Payment overview · 2025
General Payments
2 reported records · 2 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Family Medicine · OROVILLE, CA · NPI 1285637744
Verified facts
CMS Open Payments records show Sultan Chopan, MD received $42.18 in general payments during 2025 across 2 reported records.
CSL Behring accounted for 55.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 2 associated products.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
2 reported records · 2 companies
Separate record types
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?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| CSL Behring | Unresolved — no canonical attribution shown | $23.51 | 55.7% | 1 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $18.67 | 44.3% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $42.18 | 2 |
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
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| Haegarda Normalized: haegarda |
Biological | CSL Behring | $23.51 | 1 | 2025 |
Source payment records
|
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| FARXIGA Normalized: farxiga |
Drug | AstraZeneca Pharmaceuticals LP | $18.67 | 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.
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
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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 549 | 172 |
| Lisinopril | Lisinopril | 312 | 98 |
| Levothyroxine Sodium | Levothyroxine Sodium | 279 | 79 |
| Amlodipine Besylate | Amlodipine Besylate | 277 | 94 |
| Metformin Hcl | Metformin Hcl | 276 | 86 |
| Omeprazole | Omeprazole | 265 | 88 |
| Losartan Potassium | Losartan Potassium | 239 | 74 |
| Montelukast Sodium | Montelukast Sodium | 224 | 64 |
| Gabapentin | Gabapentin | 221 | 70 |
| Tamsulosin Hcl | Tamsulosin Hcl | 215 | 69 |
| Pantoprazole Sodium | Pantoprazole Sodium | 178 | 58 |
| Buspirone Hcl | Buspirone Hcl | 152 | 40 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 145 | 33 |
| Meloxicam | Meloxicam | 130 | 40 |
| Duloxetine Hcl | Duloxetine Hcl | 120 | 25 |
| Metoprolol Tartrate | Metoprolol Tartrate | 117 | 42 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 116 | 46 |
| Ozempic | Semaglutide | 116 | 21 |
| Pioglitazone Hcl | Pioglitazone Hcl | 114 | 35 |
| Zolpidem Tartrate | Zolpidem Tartrate | 114 | 24 |
| Metoprolol Succinate | Metoprolol Succinate | 108 | 36 |
| Ibuprofen | Ibuprofen | 104 | 23 |
| Metformin Hcl Er | Metformin Hcl | 101 | 31 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 97 | 38 |
| Hydrochlorothiazide | Hydrochlorothiazide | 95 | 30 |
| Baclofen | Baclofen | 93 | 38 |
| Chlorthalidone | Chlorthalidone | 89 | 28 |
| Tramadol Hcl | Tramadol Hcl | 88 | 20 |
| Furosemide | Furosemide | 86 | 25 |
| Allopurinol | Allopurinol | 85 | 30 |
| Alendronate Sodium | Alendronate Sodium | 84 | 20 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 82 | 26 |
| Trazodone Hcl | Trazodone Hcl | 82 | 23 |
| Glipizide | Glipizide | 81 | 24 |
| Famotidine | Famotidine | 72 | 17 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 66 | 21 |
| Fluticasone Propionate | Fluticasone Propionate | 66 | 28 |
| Hydralazine Hcl | Hydralazine Hcl | 63 | 18 |
| Janumet | Sitagliptin Phos/Metformin Hcl | 61 | 12 |
| Jardiance | Empagliflozin | 59 | 14 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 57 | 18 |
| Escitalopram Oxalate | Escitalopram Oxalate | 55 | 14 |
| Clopidogrel | Clopidogrel Bisulfate | 51 | 18 |
| Potassium Chloride | Potassium Chloride | 50 | 18 |
| Valsartan | Valsartan | 49 | 17 |
| Simvastatin | Simvastatin | 48 | 19 |
| Ezetimibe | Ezetimibe | 47 | 15 |
| Carvedilol | Carvedilol | 46 | 15 |
| Doxepin Hcl | Doxepin Hcl | 46 | suppressed |
| Eliquis | Apixaban | 46 | 16 |
| Pregabalin | Pregabalin | 45 | 15 |
| Quetiapine Fumarate | Quetiapine Fumarate | 44 | 11 |
| Mirtazapine | Mirtazapine | 43 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 43 | 13 |
| Benazepril Hcl | Benazepril Hcl | 42 | 13 |
| Testosterone Cypionate | Testosterone Cypionate | 41 | suppressed |
| Abrysvo | Rsv Vacc, Pref A And Pref B/Pf | 40 | 40 |
| Donepezil Hcl | Donepezil Hcl | 40 | 15 |
| Celecoxib | Celecoxib | 36 | 12 |
| Topiramate | Topiramate | 36 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 34 | 12 |
| Januvia | Sitagliptin Phosphate | 34 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 32 | suppressed |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 32 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 32 | 15 |
| Bupropion Hcl Sr | Bupropion Hcl | 30 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 30 | 14 |
| Prednisone | Prednisone | 30 | 22 |
