Payment overview · 2025
General Payments
$50.38
2 reported records · 2 companies
Healthcare provider profile · identity verified
Thayaparan Mathanakaran, M.D
Allopathic & Osteopathic Physicians|Family Medicine|Adult Medicine · OLEAN, NY · NPI 1891734430
Verified facts
What the public records show
CMS Open Payments records show Thayaparan Mathanakaran, M.D received $50.38 in general payments during 2025 across 2 reported records.
Sumitomo Pharma America, Inc. accounted for 51.5% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 3 associated products.
ABBVIE 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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 76 claims for Synthroid 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 |
|---|---|---|---|---|---|
| Sumitomo Pharma America, Inc. | Unresolved — no canonical attribution shown | $25.96 | 51.5% | 1 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $24.42 | 48.5% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $50.38 | 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
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| GEMTESA Normalized: gemtesa |
Drug | Sumitomo Pharma America, Inc. | $25.96 | 1 | 2025 |
Source payment records
|
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $24.42 | 1 | 2025 |
Source payment records
|
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $24.42 | 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.
| Paying company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | SYNTHROID open payments reported associated product |
CMS Open Payments — General Payments 10655 supporting records · 4881 recipient NPIs · example record 1201352636 |
Synthroid · 2024 Exact normalized brand match · 1 Part D row |
76 | 22 |
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 | 961 | 253 |
| Levothyroxine Sodium | Levothyroxine Sodium | 723 | 167 |
| Metoprolol Succinate | Metoprolol Succinate | 612 | 163 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 582 | 159 |
| Omeprazole | Omeprazole | 495 | 136 |
| Losartan Potassium | Losartan Potassium | 467 | 123 |
| Furosemide | Furosemide | 376 | 98 |
| Amlodipine Besylate | Amlodipine Besylate | 364 | 95 |
| Lisinopril | Lisinopril | 329 | 98 |
| Gabapentin | Gabapentin | 314 | 75 |
| Pantoprazole Sodium | Pantoprazole Sodium | 311 | 78 |
| Hydrochlorothiazide | Hydrochlorothiazide | 267 | 69 |
| Montelukast Sodium | Montelukast Sodium | 260 | 71 |
| Metformin Hcl | Metformin Hcl | 230 | 63 |
| Simvastatin | Simvastatin | 229 | 59 |
| Potassium Chloride | Potassium Chloride | 204 | 50 |
| Eliquis | Apixaban | 176 | 35 |
| Sertraline Hcl | Sertraline Hcl | 172 | 52 |
| Alprazolam | Alprazolam | 171 | 42 |
| Tramadol Hcl | Tramadol Hcl | 171 | 40 |
| Metoprolol Tartrate | Metoprolol Tartrate | 154 | 42 |
| Ozempic | Semaglutide | 151 | 28 |
| Repaglinide | Repaglinide | 151 | 39 |
| Duloxetine Hcl | Duloxetine Hcl | 143 | 34 |
| Jardiance | Empagliflozin | 139 | 32 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 137 | 44 |
| Valsartan | Valsartan | 135 | 31 |
| Xarelto | Rivaroxaban | 135 | 34 |
| Pravastatin Sodium | Pravastatin Sodium | 134 | 35 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 133 | 112 |
| Prednisone | Prednisone | 128 | 78 |
| Tamsulosin Hcl | Tamsulosin Hcl | 127 | 42 |
| Zolpidem Tartrate | Zolpidem Tartrate | 127 | 19 |
| Alendronate Sodium | Alendronate Sodium | 123 | 30 |
| Farxiga | Dapagliflozin Propanediol | 118 | 22 |
| Allopurinol | Allopurinol | 115 | 31 |
| Carvedilol | Carvedilol | 112 | 27 |
| Clopidogrel | Clopidogrel Bisulfate | 107 | 30 |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 101 | 88 |
| Fluticasone Propionate | Fluticasone Propionate | 101 | 36 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 101 | 30 |
| Pregabalin | Pregabalin | 95 | 11 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 93 | 42 |
| Glimepiride | Glimepiride | 91 | 27 |
| Escitalopram Oxalate | Escitalopram Oxalate | 90 | 26 |
