Zhangning Chen, MD
Internal Medicine · Little Rock, ARNPI 1235660564
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (42.7%), food and beverage and speaking fees — rather than concentrated in one kind of arrangement. 38 manufacturers reported payments, led by Eisai Inc. at 32.2% of the total. 2025 is the largest year on record at $7,021, more than ten times the $184 reported in 2023. Among internal medicine clinicians in AR 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 153 payments — averaging $51.15 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eisai Inc.$3K
- Johnson & Johnson$1K
- Avyxa Pharma, LLC$1K
- Caris MPI, Inc.$278
- Pfizer$239
- Novartis$200
- plus $2K from 32 others
What the payments were for
- Consulting fees$3,34043%
- Speaking & faculty fees$1,00013%
- Food & beverage$3,18941%
- Education$2974%
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 |
|---|---|---|
| Eisai Inc. | 7 | $2,518 |
| Johnson & Johnson | 11 | $1,168 |
| Avyxa Pharma, LLC | 1 | $1,000 |
| Caris MPI, Inc. | 5 | $278 |
| Pfizer | 14 | $239 |
| Novartis | 11 | $200 |
| Astellas Pharma US Inc | 7 | $199 |
| AstraZeneca | 11 | $196 |
| Incyte Corporation | 5 | $174 |
| Daiichi Sankyo Inc. | 8 | $168 |
| AbbVie | 9 | $154 |
| Exelixis Inc. | 8 | $153 |
| Merck | 7 | $149 |
| Gilead(2 entities) | 3 | $131 |
| Geron Corporation | 1 | $123 |
| Sanofi | 4 | $99 |
| Bristol Myers Squibb | 6 | $94 |
| Regeneron Healthcare Solutions, Inc. | 4 | $92 |
| Myriad Genetic Laboratories, Inc. | 2 | $91 |
| Seagen Inc. | 1 | $79 |
| Legend Biotech USA Inc. | 3 | $57 |
| GSK | 3 | $57 |
| Ipsen Biopharmaceuticals, Inc | 3 | $48 |
| Beone Medicines USA, Inc. | 2 | $42 |
| EMD Serono, Inc. | 2 | $38 |
| Pharmacosmos Therapeutics Inc. | 2 | $38 |
| Jazz Pharmaceuticals Inc. | 2 | $31 |
| Sobi, Inc | 1 | $30 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $23 |
| Bayer | 1 | $21 |
| Karyopharm Therapeutics Inc. | 1 | $21 |
| Genentech USA, Inc. | 1 | $19 |
| AVEO Pharmaceuticals, Inc. | 1 | $18 |
| Azurity Pharmaceuticals, Inc. | 1 | $18 |
| ADC Therapeutics America, Inc. | 1 | $17 |
| Recordati_rare_diseases_inc. | 1 | $16 |
| Spectrum Pharmaceuticals Inc. | 1 | $14 |
| Pharmaessentia USA Corporation | 1 | $14 |
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.
- LENVIMA$2,400
- DARZALEX$940
- RYTELO$123
- MI CANCER SEEK$119
How this compares
$7,827 in reported general payments places this provider in the 95th percentile of 614 internal medicine providers in Arkansas.
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.
Other internal medicine in Little Rock
- Aaron StrobelLittle Rock$32K
- Jeremy DavisLittle Rock$17K
- Ritesh RampureLittle Rock$13K
- Milton RoachLittle Rock$12K
- Michael CloudLittle Rock$10K
- Saul Rios HerreraLittle Rock$8K
- Russell RoarkLittle Rock$7K
- Arpana EdalaLittle Rock$6K
- Srikanth VallurupalliLittle Rock$5K
- Devendra PatelLittle Rock$5K
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.