Kristina Riser
Psychiatric/Mental Health · Knoxville, TNNPI 1083216071
Payments from drug & device makers
Across 139 payments — averaging $20.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Otsuka America Pharmaceutical, Inc.$465
- ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$433
- AbbVie$336
- Vanda Pharmaceuticals Inc.$313
- Alkermes, Inc.$205
- Axsome Therapeutics, Inc.$196
- plus $861 from 12 others
What the payments were for
- Food & beverage$2,802100%
- Education$60%
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.
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.
- ABILIFY MAINTENA$244
- ABILIFY ASIMTUFII$244
- Auvelity$122
- VRAYLAR$119
How this compares
$2,809 in reported general payments places this provider in the 80th percentile of 1,167 psychiatric/mental health providers in Tennessee.
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 |
|---|---|---|
| IngrezzaValbenazine Tosylate | 13 | $102,630 |
| FanaptIloperidone | 23 | $61,034 |
| VraylarCariprazine Hcl | 36 | $55,950 |
| Invega SustennaPaliperidone Palmitate | 15 | $52,622 |
| Abilify MaintenaAripiprazole | 12 | $35,746 |
| TrintellixVortioxetine Hydrobromide | 17 | $11,571 |
| Aripiprazole | 123 | $9,236 |
| Lurasidone Hcl | 55 | $7,486 |
| CymbaltaDuloxetine Hcl | 11 | $5,928 |
| Buspirone Hcl | 200 | $3,871 |
| Trazodone Hcl | 180 | $3,637 |
| Bupropion XlBupropion Hcl | 93 | $3,478 |
| Desvenlafaxine Succinate ErDesvenlafaxine Succinate | 57 | $2,938 |
| Paliperidone ErPaliperidone | 27 | $2,931 |
| Oxcarbazepine | 51 | $2,627 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Neurocrine Biosciences, Inc.Ingrezza | $46 | $102,63013 claims |
| Vanda Pharmaceuticals Inc.Fanapt | $313 | $61,03423 claims |
| AbbVieVraylar | $336 | $55,95036 claims |
| Johnson & JohnsonInvega Sustenna | $103 | $52,62215 claims |
| Otsuka America Pharmaceutical, Inc.Abilify Maintena | $465 | $35,74612 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Trintellix | $24 | $11,57117 claims |
| Lilly USA, LLCCymbalta, Olanzapine | $19 | $6,73871 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 1,167 psychiatric/mental health providers in Tennessee.
Other psychiatric/mental health in Knoxville
- Katherine SullivanKnoxville$17K
- Melissa McCarterKnoxville$13K
- Melissa SpearsKnoxville$12K
- Sarah LordKnoxville$10K
- Chenoa ShenandoahKnoxville$10K
- Sarah BannisterKnoxville$9K
- Brittani ArrowoodKnoxville$9K
- Lori HestandKnoxville$8K
- Lindsey WondoloskiKnoxville$8K
- Justin MynattKnoxville$8K
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.