Payment overview · 2025
General Payments
$123.37
7 reported records · 5 companies
Healthcare provider profile · identity verified
Vuthy Leng, M.D.
Allopathic & Osteopathic Physicians|Family Medicine · FEDERAL WAY, WA · NPI 1710952379
Verified facts
What the public records show
CMS Open Payments records show Vuthy Leng, M.D. received $123.37 in general payments during 2025 across 7 reported records.
Phathom Pharmaceuticals, Inc. accounted for 34.0% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 5 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Zubsolv.
Orexo US, 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 Zubsolv as an associated drug or biological on 1867 records involving 794 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Zubsolv 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 |
|---|---|---|---|---|---|
| Phathom Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $41.92 | 34.0% | 2 | 2025 |
| Orexo US, Inc. | Unresolved — no canonical attribution shown | $30.84 | 25.0% | 2 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $19.72 | 16.0% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $16.89 | 13.7% | 1 | 2025 |
| Aimmune Therapeutics, Inc. | Unresolved — no canonical attribution shown | $14.00 | 11.3% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $123.37 | 7 |
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 |
|---|---|---|---|---|---|
| VOQUEZNA Normalized: voquezna |
Drug | Phathom Pharmaceuticals, Inc. | $41.92 | 2 | 2025 |
Source payment records
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| Zubsolv Normalized: zubsolv |
Drug | Orexo US, Inc. | $30.84 | 2 | 2025 |
Source payment records
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| RELISTOR Normalized: relistor |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $19.72 | 1 | 2025 |
Source payment records
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| MOUNJARO Normalized: mounjaro |
Drug | Lilly USA, LLC | $16.89 | 1 | 2025 |
Source payment records
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| ZENPEP Normalized: zenpep |
Drug | Aimmune Therapeutics, Inc. | $14.00 | 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 |
|---|---|---|---|---|---|---|
| Zubsolv zubsolv |
2025 | Zubsolv | 2024 | 13 Beneficiary count suppressed |
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 |
|---|---|---|---|---|---|---|
| Orexo US, Inc. Exact reporting entity; no affiliate inference |
2025 | Zubsolv open payments reported associated product |
CMS Open Payments — General Payments 1867 supporting records · 794 recipient NPIs · example record 1190507283 |
Zubsolv · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
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 |
|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 180 | 49 |
| Atorvastatin Calcium | Atorvastatin Calcium | 161 | 53 |
| Metformin Hcl | Metformin Hcl | 122 | 42 |
| Oxycodone Hcl | Oxycodone Hcl | 113 | 14 |
| Gabapentin | Gabapentin | 111 | 23 |
| Buprenorphine-Naloxone | Buprenorphine Hcl/Naloxone Hcl | 107 | 11 |
| Zolpidem Tartrate | Zolpidem Tartrate | 92 | 18 |
| Alprazolam | Alprazolam | 87 | 11 |
| Tamsulosin Hcl | Tamsulosin Hcl | 81 | 21 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 74 | 18 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 71 | 11 |
| Celecoxib | Celecoxib | 70 | 26 |
| Trazodone Hcl | Trazodone Hcl | 64 | 16 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 60 | 19 |
| Methadone Hcl | Methadone Hcl | 58 | suppressed |
| Simvastatin | Simvastatin | 56 | 13 |
| Levothyroxine Sodium | Levothyroxine Sodium | 55 | 18 |
| Atenolol | Atenolol | 49 | 12 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 49 | suppressed |
| Omeprazole | Omeprazole | 46 | 16 |
| Donepezil Hcl | Donepezil Hcl | 45 | suppressed |
| Lisinopril | Lisinopril | 45 | 14 |
| Azithromycin | Azithromycin | 42 | 31 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 42 | suppressed |
| Baclofen | Baclofen | 40 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 39 | suppressed |
| Amoxicillin | Amoxicillin | 38 | 23 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 36 | 12 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 36 | suppressed |
| Mirtazapine | Mirtazapine | 36 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 35 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 35 | 14 |
| Prednisone | Prednisone | 35 | 23 |
| Metoprolol Succinate | Metoprolol Succinate | 32 | 11 |
| Furosemide | Furosemide | 31 | suppressed |
| Losartan Potassium | Losartan Potassium | 27 | 14 |
| Metoprolol Tartrate | Metoprolol Tartrate | 27 | suppressed |
| Allopurinol | Allopurinol | 24 | suppressed |
| Pantoprazole Sodium | Pantoprazole Sodium | 24 | suppressed |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 24 | suppressed |
| Buprenorphine Hcl | Buprenorphine Hcl | 23 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 23 | suppressed |
| Diazepam | Diazepam | 22 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 22 | suppressed |
| Glipizide | Glipizide | 22 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 22 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 22 | 13 |
| Clonazepam | Clonazepam | 21 | suppressed |
| Colchicine | Colchicine | 21 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 21 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 21 | suppressed |
| Ozempic | Semaglutide | 21 | suppressed |
| Hydrochlorothiazide | Hydrochlorothiazide | 20 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 19 | suppressed |
| Prednisolone Acetate | Prednisolone Acetate | 19 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 19 | suppressed |
| Bupropion Xl | Bupropion Hcl | 18 | suppressed |
| Famotidine | Famotidine | 18 | suppressed |
| Nystatin-Triamcinolone | Nystatin/Triamcinolone Acet | 17 | suppressed |
| Lorazepam | Lorazepam | 16 | suppressed |
| Carisoprodol | Carisoprodol | 15 | suppressed |
| Hydroxyzine Pamoate | Hydroxyzine Pamoate | 15 | suppressed |
| Methocarbamol | Methocarbamol | 15 | suppressed |
| Potassium Chloride | Potassium Chloride | 15 | suppressed |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 15 | suppressed |
| Carvedilol | Carvedilol | 14 | suppressed |
| Digoxin | Digoxin | 14 | suppressed |
| Promethazine Hcl | Promethazine Hcl | 14 | suppressed |
| Butalbital-Acetaminophen-Caffe | Butalb/Acetaminophen/Caffeine | 13 | suppressed |
| Lidocaine | Lidocaine | 13 | suppressed |
| Zubsolv | Buprenorphine Hcl/Naloxone Hcl | 13 | suppressed |
| Fenofibrate | Fenofibrate | 12 | suppressed |
| Finasteride | Finasteride | 12 | suppressed |
| Januvia | Sitagliptin Phosphate | 12 | suppressed |
| Ketoconazole | Ketoconazole | 12 | suppressed |
| Mesalamine Er | Mesalamine | 11 | suppressed |
| Nitroglycerin | Nitroglycerin | 11 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 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 | $123.37 · 7 records | Phathom Pharmaceuticals, Inc. | MOUNJARO, RELISTOR, VOQUEZNA, ZENPEP, Zubsolv | 1 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Zubsolv play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with Orexo US, Inc.?
- 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