Iryna Singh
Nurse Practitioner · Los Angeles, CANPI 1831659408
Payments from drug & device makers
Across 74 payments — averaging $38.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$432
- Seagen Inc.$366
- Puma Biotechnology, Inc.$284
- Amgen$209
- Merck$198
- Gilead$182
- plus $1K from 16 others
What the payments were for
- Food & beverage$2,830100%
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 |
|---|---|---|
| AstraZeneca | 12 | $432 |
| Seagen Inc. | 7 | $366 |
| Puma Biotechnology, Inc. | 4 | $284 |
| Amgen | 6 | $209 |
| Merck | 4 | $198 |
| Gilead | 4 | $182 |
| Delcath Systems | 1 | $175 |
| Daiichi Sankyo Inc. | 3 | $164 |
| Bayer | 3 | $125 |
| Pfizer | 3 | $123 |
| Johnson & Johnson | 1 | $115 |
| Array Biopharma Inc | 7 | $103 |
| Genentech USA, Inc. | 4 | $78 |
| Novartis | 3 | $61 |
| Heron Therapeutics, Inc. | 4 | $42 |
| Eisai Inc. | 2 | $36 |
| GE HealthCare | 1 | $30 |
| EMD Serono, Inc. | 1 | $23 |
| Novocure Inc. | 1 | $22 |
| Incyte Corporation | 1 | $21 |
| Mylan Institutional Inc. | 1 | $20 |
| Foundation Medicine, Inc. | 1 | $20 |
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
$2,830 in reported general payments places this provider in the 90th percentile of 6,779 nurse practitioner providers in California.
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 |
|---|---|---|
| BraftoviEncorafenib | 23 | $350,225 |
| MektoviBinimetinib | 23 | $343,594 |
| TasignaNilotinib Hcl | 13 | $259,087 |
| XareltoRivaroxaban | 18 | $11,532 |
| Hydrocortisone | 81 | $1,562 |
| Gabapentin | 25 | $333 |
| Prednisone | 61 | $267 |
| Sodium Chloride0.9 % Sodium Chloride | 21 | $237 |
| Omeprazole | 13 | $101 |
| Clonazepam | 18 | $91 |
| Methylphenidate Hcl | 12 | $77 |
| Levothyroxine Sodium | 20 | $39 |
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 |
|---|---|---|
| Array Biopharma IncBraftovi, Mektovi | $103 | $693,81946 claims |
| NovartisTasigna | $61 | $259,08713 claims |
| Johnson & JohnsonXarelto | $115 | $11,53218 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 90th percentile of 6,779 nurse practitioner providers in California.
Other nurse practitioner in Los Angeles
- Kristin HorwoodLos Angeles$99K
- Yunying ChenLos Angeles$80K
- Lauren BristowLos Angeles$46K
- Rhonda HewittStanford$917K
- Linda TrinhIrvine$899K
- Denise SinagaNorthridge$728K
- Debbie TaySanta Monica$642K
- Joe GorelickCampbell$638K
- Lynsey LakinArcadia$540K
- Kelly ChoiRancho Cucamonga$483K
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.