Payment overview · 2025
General Payments
$21.79
1 reported records · 1 companies
Healthcare provider profile · identity verified
Darin W Lang, MD
Allopathic & Osteopathic Physicians|Internal Medicine · FARGO, ND · NPI 1780602342
Verified facts
What the public records show
CMS Open Payments records show Darin W Lang, MD received $21.79 in general payments during 2025 across 1 reported records.
Merck Sharp & Dohme LLC accounted for 100.0% of that reported general-payment amount.
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 |
|---|---|---|---|---|---|
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $21.79 | 100.0% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $21.79 | 1 |
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
Payment records were found, but the reported records did not identify a specific associated product for this analysis.
Public prescribing for products named in payments
There is no explicit payment-product set available for a Part D comparison.
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 | 1276 | 316 |
| Amlodipine Besylate | Amlodipine Besylate | 1053 | 267 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 964 | 282 |
| Lisinopril | Lisinopril | 784 | 190 |
| Metoprolol Succinate | Metoprolol Succinate | 783 | 200 |
| Levothyroxine Sodium | Levothyroxine Sodium | 774 | 162 |
| Losartan Potassium | Losartan Potassium | 761 | 197 |
| Omeprazole | Omeprazole | 580 | 177 |
| Tamsulosin Hcl | Tamsulosin Hcl | 544 | 173 |
| Furosemide | Furosemide | 448 | 116 |
| Escitalopram Oxalate | Escitalopram Oxalate | 403 | 79 |
| Gabapentin | Gabapentin | 374 | 77 |
| Eliquis | Apixaban | 311 | 74 |
| Hydrochlorothiazide | Hydrochlorothiazide | 308 | 91 |
| Duloxetine Hcl | Duloxetine Hcl | 287 | 41 |
| Carvedilol | Carvedilol | 280 | 69 |
| Sertraline Hcl | Sertraline Hcl | 270 | 48 |
| Metoprolol Tartrate | Metoprolol Tartrate | 267 | 65 |
| Metformin Hcl Er | Metformin Hcl | 266 | 63 |
| Simvastatin | Simvastatin | 262 | 72 |
| Allopurinol | Allopurinol | 255 | 66 |
| Mirtazapine | Mirtazapine | 250 | 40 |
| Fluticasone Propionate | Fluticasone Propionate | 232 | 99 |
| Finasteride | Finasteride | 231 | 68 |
| Metformin Hcl | Metformin Hcl | 222 | 64 |
| Pantoprazole Sodium | Pantoprazole Sodium | 216 | 46 |
| Donepezil Hcl | Donepezil Hcl | 215 | 51 |
| Potassium Chloride | Potassium Chloride | 192 | 56 |
| Memantine Hcl | Memantine Hcl | 173 | 27 |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 155 | 35 |
| Trazodone Hcl | Trazodone Hcl | 154 | 37 |
| Warfarin Sodium | Warfarin Sodium | 146 | 49 |
| Tramadol Hcl | Tramadol Hcl | 137 | 30 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 133 | 73 |
| Famotidine | Famotidine | 128 | 29 |
| Glipizide | Glipizide | 123 | 33 |
| Alendronate Sodium | Alendronate Sodium | 119 | 42 |
| Ezetimibe | Ezetimibe | 118 | 41 |
| Spironolactone | Spironolactone | 118 | 36 |
| Bupropion Xl | Bupropion Hcl | 111 | 21 |
| Montelukast Sodium | Montelukast Sodium | 102 | 24 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 101 | 34 |
| Clopidogrel | Clopidogrel Bisulfate | 100 | 32 |
| Pravastatin Sodium | Pravastatin Sodium | 100 | 31 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 99 | 25 |
| Bumetanide | Bumetanide | 98 | 22 |
| Jardiance | Empagliflozin | 96 | 25 |
| Klor-Con M10 | Potassium Chloride | 91 | 22 |
| Atenolol | Atenolol | 90 | 19 |
| Ozempic | Semaglutide | 89 | 24 |
| Citalopram Hbr | Citalopram Hydrobromide | 87 | 22 |
| Xarelto | Rivaroxaban | 82 | 22 |
| Klor-Con M20 | Potassium Chloride | 79 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 79 | 20 |
| Doxazosin Mesylate | Doxazosin Mesylate | 78 | 23 |
| Nitroglycerin | Nitroglycerin | 78 | 63 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 76 | 21 |
| Fluoxetine Hcl | Fluoxetine Hcl | 71 | 13 |
| Pregabalin | Pregabalin | 62 | 13 |
| Prednisone | Prednisone | 61 | 27 |
| Ipratropium Bromide | Ipratropium Bromide | 60 | 13 |
| Paroxetine Hcl | Paroxetine Hcl | 59 | 18 |
| Buspirone Hcl | Buspirone Hcl | 56 | 13 |
| Baclofen | Baclofen | 55 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 54 | 15 |
| Sodium Chloride | 0.9 % Sodium Chloride | 52 | suppressed |
| Calcitriol | Calcitriol | 51 | suppressed |
| Glycopyrrolate | Glycopyrrolate | 51 | suppressed |
| Midodrine Hcl | Midodrine Hcl | 51 | suppressed |
| Jantoven | Warfarin Sodium | 50 | 13 |
| Propranolol Hcl | Propranolol Hcl | 50 | 11 |
| Januvia | Sitagliptin Phosphate | 49 | 15 |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 47 | suppressed |
| Nifedipine Er | Nifedipine | 46 | suppressed |
| Benazepril Hcl | Benazepril Hcl | 45 | 11 |
| Digoxin | Digoxin | 42 | 11 |
| Fenofibrate | Fenofibrate | 41 | suppressed |
| Clonazepam | Clonazepam | 40 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 40 | 13 |
| Oxybutynin Chloride | Oxybutynin Chloride | 40 | suppressed |
