Mark Lassise, MD
Psychiatry · Mason City, IANPI 1023002508
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.6% of the total across 570 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 19 manufacturers reported payments, led by AbbVie at 27.5% of the total. Among psychiatry clinicians in IA 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 570 payments — averaging $13.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$2K
- Sunovion Pharmaceuticals Inc.$1K
- Otsuka America Pharmaceutical, Inc.$914
- Johnson & Johnson$711
- ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$652
- Lundbeck LLC$565
- plus $2K from 13 others
What the payments were for
- Food & beverage$7,750100%
- Education$290%
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(2 entities) | 204 | $2,140 |
| Sunovion Pharmaceuticals Inc. | 92 | $1,152 |
| Otsuka America Pharmaceutical, Inc. | 56 | $914 |
| Johnson & Johnson | 48 | $711 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 36 | $652 |
| Lundbeck LLC | 37 | $565 |
| Teva Pharmaceuticals USA, Inc. | 29 | $491 |
| Alkermes, Inc. | 21 | $327 |
| Neurocrine Biosciences, Inc. | 12 | $229 |
| Axsome Therapeutics, Inc. | 11 | $193 |
| Vanda Pharmaceuticals Inc. | 7 | $124 |
| Indivior Inc. | 6 | $104 |
| E.r. Squibb & Sons, L.L.C. | 3 | $50 |
| Ironshore Pharmaceuticals Inc. | 3 | $50 |
| Corium, LLC | 1 | $17 |
| Acadia Pharmaceuticals Inc | 1 | $16 |
| Collegium Pharmaceutical, Inc. | 1 | $16 |
| Tris Pharma Inc | 1 | $16 |
| Supernus Pharmaceuticals, Inc. | 1 | $15 |
How this compares
$7,779 in reported general payments places this provider in the 95th percentile of 245 psychiatry providers in Iowa.
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 |
|---|---|---|
| Aripiprazole | 42 | $1,756 |
| Quetiapine Fumarate | 66 | $892 |
| Olanzapine | 32 | $669 |
| Buspirone Hcl | 85 | $656 |
| Ziprasidone Hcl | 12 | $578 |
| Oxcarbazepine | 13 | $547 |
| Venlafaxine Hcl ErVenlafaxine Hcl | 51 | $542 |
| Mirtazapine | 13 | $392 |
| Trazodone Hcl | 58 | $303 |
| Escitalopram Oxalate | 31 | $284 |
| Bupropion Hcl SrBupropion Hcl | 22 | $222 |
| Benztropine Mesylate | 19 | $222 |
| Sertraline Hcl | 51 | $220 |
| Lamotrigine | 23 | $163 |
| Paroxetine Hcl | 14 | $162 |
Paid to pharmacies, not to this prescriber.
Other psychiatry in Mason City
- Rogerio RamosMason City$6K
- Corey ThompsonMason City$2K
- Charles JennischUrbandale$949K
- Manmohan SinghDes Moines$408K
- Jimmy MascaroOttumwa$361K
- Alan WhittersCedar Rapids$170K
- Donald BlackIowa City$19K
- William CoryellIowa City$18K
- Randall KavalierWest Des Moines$15K
- Dwight SchroederCedar Rapids$13K
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.