| Shingrix | Varicella-Zoster Ge/As01b/Pf | 30 | 26 |
| Ropinirole Hcl | Ropinirole Hcl | 29 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 29 | 12 |
| Ventolin Hfa | Albuterol Sulfate | 29 | suppressed |
| Amoxicillin | Amoxicillin | 28 | 23 |
| Sertraline Hcl | Sertraline Hcl | 28 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 28 | 20 |
| Lovastatin | Lovastatin | 27 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 27 | 13 |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 27 | suppressed |
| Ketoconazole | Ketoconazole | 26 | 14 |
| Lorazepam | Lorazepam | 26 | 15 |
| Atenolol | Atenolol | 25 | suppressed |
| Azithromycin | Azithromycin | 25 | 23 |
| Levetiracetam | Levetiracetam | 25 | suppressed |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 25 | suppressed |
| Nystatin | Nystatin | 25 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 24 | 20 |
| Estradiol | Estradiol | 23 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 23 | suppressed |
| Verapamil Er | Verapamil Hcl | 23 | suppressed |
| Alprazolam | Alprazolam | 22 | suppressed |
| Fluconazole | Fluconazole | 22 | 12 |
| Linzess | Linaclotide | 22 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 22 | suppressed |
| Tradjenta | Linagliptin | 21 | suppressed |
| Colchicine | Colchicine | 20 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 20 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 20 | suppressed |
| Xarelto | Rivaroxaban | 20 | suppressed |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 19 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 19 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 19 | suppressed |
| Terbinafine Hcl | Terbinafine Hcl | 19 | suppressed |
| Citalopram Hbr | Citalopram Hydrobromide | 18 | suppressed |
| Dexlansoprazole Dr | Dexlansoprazole | 18 | suppressed |
| Temazepam | Temazepam | 18 | suppressed |
| Arexvy | Rsvpref3 Antigen/As01e/Pf | 17 | 17 |
| Fenofibrate | Fenofibrate Nanocrystallized | 17 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 17 | suppressed |
| Eszopiclone | Eszopiclone | 16 | suppressed |
| Invokana | Canagliflozin | 16 | suppressed |
| Nitrofurantoin | Nitrofurantoin Macrocrystal | 15 | suppressed |
| Sucralfate | Sucralfate | 15 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 15 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 15 | suppressed |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 15 | suppressed |
| Acyclovir | Acyclovir | 14 | suppressed |
| Breyna | Budesonide/Formoterol Fumarate | 14 | suppressed |
| Bupropion Xl | Bupropion Hcl | 14 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 14 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 14 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 14 | suppressed |
| Venlafaxine Hcl | Venlafaxine Hcl | 14 | suppressed |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 13 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 13 | suppressed |
| Buprenorphine | Buprenorphine | 13 | suppressed |
| Levofloxacin | Levofloxacin | 13 | 12 |
| Mupirocin | Mupirocin | 13 | suppressed |
| Rizatriptan | Rizatriptan Benzoate | 13 | suppressed |
| Betaseron | Interferon Beta-1b | 12 | suppressed |
| Candesartan Cilexetil | Candesartan Cilexetil | 12 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 12 | 11 |
| Dutasteride | Dutasteride | 12 | suppressed |
| Janumet Xr | Sitagliptin Phos/Metformin Hcl | 12 | suppressed |
| Lamotrigine | Lamotrigine | 12 | suppressed |
| Lurasidone Hcl | Lurasidone Hcl | 12 | suppressed |
| Neomycin-Polymyxin-Hc | Neomycin/Polymyxin B/Hydrocort | 12 | suppressed |
| Nortriptyline Hcl | Nortriptyline Hcl | 12 | suppressed |
| Synthroid | Levothyroxine Sodium | 12 | suppressed |
| Amlodipine Besylate-Benazepril | Amlodipine Besylate/Benazepril | 11 | suppressed |
| Bupropion Hcl | Bupropion Hcl | 11 | suppressed |
| Clonazepam | Clonazepam | 11 | suppressed |
| Diclofenac Potassium | Diclofenac Potassium | 11 | suppressed |
| Fludrocortisone Acetate | Fludrocortisone Acetate | 11 | suppressed |
| Humalog Kwikpen U-100 | Insulin Lispro | 11 | suppressed |
| Ibu | Ibuprofen | 11 | suppressed |
| Memantine Hcl | Memantine Hcl | 11 | suppressed |
| Mesalamine | Mesalamine | 11 | suppressed |
| Metoclopramide Hcl | Metoclopramide Hcl | 11 | suppressed |
| Midodrine Hcl | Midodrine Hcl | 11 | suppressed |
| Promethazine Hcl | Promethazine Hcl | 11 | suppressed |
Timeline
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 | $42.18 · 2 records | CSL Behring | FARXIGA, Haegarda | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| 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