Healthcare provider profile · identity verified

Jong Lak Jin, MD

Internal Medicine · CHICAGO, IL · NPI 1225062912

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	3397	159
Amlodipine Besylate	Amlodipine Besylate	1932	95
Metformin Hcl	Metformin Hcl	1667	80
Famotidine	Famotidine	1281	52
Levothyroxine Sodium	Levothyroxine Sodium	1191	56
Metoprolol Tartrate	Metoprolol Tartrate	1158	56
Januvia	Sitagliptin Phosphate	1027	46
Gabapentin	Gabapentin	915	50
Tamsulosin Hcl	Tamsulosin Hcl	840	38
Mirtazapine	Mirtazapine	715	39
Pantoprazole Sodium	Pantoprazole Sodium	652	36
Losartan Potassium	Losartan Potassium	620	40
Donepezil Hcl	Donepezil Hcl	616	31
Simvastatin	Simvastatin	578	23
Metoprolol Succinate	Metoprolol Succinate	575	30
Lisinopril	Lisinopril	515	35
Quetiapine Fumarate	Quetiapine Fumarate	463	31
Divalproex Sodium	Divalproex Sodium	431	29
Omeprazole	Omeprazole	429	26
Furosemide	Furosemide	426	29
Eliquis	Apixaban	401	27
Levetiracetam	Levetiracetam	389	18
Benztropine Mesylate	Benztropine Mesylate	382	21
Trazodone Hcl	Trazodone Hcl	377	36
Risperidone	Risperidone	372	33
Carvedilol	Carvedilol	336	27
Potassium Chloride	Potassium Chloride	289	34
Olanzapine	Olanzapine	261	24
Memantine Hcl	Memantine Hcl	259	20
Nifedipine Er	Nifedipine	252	17
Oxybutynin Chloride Er	Oxybutynin Chloride	247	12
Clopidogrel	Clopidogrel Bisulfate	222	15
Lithium Carbonate	Lithium Carbonate	216	suppressed
Jardiance	Empagliflozin	202	15
Tradjenta	Linagliptin	180	suppressed
Latanoprost	Latanoprost	179	30
Sertraline Hcl	Sertraline Hcl	171	15
Midodrine Hcl	Midodrine Hcl	170	14
Spironolactone	Spironolactone	162	11
Hydralazine Hcl	Hydralazine Hcl	160	14
Lamotrigine	Lamotrigine	147	suppressed
Sucralfate	Sucralfate	147	suppressed
Carbamazepine	Carbamazepine	144	suppressed
Finasteride	Finasteride	137	12
Valproic Acid	Valproic Acid (As Sodium Salt)	137	13
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	132	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	121	11
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	120	21
Lactulose	Lactulose	115	14
Allopurinol	Allopurinol	113	suppressed
Breo Ellipta	Fluticasone/Vilanterol	110	18
Escitalopram Oxalate	Escitalopram Oxalate	109	suppressed
Ibuprofen	Ibuprofen	109	24
Prazosin Hcl	Prazosin Hcl	108	suppressed
Topiramate	Topiramate	106	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	104	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	104	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	103	suppressed
Clozapine	Clozapine	103	suppressed
Duloxetine Hcl	Duloxetine Hcl	103	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	97	suppressed
Haloperidol Decanoate	Haloperidol Decanoate	95	15
Ziprasidone Hcl	Ziprasidone Hcl	93	suppressed
Atenolol	Atenolol	91	suppressed
Divalproex Sodium Er	Divalproex Sodium	89	suppressed
Fluvoxamine Maleate	Fluvoxamine Maleate	88	suppressed
Montelukast Sodium	Montelukast Sodium	87	suppressed
Bethanechol Chloride	Bethanechol Chloride	85	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	83	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	78	42
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	78	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	77	23
Triamcinolone Acetonide	Triamcinolone Acetonide	76	24
Gemfibrozil	Gemfibrozil	75	suppressed
Baclofen	Baclofen	73	suppressed
Fiasp	Insulin Aspart (Niacinamide)	72	13
