Healthcare provider profile · identity verified

Marcos N Sunga, MD

Internal Medicine · ROSICLARE, IL · NPI 1255331625

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
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	663	89
Omeprazole	Omeprazole	430	65
Furosemide	Furosemide	376	82
Atorvastatin Calcium	Atorvastatin Calcium	369	71
Gabapentin	Gabapentin	333	58
Potassium Chloride	Potassium Chloride	330	73
Amlodipine Besylate	Amlodipine Besylate	328	60
Pantoprazole Sodium	Pantoprazole Sodium	302	55
Levothyroxine Sodium	Levothyroxine Sodium	290	52
Alprazolam	Alprazolam	257	44
Rosuvastatin Calcium	Rosuvastatin Calcium	238	52
Benazepril Hcl	Benazepril Hcl	221	34
Losartan Potassium	Losartan Potassium	215	43
Famotidine	Famotidine	211	45
Ropinirole Hcl	Ropinirole Hcl	209	25
Tamsulosin Hcl	Tamsulosin Hcl	199	39
Lisinopril	Lisinopril	181	41
Hydrochlorothiazide	Hydrochlorothiazide	171	36
Metoprolol Tartrate	Metoprolol Tartrate	160	31
Metformin Hcl	Metformin Hcl	159	37
Montelukast Sodium	Montelukast Sodium	159	30
Albuterol Sulfate Hfa	Albuterol Sulfate	153	35
Metoprolol Succinate	Metoprolol Succinate	151	39
Prednisone	Prednisone	145	86
Carvedilol	Carvedilol	137	29
Lorazepam	Lorazepam	130	22
Diazepam	Diazepam	126	16
Buspirone Hcl	Buspirone Hcl	120	19
Clopidogrel	Clopidogrel Bisulfate	120	25
Spironolactone	Spironolactone	117	18
Tramadol Hcl	Tramadol Hcl	116	28
Glimepiride	Glimepiride	115	23
Eliquis	Apixaban	113	21
Pregabalin	Pregabalin	110	17
Clonazepam	Clonazepam	106	11
Allopurinol	Allopurinol	105	21
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	104	22
Duloxetine Hcl	Duloxetine Hcl	104	22
Isosorbide Mononitrate Er	Isosorbide Mononitrate	104	21
Trazodone Hcl	Trazodone Hcl	104	19
Escitalopram Oxalate	Escitalopram Oxalate	103	19
Sertraline Hcl	Sertraline Hcl	101	12
Januvia	Sitagliptin Phosphate	96	18
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	96	12
Ondansetron Hcl	Ondansetron Hcl	94	23
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	93	25
Ventolin Hfa	Albuterol Sulfate	93	16
Esomeprazole Magnesium	Esomeprazole Magnesium	84	14
Farxiga	Dapagliflozin Propanediol	84	19
Tizanidine Hcl	Tizanidine Hcl	83	14
Atenolol	Atenolol	80	16
Clonidine Hcl	Clonidine Hcl	77	13
Doxycycline Hyclate	Doxycycline Hyclate	76	52
Fluticasone Propionate	Fluticasone Propionate	75	16
Cephalexin	Cephalexin	74	55
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	73	16
Azithromycin	Azithromycin	70	57
Cefdinir	Cefdinir	69	52
Mirtazapine	Mirtazapine	65	suppressed
Pravastatin Sodium	Pravastatin Sodium	61	19
Simvastatin	Simvastatin	61	13
Tradjenta	Linagliptin	58	suppressed
Ezetimibe	Ezetimibe	57	12
Ozempic	Semaglutide	56	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	55	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	51	13
Fluoxetine Hcl	Fluoxetine Hcl	51	suppressed
Hydralazine Hcl	Hydralazine Hcl	51	14
Trulicity	Dulaglutide	51	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	50	13
Oxybutynin Chloride	Oxybutynin Chloride	50	suppressed
Sucralfate	Sucralfate	50	suppressed
Oxycodone Hcl	Oxycodone Hcl	49	suppressed
Donepezil Hcl	Donepezil Hcl	47	suppressed
Fentanyl	Fentanyl	47	suppressed
Levetiracetam	Levetiracetam	47	suppressed
Amoxicillin	Amoxicillin	46	38
Topiramate	Topiramate	46	suppressed
Primidone	Primidone	45	suppressed
Olanzapine	Olanzapine	44	suppressed
Warfarin Sodium	Warfarin Sodium	43	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	42	42
Morphine Sulfate Er	Morphine Sulfate	42	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	41	15
Meloxicam	Meloxicam	41	12
Citalopram Hbr	Citalopram Hydrobromide	40	suppressed
Linzess	Linaclotide	40	suppressed
Jardiance	Empagliflozin	38	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	37	suppressed
Bupropion Xl	Bupropion Hcl	37	suppressed
Glipizide	Glipizide	37	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	36	suppressed
Carbamazepine	Carbamazepine	35	suppressed
Alendronate Sodium	Alendronate Sodium	34	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	34	23
Triamcinolone Acetonide	Triamcinolone Acetonide	34	suppressed
Xarelto	Rivaroxaban	34	suppressed
Nitroglycerin	Nitroglycerin	33	28
Cilostazol	Cilostazol	31	suppressed
Ibuprofen	Ibuprofen	31	suppressed
Nystatin	Nystatin	31	19
Paroxetine Hcl	Paroxetine Hcl	31	suppressed