| Famotidine | Famotidine | 90 | 26 |
| Donepezil Hcl | Donepezil Hcl | 89 | 18 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 89 | 25 |
| Ezetimibe | Ezetimibe | 85 | 23 |
| Atenolol | Atenolol | 83 | 22 |
| Buspirone Hcl | Buspirone Hcl | 83 | 17 |
| Metformin Hcl Er | Metformin Hcl | 83 | 25 |
| Trazodone Hcl | Trazodone Hcl | 81 | 20 |
| Meloxicam | Meloxicam | 77 | 22 |
| Synthroid | Levothyroxine Sodium | 76 | 22 |
| Memantine Hcl | Memantine Hcl | 74 | 11 |
| Warfarin Sodium | Warfarin Sodium | 74 | 19 |
| Citalopram Hbr | Citalopram Hydrobromide | 73 | 13 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 71 | 13 |
| Oxybutynin Chloride | Oxybutynin Chloride | 69 | 18 |
| Doxycycline Hyclate | Doxycycline Hyclate | 68 | 40 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 66 | 19 |
| Celecoxib | Celecoxib | 63 | 14 |
| Hydralazine Hcl | Hydralazine Hcl | 57 | 19 |
| Rybelsus | Semaglutide | 57 | suppressed |
| Amoxicillin | Amoxicillin | 55 | 29 |
| Azithromycin | Azithromycin | 54 | 48 |
| Glipizide | Glipizide | 54 | 15 |
| Quetiapine Fumarate | Quetiapine Fumarate | 54 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 53 | 15 |
| Mounjaro | Tirzepatide | 52 | suppressed |
| Bumetanide | Bumetanide | 51 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 51 | suppressed |
| Finasteride | Finasteride | 51 | 13 |
| Klor-Con M20 | Potassium Chloride | 51 | 14 |
| Stiolto Respimat | Tiotropium Br/Olodaterol Hcl | 51 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 50 | 12 |
| Ropinirole Hcl | Ropinirole Hcl | 50 | 11 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 49 | 14 |
| Olmesartan-Hydrochlorothiazide | Olmesartan/Hydrochlorothiazide | 49 | 15 |
| Bupropion Xl | Bupropion Hcl | 48 | 14 |
| Fluoxetine Hcl | Fluoxetine Hcl | 48 | 11 |
| Fenofibrate | Fenofibrate | 45 | 12 |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 45 | 12 |
| Cephalexin | Cephalexin | 42 | 30 |
| Nystatin | Nystatin | 42 | 23 |
| Lansoprazole | Lansoprazole | 41 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 41 | 11 |
| Diazepam | Diazepam | 39 | 15 |
| Irbesartan | Irbesartan | 39 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 39 | 12 |
| Baclofen | Baclofen | 38 | 17 |
| Methimazole | Methimazole | 38 | 12 |
| Fluconazole | Fluconazole | 37 | 27 |
| Raloxifene Hcl | Raloxifene Hcl | 37 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 36 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 36 | 11 |
| Myrbetriq | Mirabegron | 36 | suppressed |
| Ondansetron Odt | Ondansetron | 36 | 15 |
| Acyclovir | Acyclovir | 34 | 17 |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 34 | suppressed |
| Propranolol Hcl Er | Propranolol Hcl | 34 | suppressed |
| Spironolactone | Spironolactone | 34 | suppressed |
| Levofloxacin | Levofloxacin | 33 | 27 |
| Verapamil Er | Verapamil Hcl | 31 | suppressed |
| Paxlovid | Nirmatrelvir/Ritonavir | 30 | 30 |
| Entresto | Sacubitril/Valsartan | 29 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 29 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 29 | suppressed |
| Breztri Aerosphere | Budesonide/Glycopyr/Formoterol | 28 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 28 | suppressed |
| Januvia | Sitagliptin Phosphate | 28 | suppressed |
| Lorazepam | Lorazepam | 28 | suppressed |
| Primidone | Primidone | 28 | suppressed |
| Clonazepam | Clonazepam | 27 | suppressed |
| Digoxin | Digoxin | 27 | suppressed |
| Folic Acid | Folic Acid | 27 | suppressed |
| Aripiprazole | Aripiprazole | 26 | suppressed |
| Cyanocobalamin Injection | Cyanocobalamin (Vitamin B-12) | 26 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 26 | 13 |
| Doxepin Hcl | Doxepin Hcl | 26 | suppressed |
| Lactulose | Lactulose | 26 | 14 |
| Metoclopramide Hcl | Metoclopramide Hcl | 26 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 26 | 23 |
| Levocetirizine Dihydrochloride | Levocetirizine Dihydrochloride | 24 | suppressed |
