Healthcare provider profile · identity verified

Thilina Praneethbogategedara Marasinghe, MD

Internal Medicine · SAN ANTONIO, TX · NPI 1821160938

Profile state: partd only Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

We did not find matching Open Payments records for this doctor in 2025.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

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.

There is no payer-company set available for this comparison.

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	610	218
Levothyroxine Sodium	Levothyroxine Sodium	441	154
Lisinopril	Lisinopril	410	145
Amlodipine Besylate	Amlodipine Besylate	382	151
Rosuvastatin Calcium	Rosuvastatin Calcium	318	117
Losartan Potassium	Losartan Potassium	315	124
Metformin Hcl	Metformin Hcl	262	105
Gabapentin	Gabapentin	202	84
Montelukast Sodium	Montelukast Sodium	201	75
Omeprazole	Omeprazole	200	77
Hydrochlorothiazide	Hydrochlorothiazide	194	72
Simvastatin	Simvastatin	184	72
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	164	44
Alendronate Sodium	Alendronate Sodium	160	54
Pantoprazole Sodium	Pantoprazole Sodium	159	61
Metoprolol Succinate	Metoprolol Succinate	156	69
Albuterol Sulfate Hfa	Albuterol Sulfate	138	53
Carvedilol	Carvedilol	134	53
Metoprolol Tartrate	Metoprolol Tartrate	133	50
Furosemide	Furosemide	128	55
Trazodone Hcl	Trazodone Hcl	117	49
Glipizide Er	Glipizide	108	40
Tamsulosin Hcl	Tamsulosin Hcl	108	46
Fluticasone Propionate	Fluticasone Propionate	107	49
Jardiance	Empagliflozin	104	39
Nifedipine Er	Nifedipine	101	37
Tizanidine Hcl	Tizanidine Hcl	95	39
Tramadol Hcl	Tramadol Hcl	92	36
Eliquis	Apixaban	84	35
Alprazolam	Alprazolam	83	18
Escitalopram Oxalate	Escitalopram Oxalate	81	25
Pravastatin Sodium	Pravastatin Sodium	81	33
Chlorthalidone	Chlorthalidone	78	29
Clopidogrel	Clopidogrel Bisulfate	72	32
Mounjaro	Tirzepatide	70	15
Glipizide	Glipizide	69	28
Potassium Chloride	Potassium Chloride	66	26
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	65	19
Meloxicam	Meloxicam	63	31
Citalopram Hbr	Citalopram Hydrobromide	62	20
Duloxetine Hcl	Duloxetine Hcl	61	26
Metformin Hcl Er	Metformin Hcl	60	25
Lovastatin	Lovastatin	59	18
Spironolactone	Spironolactone	58	24
Lorazepam	Lorazepam	55	20
Glimepiride	Glimepiride	53	19
Farxiga	Dapagliflozin Propanediol	52	21
Sertraline Hcl	Sertraline Hcl	52	19
Buspirone Hcl	Buspirone Hcl	50	17
Enalapril Maleate	Enalapril Maleate	50	19
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	50	38
Finasteride	Finasteride	49	18
Myrbetriq	Mirabegron	49	18
Pioglitazone Hcl	Pioglitazone Hcl	49	19
Allopurinol	Allopurinol	46	18
Isosorbide Mononitrate Er	Isosorbide Mononitrate	46	16
Venlafaxine Hcl Er	Venlafaxine Hcl	44	16
Ibuprofen	Ibuprofen	41	22
Rybelsus	Semaglutide	41	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	39	suppressed
Paroxetine Hcl	Paroxetine Hcl	39	suppressed
Famotidine	Famotidine	38	14
Ozempic	Semaglutide	36	11
Atenolol	Atenolol	35	14
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	35	11
Ondansetron Odt	Ondansetron	35	17
Azithromycin	Azithromycin	34	30
Trulicity	Dulaglutide	34	suppressed
Warfarin Sodium	Warfarin Sodium	34	suppressed
Donepezil Hcl	Donepezil Hcl	33	15
Oxybutynin Chloride	Oxybutynin Chloride	31	15
Prednisone	Prednisone	31	23
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	29	15
Mirtazapine	Mirtazapine	29	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	28	25
Clonazepam	Clonazepam	27	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	25	15
Fluconazole	Fluconazole	24	14
Januvia	Sitagliptin Phosphate	24	suppressed
Nystatin	Nystatin	24	suppressed
Ondansetron Hcl	Ondansetron Hcl	24	19
Symbicort	Budesonide/Formoterol Fumarate	24	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	23	15
Colchicine	Colchicine	23	14
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	23	13
Topiramate	Topiramate	23	suppressed
Methylprednisolone	Methylprednisolone	22	20
Amiodarone Hcl	Amiodarone Hcl	21	suppressed
Fenofibrate	Fenofibrate	21	suppressed
Mupirocin	Mupirocin	21	17
Paxlovid	Nirmatrelvir/Ritonavir	21	21
Cephalexin	Cephalexin	20	18
Doxycycline Hyclate	Doxycycline Hyclate	20	18
Esomeprazole Magnesium	Esomeprazole Magnesium	20	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	20	11
Nitroglycerin	Nitroglycerin	20	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	19	suppressed
Hydralazine Hcl	Hydralazine Hcl	18	suppressed
Pregabalin	Pregabalin	18	suppressed
Primidone	Primidone	18	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	18	suppressed
Eszopiclone	Eszopiclone	17	suppressed
Spiriva Handihaler	Tiotropium Bromide	17	suppressed
Xarelto	Rivaroxaban	17	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	17	suppressed
Propranolol Hcl	Propranolol Hcl	16	suppressed
Baclofen	Baclofen	15	11
Candesartan Cilexetil	Candesartan Cilexetil	15	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	15	suppressed
Naproxen	Naproxen	15	suppressed
Breo Ellipta	Fluticasone/Vilanterol	14	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	14	suppressed
Cefuroxime	Cefuroxime Axetil	14	12
Terazosin Hcl	Terazosin Hcl	14	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	14	suppressed
Bupropion Xl	Bupropion Hcl	13	suppressed
Celecoxib	Celecoxib	13	suppressed
Ezetimibe	Ezetimibe	13	suppressed
Levetiracetam	Levetiracetam	13	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	13	suppressed
Sildenafil Citrate	Sildenafil Citrate	13	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	13	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Verapamil Er	Verapamil Hcl	13	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	13	suppressed
Benazepril Hcl	Benazepril Hcl	12	suppressed
Ibandronate Sodium	Ibandronate Sodium	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Prazosin Hcl	Prazosin Hcl	12	suppressed
Synthroid	Levothyroxine Sodium	12	suppressed
Telmisartan	Telmisartan	12	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	12	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	11	suppressed
Clonidine Hcl	Clonidine Hcl	11	suppressed
Gemfibrozil	Gemfibrozil	11	suppressed
Incontrol Pen Needle	Pen Needle, Diabetic	11	suppressed
Lubiprostone	Lubiprostone	11	suppressed
Memantine Hcl	Memantine Hcl	11	suppressed
Ramipril	Ramipril	11	suppressed
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	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	—	—	—	—	—
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

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error