Doxepin Hcl	Doxepin Hcl	29	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	28	suppressed
Brilinta	Ticagrelor	27	suppressed
Carbamazepine Er	Carbamazepine	27	suppressed
Clindamycin Hcl	Clindamycin Hcl	27	23
Fenofibrate	Fenofibrate	27	suppressed
Levofloxacin	Levofloxacin	27	24
Digoxin	Digoxin	26	suppressed
Folic Acid	Folic Acid	26	suppressed
Nebivolol Hcl	Nebivolol Hcl	26	suppressed
Phenobarbital	Phenobarbital	26	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	26	20
Aptiom	Eslicarbazepine Acetate	25	suppressed
Creon	Lipase/Protease/Amylase	25	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	24	suppressed
Breo Ellipta	Fluticasone/Vilanterol	24	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	24	suppressed
Oxymorphone Hcl Er	Oxymorphone Hcl	24	suppressed
Promethazine Hcl	Promethazine Hcl	24	suppressed
Torsemide	Torsemide	24	suppressed
Humalog Kwikpen U-100	Insulin Lispro	23	suppressed
Lamotrigine	Lamotrigine	22	suppressed
Risperidone	Risperidone	22	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	22	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	21	suppressed
Ondansetron Odt	Ondansetron	21	14
Quetiapine Fumarate	Quetiapine Fumarate	21	suppressed
Verapamil Er	Verapamil Hcl	21	suppressed
Bupropion Hcl Sr	Bupropion Hcl	20	suppressed
Diclofenac Sodium	Diclofenac Sodium	20	suppressed
Estradiol	Estradiol	20	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Amiodarone Hcl	Amiodarone Hcl	19	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	19	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	19	12
Midodrine Hcl	Midodrine Hcl	19	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	18	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	18	suppressed
Memantine Hcl	Memantine Hcl	18	suppressed
Ranolazine Er	Ranolazine	18	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	18	suppressed
Valacyclovir	Valacyclovir Hcl	18	suppressed
Baclofen	Baclofen	17	suppressed
Fluconazole	Fluconazole	17	12
Lidocaine	Lidocaine	17	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	17	suppressed
Pentoxifylline	Pentoxifylline	17	suppressed
Dilt-Xr	Diltiazem Hcl	16	suppressed
Incruse Ellipta	Umeclidinium Bromide	16	suppressed
Nexium	Esomeprazole Magnesium	16	suppressed
Niacin Er	Niacin	16	suppressed
Prazosin Hcl	Prazosin Hcl	16	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	16	suppressed
Wegovy	Semaglutide	16	suppressed
Ziprasidone Hcl	Ziprasidone Hcl	16	suppressed
Dulera	Mometasone/Formoterol	15	suppressed
Dutasteride	Dutasteride	15	suppressed
Hydrocortisone	Hydrocortisone	15	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Myrbetriq	Mirabegron	15	suppressed
Entresto	Sacubitril/Valsartan	14	suppressed
Lovastatin	Lovastatin	14	suppressed
Metronidazole	Metronidazole	14	suppressed
Naltrexone Hcl	Naltrexone Hcl	14	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	14	suppressed
Valsartan	Valsartan	14	suppressed
Zenpep	Lipase/Protease/Amylase	14	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	13	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	13	suppressed
Divalproex Sodium	Divalproex Sodium	13	suppressed
Erythromycin	Erythromycin Base In Ethanol	13	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	13	suppressed
Naloxone Hcl	Naloxone Hcl	13	12
Novolog Flexpen	Insulin Aspart	13	suppressed
Trueplus Pen Needle	Pen Needle, Diabetic	13	suppressed
Clobetasol Propionate	Clobetasol Propionate	12	suppressed
Dexamethasone	Dexamethasone	12	12
Easy Touch Alcohol Prep Pads	Alcohol Antiseptic Pads	12	suppressed
Eletriptan Hbr	Eletriptan Hydrobromide	12	suppressed
Fenofibrate	Fenofibrate,micronized	12	suppressed
Ketoconazole	Ketoconazole	12	suppressed
Naproxen	Naproxen	12	suppressed
Propafenone Hcl	Propafenone Hcl	12	suppressed
Roflumilast	Roflumilast	12	suppressed
Synthroid	Levothyroxine Sodium	12	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	11	11
Bumetanide	Bumetanide	11	suppressed
Butalbital-Aspirin-Caffeine	Butalbital/Aspirin/Caffeine	11	suppressed
Cartia Xt	Diltiazem Hcl	11	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	11	suppressed
Finasteride	Finasteride	11	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	11	suppressed
Phenytoin	Phenytoin	11	suppressed
Temazepam	Temazepam	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