Kaifan Zhao
Gerontology · Duarte, CANPI 1285001628
Payments from drug & device makers
Across 9 payments — averaging $31.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Redhill Biopharma Inc.$71
- Emergent Biosolutions Inc.$45
- GRT US Holding, Inc.$45
- AbbVie$36
- Bayer$24
- Amgen$17
- plus $45 from 3 others
What the payments were for
- Food & beverage$282100%
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 |
|---|---|---|
| Redhill Biopharma Inc. | 1 | $71 |
| Emergent Biosolutions Inc. | 1 | $45 |
| GRT US Holding, Inc. | 1 | $45 |
| AbbVie | 1 | $36 |
| Bayer | 1 | $24 |
| Amgen | 1 | $17 |
| Incyte Corporation | 1 | $17 |
| Seagen Inc. | 1 | $15 |
| Merck | 1 | $14 |
How this compares
$282 in reported general payments places this provider in the 45th percentile of 348 gerontology 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 |
|---|---|---|
| OxycontinOxycodone Hcl | 32 | $43,074 |
| Xtampza ErOxycodone Myristate | 26 | $19,611 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 84 | $3,765 |
| Fentanyl | 40 | $3,708 |
| Oxycodone Hcl | 111 | $3,021 |
| Gabapentin | 100 | $2,109 |
| Hydromorphone Hcl | 45 | $1,868 |
| Morphine Sulfate ErMorphine Sulfate | 53 | $1,308 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 31 | $1,283 |
| Methadone Hcl | 50 | $1,054 |
| Pregabalin | 55 | $972 |
| Morphine Sulfate | 16 | $769 |
| Lactulose | 34 | $460 |
| Methylphenidate Hcl | 36 | $408 |
| Baclofen | 16 | $407 |
Paid to pharmacies, not to this prescriber.
Other gerontology in Duarte
- Maria MottaDuarte$23K
- Anne Marie de Joya ReeveDuarte$11K
- Ej Sterrin HernandezDuarte$3K
- Leana ChienDuarte$2K
- Brian BowmanDuarte$2K
- Kimberly LuiDuarte$2K
- Lovely IsraelSanta Monica$95K
- Leslie TarlowLos Angeles$58K
- Christine PartamianPorter Ranch$41K
- Elsa Pineda-FloresLos Angeles$24K
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.