| Alfuzosin Hcl Er | Alfuzosin Hcl | 39 | suppressed |
| Lovastatin | Lovastatin | 38 | 12 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 37 | 13 |
| Myrbetriq | Mirabegron | 36 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 36 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 36 | 11 |
| Glipizide Er | Glipizide | 35 | 12 |
| Hydralazine Hcl | Hydralazine Hcl | 35 | 12 |
| Valsartan | Valsartan | 35 | 11 |
| Arnuity Ellipta | Fluticasone Furoate | 34 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 33 | 18 |
| Zolpidem Tartrate | Zolpidem Tartrate | 33 | 13 |
| Quetiapine Fumarate | Quetiapine Fumarate | 32 | suppressed |
| Alprazolam | Alprazolam | 31 | 13 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 31 | suppressed |
| Nortriptyline Hcl | Nortriptyline Hcl | 30 | suppressed |
| Carbidopa-Levodopa Er | Carbidopa/Levodopa | 29 | suppressed |
| Chlorthalidone | Chlorthalidone | 29 | 12 |
| Lorazepam | Lorazepam | 29 | 15 |
| Tresiba Flextouch U-100 | Insulin Degludec | 29 | suppressed |
| Trulicity | Dulaglutide | 29 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 28 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 28 | suppressed |
| Topiramate | Topiramate | 27 | suppressed |
| Victoza 3-Pak | Liraglutide | 26 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 25 | 13 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 23 | 12 |
| Incruse Ellipta | Umeclidinium Bromide | 23 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 23 | 22 |
| Valproic Acid | Valproic Acid (As Sodium Salt) | 23 | suppressed |
| Amoxicillin | Amoxicillin | 22 | 15 |
| Brimonidine Tartrate | Brimonidine Tartrate | 22 | suppressed |
| Candesartan Cilexetil | Candesartan Cilexetil | 22 | suppressed |
| Cephalexin | Cephalexin | 22 | 12 |
| Clobetasol Propionate | Clobetasol Propionate | 22 | suppressed |
| Diltiazem Hcl | Diltiazem Hcl | 22 | suppressed |
| Levetiracetam | Levetiracetam | 22 | suppressed |
| Synthroid | Levothyroxine Sodium | 22 | suppressed |
| Torsemide | Torsemide | 22 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 21 | suppressed |
| Budesonide | Budesonide | 21 | suppressed |
| Memantine Hcl Er | Memantine Hcl | 21 | suppressed |
| Mounjaro | Tirzepatide | 21 | suppressed |
| Novolog Flexpen | Insulin Aspart | 21 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 21 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 21 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 20 | suppressed |
| Celecoxib | Celecoxib | 20 | suppressed |
| Humalog Kwikpen U-100 | Insulin Lispro | 20 | suppressed |
| Loperamide | Loperamide Hcl | 19 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 18 | suppressed |
| Ketoconazole | Ketoconazole | 18 | suppressed |
| Rybelsus | Semaglutide | 18 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 18 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 17 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 17 | suppressed |
| Autoshield Duo Pen Needle | Pen Needle,dual Safety,diabetc | 16 | suppressed |
| Doxycycline Hyclate | Doxycycline Hyclate | 16 | 11 |
| Dutasteride | Dutasteride | 16 | suppressed |
| Fenofibrate | Fenofibrate Nanocrystallized | 16 | suppressed |
| Lansoprazole | Lansoprazole | 16 | suppressed |
| Terazosin Hcl | Terazosin Hcl | 16 | suppressed |
| Aripiprazole | Aripiprazole | 15 | suppressed |
| Brilinta | Ticagrelor | 15 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 15 | suppressed |
| Basaglar Kwikpen U-100 | Insulin Glargine,hum.Rec.Anlog | 14 | suppressed |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 14 | suppressed |
| Dilt-Xr | Diltiazem Hcl | 14 | suppressed |
| Hydrocortisone | Hydrocortisone | 14 | suppressed |
| Linzess | Linaclotide | 14 | suppressed |
| Eszopiclone | Eszopiclone | 13 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 13 | suppressed |
| Ondansetron Odt | Ondansetron | 13 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 13 | suppressed |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 13 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 12 | suppressed |
| Cholestyramine | Cholestyramine (With Sugar) | 12 | suppressed |
| Fiasp Flextouch | Insulin Aspart (Niacinamide) | 12 | suppressed |
| Mupirocin | Mupirocin | 12 | suppressed |
| Ramipril | Ramipril | 12 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 12 | suppressed |
| Azithromycin | Azithromycin | 11 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 11 | suppressed |
| Meloxicam | Meloxicam | 11 | suppressed |
| Timolol Maleate | Timolol Maleate | 11 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 11 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 11 | suppressed |
| Verapamil Er | Verapamil 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 | $21.79 · 1 records | Merck Sharp & Dohme LLC | — | — | — |
| 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