Payment overview · 2025
General Payments
$411.72
11 reported records · 3 companies
Healthcare provider profile · identity verified
Brian David Lum, MD
Allopathic & Osteopathic Physicians|General Practice · GREENVILLE, SC · NPI 1245359132
Verified facts
What the public records show
CMS Open Payments records show Brian David Lum, MD received $411.72 in general payments during 2025 across 11 reported records.
Gilead Sciences, Inc. accounted for 92.4% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 3 associated products.
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 |
|---|---|---|---|---|---|
| Gilead Sciences, Inc. | Unresolved — no canonical attribution shown | $380.27 | 92.4% | 9 | 2025 |
| Hologic Sales and Service, LLC | Unresolved — no canonical attribution shown | $16.33 | 4.0% | 1 | 2025 |
| ViiV Healthcare Company | Unresolved — no canonical attribution shown | $15.12 | 3.7% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $411.72 | 11 |
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 |
|---|---|---|---|---|---|
| Biktarvy Normalized: biktarvy |
Drug | Gilead Sciences, Inc. | $292.76 | 5 | 2025 |
Source payment records
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| APTIMA Normalized: aptima |
Device | Hologic Sales and Service, LLC | $16.33 | 1 | 2025 |
Source payment records
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| CABENUVA Normalized: cabenuva |
Drug | ViiV Healthcare Company | $15.12 | 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
No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.
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.
No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.
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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 459 | 156 |
| Amlodipine Besylate | Amlodipine Besylate | 316 | 120 |
| Losartan Potassium | Losartan Potassium | 299 | 98 |
| Levothyroxine Sodium | Levothyroxine Sodium | 281 | 97 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 274 | 100 |
| Lisinopril | Lisinopril | 253 | 85 |
| Omeprazole | Omeprazole | 243 | 89 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 206 | 41 |
| Pantoprazole Sodium | Pantoprazole Sodium | 199 | 70 |
| Gabapentin | Gabapentin | 190 | 74 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 167 | 61 |
| Trazodone Hcl | Trazodone Hcl | 152 | 52 |
| Fluticasone Propionate | Fluticasone Propionate | 148 | 71 |
| Hydrochlorothiazide | Hydrochlorothiazide | 141 | 49 |
| Zolpidem Tartrate | Zolpidem Tartrate | 127 | 32 |
| Alprazolam | Alprazolam | 126 | 22 |
| Tamsulosin Hcl | Tamsulosin Hcl | 122 | 47 |
| Escitalopram Oxalate | Escitalopram Oxalate | 119 | 40 |
| Famotidine | Famotidine | 117 | 45 |
| Metformin Hcl | Metformin Hcl | 111 | 39 |
| Montelukast Sodium | Montelukast Sodium | 108 | 40 |
| Metformin Hcl Er | Metformin Hcl | 100 | 36 |
| Duloxetine Hcl | Duloxetine Hcl | 93 | 28 |
| Furosemide | Furosemide | 91 | 42 |
| Diclofenac Sodium | Diclofenac Sodium | 90 | 48 |
| Meloxicam | Meloxicam | 85 | 32 |
| Simvastatin | Simvastatin | 84 | 31 |
| Tizanidine Hcl | Tizanidine Hcl | 83 | 47 |
| Tramadol Hcl | Tramadol Hcl | 82 | 35 |
| Metoprolol Succinate | Metoprolol Succinate | 79 | 30 |
| Glipizide Er | Glipizide | 77 | 24 |
| Cephalexin | Cephalexin | 75 | 64 |
| Donepezil Hcl | Donepezil Hcl | 74 | 32 |
| Alendronate Sodium | Alendronate Sodium | 73 | 32 |
| Metoprolol Tartrate | Metoprolol Tartrate | 72 | 31 |
| Buspirone Hcl | Buspirone Hcl | 70 | 26 |
| Carvedilol | Carvedilol | 69 | 24 |
| Nifedipine Er | Nifedipine | 69 | 25 |
| Prednisone | Prednisone | 69 | 53 |
| Eliquis | Apixaban | 66 | 23 |
| Lorazepam | Lorazepam | 64 | 16 |
| Mirtazapine | Mirtazapine | 63 | 22 |
| Mounjaro | Tirzepatide | 61 | 13 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 59 | 19 |
| Memantine Hcl | Memantine Hcl | 57 | 17 |
| Ropinirole Hcl | Ropinirole Hcl | 55 | 18 |
| Dropsafe Prep Pads | Alcohol Antiseptic Pads | 54 | 17 |
| Allopurinol | Allopurinol | 53 | 19 |
| Fluoxetine Hcl | Fluoxetine Hcl | 52 | 17 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 51 | 15 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 49 | 22 |
| Ezetimibe | Ezetimibe | 48 | 17 |
| Pravastatin Sodium | Pravastatin Sodium | 48 | 15 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 47 | 30 |
| Clopidogrel | Clopidogrel Bisulfate | 45 | 16 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 45 | 14 |
| Ondansetron Hcl | Ondansetron Hcl | 42 | 25 |
| Pregabalin | Pregabalin | 42 | 17 |
| Citalopram Hbr | Citalopram Hydrobromide | 41 | 16 |
| Jardiance | Empagliflozin | 41 | 15 |
| Sertraline Hcl | Sertraline Hcl | 40 | 17 |
