Irvine
- Andrea NguyenIrvine$1M
- Jisoo LeeIrvine$43K
- Mikhail AlperMadera$889K
- Erin JensenUpland$716K
- Franklin ClineSacramento$458K
- Carla CrespoMarina del Rey$297K
- Katherine OsakiEl Centro$274K
- Shawna JonesFountain Valley$266K
- Heather AustinSalinas$219K
- Andrea FoxStanford$172K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.