| Buprenorphine-Naloxone | Buprenorphine Hcl/Naloxone Hcl | 23 | suppressed |
| Glipizide-Metformin | Glipizide/Metformin Hcl | 23 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 22 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 22 | suppressed |
| Amiodarone Hcl | Amiodarone Hcl | 20 | suppressed |
| Hydroxychloroquine Sulfate | Hydroxychloroquine Sulfate | 20 | suppressed |
| Nateglinide | Nateglinide | 20 | suppressed |
| Novolog Flexpen | Insulin Aspart | 20 | suppressed |
| Olanzapine | Olanzapine | 20 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 20 | 17 |
| Amitriptyline Hcl | Amitriptyline Hcl | 19 | suppressed |
| Irbesartan-Hydrochlorothiazide | Irbesartan/Hydrochlorothiazide | 19 | suppressed |
| Lovastatin | Lovastatin | 19 | suppressed |
| Prolia | Denosumab | 19 | 12 |
| Methotrexate | Methotrexate Sodium | 18 | suppressed |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 17 | suppressed |
| Clonidine Hcl | Clonidine Hcl | 17 | suppressed |
| Trulicity | Dulaglutide | 17 | suppressed |
| Breo Ellipta | Fluticasone/Vilanterol | 16 | suppressed |
| Divalproex Sodium | Divalproex Sodium | 16 | suppressed |
| Invokana | Canagliflozin | 16 | suppressed |
| Solifenacin Succinate | Solifenacin Succinate | 16 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 16 | suppressed |
| Verapamil Sr | Verapamil Hcl | 16 | suppressed |
| Wegovy | Semaglutide | 16 | suppressed |
| Atenolol-Chlorthalidone | Atenolol/Chlorthalidone | 15 | suppressed |
| Levetiracetam | Levetiracetam | 15 | suppressed |
| Mometasone Furoate | Mometasone Furoate | 15 | suppressed |
| Terazosin Hcl | Terazosin Hcl | 15 | suppressed |
| Tradjenta | Linagliptin | 15 | suppressed |
| Clindamycin Hcl | Clindamycin Hcl | 14 | 13 |
| Desvenlafaxine Succinate Er | Desvenlafaxine Succinate | 14 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 14 | suppressed |
| Estradiol | Estradiol | 14 | suppressed |
| Janumet | Sitagliptin Phos/Metformin Hcl | 14 | suppressed |
| Neomycin-Polymyxin-Hydrocort | Neomycin/Polymyxin B/Hydrocort | 14 | suppressed |
| Tolterodine Tartrate Er | Tolterodine Tartrate | 14 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 13 | suppressed |
| Glipizide Er | Glipizide | 13 | suppressed |
| Kerendia | Finerenone | 13 | suppressed |
| Nano 2nd Gen Pen Needle | Pen Needle, Diabetic | 13 | suppressed |
| Ramipril | Ramipril | 13 | suppressed |
| Tolterodine Tartrate | Tolterodine Tartrate | 13 | suppressed |
| Ultra-Fine Short Pen Needle | Pen Needle, Diabetic | 13 | suppressed |
| Cilostazol | Cilostazol | 12 | suppressed |
| Dilt-Xr | Diltiazem Hcl | 12 | suppressed |
| Dulera | Mometasone/Formoterol | 12 | suppressed |
| Lacosamide | Lacosamide | 12 | suppressed |
| Livalo | Pitavastatin Calcium | 12 | suppressed |
| Nebivolol Hcl | Nebivolol Hcl | 12 | suppressed |
| Omega-3 Acid Ethyl Esters | Omega-3 Acid Ethyl Esters | 12 | suppressed |
| Premarin | Estrogens, Conjugated | 12 | suppressed |
| Temazepam | Temazepam | 12 | suppressed |
| Venlafaxine Hcl | Venlafaxine Hcl | 12 | suppressed |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 11 | suppressed |
| Carisoprodol | Carisoprodol | 11 | suppressed |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 11 | suppressed |
| Fenofibrate | Fenofibrate,micronized | 11 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 11 | suppressed |
| Mirtazapine | Mirtazapine | 11 | suppressed |
| Nitroglycerin | Nitroglycerin | 11 | suppressed |
| Sildenafil Citrate | Sildenafil Citrate | 11 | suppressed |
| Spiriva Respimat | Tiotropium Bromide | 11 | suppressed |
| Terconazole | Terconazole | 11 | suppressed |
| Theophylline Er | Theophylline Anhydrous | 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 | $50.38 · 2 records | Sumitomo Pharma America, Inc. | GEMTESA, QULIPTA, UBRELVY | 1 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- How do you evaluate evidence when you have a financial relationship with ABBVIE 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