| Bupropion Hcl Sr | Bupropion Hcl | 39 | 11 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 39 | 33 |
| Doxycycline Hyclate | Doxycycline Hyclate | 39 | 34 |
| Potassium Chloride | Potassium Chloride | 39 | 17 |
| Clonazepam | Clonazepam | 38 | suppressed |
| Glipizide | Glipizide | 38 | 13 |
| Atenolol | Atenolol | 37 | 12 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 37 | suppressed |
| Bupropion Xl | Bupropion Hcl | 36 | 15 |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 35 | 12 |
| Amitriptyline Hcl | Amitriptyline Hcl | 34 | 13 |
| Meclizine Hcl | Meclizine Hcl | 34 | 17 |
| Oxycodone Hcl | Oxycodone Hcl | 34 | suppressed |
| Xarelto | Rivaroxaban | 34 | suppressed |
| Diazepam | Diazepam | 33 | 11 |
| Promethazine Hcl | Promethazine Hcl | 33 | 11 |
| Warfarin Sodium | Warfarin Sodium | 33 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 32 | 18 |
| Spironolactone | Spironolactone | 31 | suppressed |
| Mupirocin | Mupirocin | 30 | 23 |
| Fluconazole | Fluconazole | 29 | 21 |
| Nystatin | Nystatin | 29 | 21 |
| Cefdinir | Cefdinir | 28 | 21 |
| Dextroamphetamine-Amphetamine | Dextroamphetamine/Amphetamine | 28 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 28 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 28 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 27 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 27 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 26 | suppressed |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 25 | 22 |
| Ondansetron Odt | Ondansetron | 25 | suppressed |
| Celecoxib | Celecoxib | 24 | 11 |
| Fenofibrate | Fenofibrate Nanocrystallized | 24 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 24 | suppressed |
| Ibuprofen | Ibuprofen | 23 | suppressed |
| Fenofibrate | Fenofibrate | 22 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 22 | suppressed |
| Ipratropium Bromide | Ipratropium Bromide | 22 | 14 |
| Azithromycin | Azithromycin | 21 | 18 |
| Naproxen | Naproxen | 21 | suppressed |
| Ozempic | Semaglutide | 21 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 20 | suppressed |
| Bumetanide | Bumetanide | 20 | suppressed |
| Estradiol | Estradiol | 20 | suppressed |
| Lovastatin | Lovastatin | 20 | suppressed |
| Synthroid | Levothyroxine Sodium | 20 | suppressed |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 19 | suppressed |
| Chlorthalidone | Chlorthalidone | 19 | suppressed |
| Sildenafil Citrate | Sildenafil Citrate | 19 | suppressed |
| Stiolto Respimat | Tiotropium Br/Olodaterol Hcl | 19 | suppressed |
| Irbesartan | Irbesartan | 18 | suppressed |
| Myrbetriq | Mirabegron | 18 | suppressed |
| Sucralfate | Sucralfate | 18 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 17 | suppressed |
| Trulicity | Dulaglutide | 17 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 17 | suppressed |
| Levetiracetam | Levetiracetam | 16 | suppressed |
| Valsartan | Valsartan | 16 | suppressed |
| Benazepril Hcl | Benazepril Hcl | 15 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 15 | suppressed |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 15 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 15 | suppressed |
| Finasteride | Finasteride | 15 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 15 | suppressed |
| Amoxicillin | Amoxicillin | 14 | 11 |
| Clotrimazole | Clotrimazole | 14 | suppressed |
| Oxymorphone Hcl Er | Oxymorphone Hcl | 14 | suppressed |
| Solifenacin Succinate | Solifenacin Succinate | 14 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 14 | 13 |
| Droplet Pen Needle | Pen Needle, Diabetic | 13 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 13 | suppressed |
| Ketoconazole | Ketoconazole | 13 | suppressed |
| Metronidazole | Metronidazole | 13 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 13 | suppressed |
| Terbinafine Hcl | Terbinafine Hcl | 13 | suppressed |
| Glimepiride | Glimepiride | 12 | suppressed |
| Levocetirizine Dihydrochloride | Levocetirizine Dihydrochloride | 12 | suppressed |
| Rybelsus | Semaglutide | 12 | suppressed |
| Spiriva Respimat | Tiotropium Bromide | 12 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 12 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 12 | suppressed |
| Colchicine | Colchicine | 11 | suppressed |
| Januvia | Sitagliptin Phosphate | 11 | suppressed |
| Methylprednisolone | Methylprednisolone | 11 | 11 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 11 | 11 |
| Pramipexole Dihydrochloride | Pramipexole Di-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 | $411.72 · 11 records | Gilead Sciences, Inc. | APTIMA, Biktarvy, CABENUVA | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- 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