Mark Lew, MD
Neurology · Los Angeles, CANPI 1578507505
Payments from drug & device makers
Across 479 payments — averaging $1269.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- UCB SA$147K
- MDD US Operations, LLC$136K
- Neurocrine Biosciences, Inc.$91K
- Kyowa Kirin, Inc.$81K
- Acorda Therapeutics, Inc$71K
- Acadia Pharmaceuticals Inc$23K
- plus $59K from 14 others
Across 2 payments — averaging $2532.57 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- H. Lundbeck A S$5K
What the payments were for
- Consulting fees$129,14829%
- Speaking & faculty fees$278,29162%
- Travel & lodging$29,8167%
- Food & beverage$13,2033%
- Education$10%
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 |
|---|---|---|
| UCB SA | 4 | $146,833 |
| MDD US Operations, LLC | 201 | $136,242 |
| Neurocrine Biosciences, Inc. | 72 | $90,791 |
| Kyowa Kirin, Inc. | 57 | $81,465 |
| Acorda Therapeutics, Inc | 37 | $71,195 |
| Acadia Pharmaceuticals Inc | 26 | $22,731 |
| Sunovion Pharmaceuticals Inc. | 15 | $14,458 |
| Jazz Pharmaceuticals Inc. | 31 | $13,668 |
| Adamas Pharmaceuticals, Inc. | 6 | $7,360 |
| AbbVie(2 entities) | 10 | $7,113 |
| Amneal Pharmaceuticals LLC | 4 | $6,672 |
| Merz Pharmaceuticals, LLC | 1 | $3,331 |
| Lundbeck LLC | 1 | $2,000 |
| H. Lundbeck A S | 2 | $1,534 |
| Global Kinetics USA Corporation | 1 | $1,500 |
| Sumitomo Pharma America, Inc. | 1 | $625 |
| Supernus Pharmaceuticals, Inc. | 2 | $220 |
| Sanofi Pasteur Inc. | 6 | $142 |
| Teva Pharmaceuticals USA, Inc. | 1 | $16 |
| Travere Therapeutics, Inc. | 1 | $1 |
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
$607,898 in reported general payments places this provider in the 95th percentile of 1,996 neurology 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 |
|---|---|---|
| NuplazidPimavanserin Tartrate | 22 | $157,661 |
| RytaryCarbidopa/Levodopa | 109 | $152,177 |
| GocovriAmantadine Hcl | 26 | $85,776 |
| Rasagiline Mesylate | 235 | $63,737 |
| Carbidopa-LevodopaCarbidopa/Levodopa | 448 | $21,103 |
| Entacapone | 52 | $12,183 |
| Carbidopa-Levodopa-EntacaponeCarbidopa/Levodopa/Entacapone | 19 | $12,039 |
| Carbidopa-Levodopa ErCarbidopa/Levodopa | 189 | $8,919 |
| AmantadineAmantadine Hcl | 91 | $5,923 |
| Ropinirole ErRopinirole Hcl | 36 | $3,360 |
| Rivastigmine | 21 | $2,905 |
| Sertraline Hcl | 29 | $2,055 |
| Mirtazapine | 58 | $1,019 |
| Quetiapine Fumarate | 43 | $888 |
| Selegiline Hcl | 15 | $803 |
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 |
|---|---|---|
| Acadia Pharmaceuticals IncNuplazid | $22,731 | $157,66122 claims |
| Amneal Pharmaceuticals LLCRytary | $6,672 | $152,177109 claims |
| MDD US Operations, LLCGocovri | $136,242 | $85,77626 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 95th percentile of 1,996 neurology providers in California.
Other neurology in Los Angeles
- Timothy CloughesyLos Angeles$33.1M
- Perry ShiehLos Angeles$8.2M
- Jeffrey SaverLos Angeles$2.9M
- David PiccioniLos Angeles$2.9M
- David LiebeskindLos Angeles$2.7M
- Michele TagliatiLos Angeles$2.5M
- Jennifer HuiLos Angeles$2.4M
- Susan PerlmanLos Angeles$2.2M
- Jeffrey CummingsLos Angeles$2M
- Bryan SpannLos Angeles$1.8M
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.