Payment overview · 2025
General Payments
$1,567.21
67 reported records · 14 companies
Healthcare provider profile · identity verified
William Wei Chow, MD
Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · LOS ANGELES, CA · NPI 1457409211
Verified facts
What the public records show
CMS Open Payments records show William Wei Chow, MD received $1,567.21 in general payments during 2025 across 67 reported records.
UCB, Inc. accounted for 58.8% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 15 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Nurtec Odt.
Amneal Pharmaceuticals LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported RYTARY as an associated drug or biological on 200 records involving 121 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Rytary by this doctor in 2024.
PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Nurtec Odt by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Separate record types
Research & Ownership
Research Payments (direct recipient): not present in the loaded data
Associated Research Funding (for example, named PI): not present in the loaded data
Ownership / Investment: not present in the loaded data
These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.
Who paid this doctor?
Companies in 2025 General Payments
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| UCB, Inc. | Unresolved — no canonical attribution shown | $922.05 | 58.8% | 42 | 2025 |
| Axsome Therapeutics, Inc. | Unresolved — no canonical attribution shown | $96.84 | 6.2% | 3 | 2025 |
| ARGENX US, INC. | Unresolved — no canonical attribution shown | $94.71 | 6.0% | 4 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $82.44 | 5.3% | 3 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $71.58 | 4.6% | 3 | 2025 |
| Forte Bio-Pharma LLC | Unresolved — no canonical attribution shown | $52.70 | 3.4% | 2 | 2025 |
| ACADIA Pharmaceuticals Inc | Unresolved — no canonical attribution shown | $46.41 | 3.0% | 2 | 2025 |
| Eisai Inc. | Unresolved — no canonical attribution shown | $45.51 | 2.9% | 2 | 2025 |
| Neurelis, Inc. |
Neurelis, Inc. exact · evidence 2025-02-20 |
$29.54 | 1.9% | 1 | 2025 |
| GE HEALTHCARE | Unresolved — no canonical attribution shown | $27.46 | 1.8% | 1 | 2025 |
| Amneal Pharmaceuticals LLC | Unresolved — no canonical attribution shown | $27.09 | 1.7% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $25.16 | 1.6% | 1 | 2025 |
| Tanabe Pharma America, Inc. | Unresolved — no canonical attribution shown | $23.82 | 1.5% | 1 | 2025 |
| Lundbeck LLC | Unresolved — no canonical attribution shown | $21.90 | 1.4% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,567.21 | 67 |
A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.
Analysis 1 · Payment-linked products
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Zilbrysq Normalized: zilbrysq |
Drug | UCB, Inc. | $678.46 | 30 | 2025 |
Source payment records
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| Rystiggo Normalized: rystiggo |
Drug | UCB, Inc. | $243.59 | 12 | 2025 |
Source payment records
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| Symbravo Normalized: symbravo |
Drug | Axsome Therapeutics, Inc. | $96.84 | 3 | 2025 |
Source payment records
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| VYVGART Normalized: vyvgart |
Drug | ARGENX US, INC. | $94.71 | 4 | 2025 |
Source payment records
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| NURTEC ODT Normalized: nurtec odt |
Drug | PFIZER INC. | $82.44 | 3 | 2025 |
Source payment records
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| KESIMPTA Normalized: kesimpta |
Drug | Novartis Pharmaceuticals Corporation | $71.58 | 3 | 2025 |
Source payment records
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| TANLOR Normalized: tanlor |
Drug | Forte Bio-Pharma LLC | $52.70 | 2 | 2025 |
Source payment records
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| NUPLAZID Normalized: nuplazid |
Drug | ACADIA Pharmaceuticals Inc | $46.41 | 2 | 2025 |
Source payment records
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| Leqembi Normalized: leqembi |
Drug | Eisai Inc. | $45.51 | 2 | 2025 |
Source payment records
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| VALTOCO Normalized: valtoco |
Drug | Neurelis, Inc. | $29.54 | 1 | 2025 |
Source payment records
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| ZAVZPRET Normalized: zavzpret |
Drug | PFIZER INC. | $28.51 | 1 | 2025 |
Source payment records
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| CREXONT Normalized: crexont |
Drug | Amneal Pharmaceuticals LLC | $27.09 | 1 | 2025 |
Source payment records
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| KISUNLA Normalized: kisunla |
Drug | Lilly USA, LLC | $25.16 | 1 | 2025 |
Source payment records
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| Radicava Normalized: radicava |
Drug | Tanabe Pharma America, Inc. | $23.82 | 1 | 2025 |
Source payment records
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| VYEPTI Normalized: vyepti |
Biological | Lundbeck LLC | $21.90 | 1 | 2025 |
Source payment records
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* Product-associated amounts are non-additive because one payment record may name more than one product.
These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.
Public prescribing for products named in payments
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| NURTEC ODT nurtec odt |
2025 | Nurtec Odt | 2024 | 36 | exact normalized | Medicare Part D |
The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.
