David Ermer
Psychiatry · Sioux Falls, SDNPI 1205881331
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 189 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 26 manufacturers, the largest accounting for just 13.1% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $806 and has fallen 84.2% since, to $127 in 2025.
Across 189 payments — averaging $15.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Otsuka America Pharmaceutical, Inc.$386
- Johnson & Johnson$362
- Corium, LLC$227
- Jazz Pharmaceuticals Inc.$196
- Lundbeck LLC$195
- Alkermes, Inc.$194
- plus $1K from 20 others
What the payments were for
- Food & beverage$2,960100%
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.
How this compares
$2,960 in reported general payments places this provider in the 85th percentile of 79 psychiatry providers in South Dakota.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Atomoxetine Hcl | 17 | $753 |
| Sertraline Hcl | 23 | $193 |
| Buspirone Hcl | 26 | $186 |
| Risperidone | 14 | $124 |
| Fluoxetine Hcl | 31 | $110 |
| Escitalopram Oxalate | 15 | $83 |
Paid to pharmacies, not to this prescriber.
Other psychiatry in Sioux Falls
- James ChiuSioux Falls$1.7M
- Hari KannanSioux Falls$913K
- Rajesh SinghSioux Falls$393K
- Anthony VacaSioux Falls$15K
- Mackenzie MertzSioux Falls$4K
- Georgiana NussSioux Falls$4K
- Sandra Peynado RojasSioux Falls$3K
- Clay PavlisSioux Falls$2K
- William FullerSioux Falls$2K
- Xiaofan LiSioux Falls$2K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.