Analysis 2 · Same-company prescribing overlap
Drugs reported in other payments from the same company that also appear in Medicare Part D
This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.
| Paying company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| Amneal Pharmaceuticals LLC Exact reporting entity; no affiliate inference |
2025 | RYTARY open payments reported associated product |
CMS Open Payments — General Payments 200 supporting records · 121 recipient NPIs · example record 1220526035 |
Rytary · 2024 Exact normalized brand match · 1 Part D row |
12 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | NURTEC ODT open payments reported associated product |
CMS Open Payments — General Payments 217574 supporting records · 54025 recipient NPIs · example record 1228794063 |
Nurtec Odt · 2024 Exact normalized brand match · 1 Part D row |
36 | 11 |
These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.
Public Medicare Part D data
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Donepezil Hcl | Donepezil Hcl | 529 | 131 |
| Gabapentin | Gabapentin | 462 | 109 |
| Memantine Hcl | Memantine Hcl | 409 | 93 |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 331 | 70 |
| Levetiracetam | Levetiracetam | 223 | 47 |
| Duloxetine Hcl | Duloxetine Hcl | 133 | 31 |
| Topiramate | Topiramate | 118 | 26 |
| Propranolol Hcl Er | Propranolol Hcl | 115 | 25 |
| Primidone | Primidone | 70 | 14 |
| Lamotrigine | Lamotrigine | 67 | 13 |
| Trazodone Hcl | Trazodone Hcl | 57 | 17 |
| Carbamazepine Er | Carbamazepine | 53 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 49 | 12 |
| Meclizine Hcl | Meclizine Hcl | 48 | 16 |
| Pregabalin | Pregabalin | 47 | 14 |
| Ropinirole Hcl | Ropinirole Hcl | 46 | 14 |
| Tizanidine Hcl | Tizanidine Hcl | 46 | 14 |
| Quetiapine Fumarate | Quetiapine Fumarate | 45 | 13 |
| Baclofen | Baclofen | 44 | suppressed |
| Divalproex Sodium | Divalproex Sodium | 43 | suppressed |
| Nurtec Odt | Rimegepant Sulfate | 36 | 11 |
| Lacosamide | Lacosamide | 30 | suppressed |
| Memantine Hcl Er | Memantine Hcl | 30 | suppressed |
| Rivastigmine | Rivastigmine Tartrate | 30 | suppressed |
| Aimovig Autoinjector | Erenumab-Aooe | 28 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 28 | suppressed |
| Oxcarbazepine | Oxcarbazepine | 28 | suppressed |
| Pyridostigmine Bromide | Pyridostigmine Bromide | 28 | suppressed |
| Rizatriptan | Rizatriptan Benzoate | 28 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 27 | suppressed |
| Rasagiline Mesylate | Rasagiline Mesylate | 26 | suppressed |
| Levetiracetam Er | Levetiracetam | 25 | suppressed |
| Privigen | Immun Glob G(Igg)/Pro/Iga 0-50 | 25 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 22 | suppressed |
| Rivastigmine | Rivastigmine | 22 | suppressed |
| Methazolamide | Methazolamide | 21 | suppressed |
| Atorvastatin Calcium | Atorvastatin Calcium | 19 | suppressed |
| Clonazepam | Clonazepam | 19 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 19 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 19 | suppressed |
| Glatopa | Glatiramer Acetate | 19 | suppressed |
| Zonisamide | Zonisamide | 19 | suppressed |
| Qulipta | Atogepant | 18 | suppressed |
| Vimpat | Lacosamide | 18 | suppressed |
| Amantadine | Amantadine Hcl | 17 | suppressed |
| Ubrelvy | Ubrogepant | 17 | suppressed |
| Diazepam | Diazepam | 16 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 16 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 16 | suppressed |
| Alprazolam | Alprazolam | 14 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 14 | suppressed |
| Rebif Rebidose | Interferon Beta-1a/Albumin | 14 | suppressed |
| Eszopiclone | Eszopiclone | 13 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 13 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 13 | suppressed |
| Eletriptan Hbr | Eletriptan Hydrobromide | 12 | suppressed |
| Kesimpta Pen | Ofatumumab | 12 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 12 | suppressed |
| Percocet | Oxycodone Hcl/Acetaminophen | 12 | suppressed |
| Rytary | Carbidopa/Levodopa | 12 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 12 | suppressed |
| Vumerity | Diroximel Fumarate | 12 | suppressed |
| Dimethyl Fumarate | Dimethyl Fumarate | 11 | suppressed |
| Lidocaine | Lidocaine | 11 | suppressed |
| Mirtazapine | Mirtazapine | 11 | suppressed |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 11 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 11 | suppressed |
Timeline
Payment and prescribing data by year
Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $1,567.21 · 67 records | UCB, Inc. | CREXONT, KESIMPTA, KISUNLA, Leqembi, NUPLAZID, NURTEC ODT, Radicava, Rystiggo, Symbravo, TANLOR, VALTOCO, VYEPTI, VYVGART, ZAVZPRET, Zilbrysq | 2 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Nurtec Odt play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Amneal Pharmaceuticals LLC?
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| Dataset | Year | Publication | Source |
|---|---|---|---|
| CMS Open Payments — General Payments | 2025 | 2026-06-30 | Original source |
| Medicare Part D Prescribers by Provider and Drug | 2024 | 2026-05-06 | Original source |
| NPPES Data Dissemination V2 | current / reference data | 2026-08-10 | Original source |
Full methodology · Questions & answers · Report a possible error