Haloperidol	Haloperidol	69	18
Fiasp Flextouch	Insulin Aspart (Niacinamide)	67	suppressed
Amantadine	Amantadine Hcl	65	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	64	suppressed
Naproxen	Naproxen	64	suppressed
Zonisamide	Zonisamide	64	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	62	suppressed
Fenofibrate	Fenofibrate	61	suppressed
Insulin Lispro	Insulin Lispro	61	20
Chlorpromazine Hcl	Chlorpromazine Hcl	59	suppressed
Citalopram Hbr	Citalopram Hydrobromide	59	suppressed
Gemtesa	Vibegron	59	suppressed
Alendronate Sodium	Alendronate Sodium	56	suppressed
Clonidine Hcl	Clonidine Hcl	56	suppressed
Enalapril Maleate	Enalapril Maleate	56	suppressed
Fluphenazine Hcl	Fluphenazine Hcl	56	suppressed
Enulose	Lactulose	55	suppressed
Ketoconazole	Ketoconazole	55	suppressed
Rivastigmine	Rivastigmine Tartrate	55	suppressed
Aripiprazole	Aripiprazole	54	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	52	suppressed
Bupropion Xl	Bupropion Hcl	51	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	51	suppressed
Terazosin Hcl	Terazosin Hcl	51	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	48	suppressed
Fluticasone Propionate	Fluticasone Propionate	48	suppressed
Meclizine Hcl	Meclizine Hcl	48	suppressed
Oxcarbazepine	Oxcarbazepine	48	suppressed
Ramipril	Ramipril	48	suppressed
Ventolin Hfa	Albuterol Sulfate	48	29
Memantine Hcl Er	Memantine Hcl	47	suppressed
Buspirone Hcl	Buspirone Hcl	46	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	42	suppressed
Prednisone	Prednisone	41	14
Celecoxib	Celecoxib	40	suppressed
Fenofibrate	Fenofibrate,micronized	40	suppressed
Anastrozole	Anastrozole	39	suppressed
Cephalexin	Cephalexin	36	31
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	36	suppressed
Lovastatin	Lovastatin	33	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	33	suppressed
Lurasidone Hcl	Lurasidone Hcl	32	suppressed
Methimazole	Methimazole	32	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	31	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	31	suppressed
Ezetimibe	Ezetimibe	31	suppressed
Chlorthalidone	Chlorthalidone	29	suppressed
Diclofenac Sodium	Diclofenac Sodium	29	suppressed
Flecainide Acetate	Flecainide Acetate	29	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	28	11
Brimonidine Tartrate	Brimonidine Tartrate	28	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	28	suppressed
Timolol Maleate	Timolol Maleate	28	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	26	suppressed
Linzess	Linaclotide	26	suppressed
Megestrol Acetate	Megestrol Acetate	26	suppressed
Pyridostigmine Bromide	Pyridostigmine Bromide	26	suppressed
Benazepril-Hydrochlorothiazide	Benazepril/Hydrochlorothiazide	25	suppressed
Clotrimazole	Clotrimazole	25	suppressed
Estradiol	Estradiol	25	suppressed
Incruse Ellipta	Umeclidinium Bromide	25	suppressed
Invokana	Canagliflozin	25	suppressed
Tramadol Hcl	Tramadol Hcl	24	suppressed
Erythromycin	Erythromycin Base	23	14
Glipizide Er	Glipizide	23	suppressed
Invega Sustenna	Paliperidone Palmitate	23	suppressed
Nystatin	Nystatin	23	11
Propranolol Hcl	Propranolol Hcl	23	suppressed
Symbicort	Budesonide/Formoterol Fumarate	23	suppressed
Warfarin Sodium	Warfarin Sodium	23	suppressed
Amiodarone Hcl	Amiodarone Hcl	22	suppressed
Entresto	Sacubitril/Valsartan	21	suppressed
Loperamide	Loperamide Hcl	21	suppressed
Sevelamer Carbonate	Sevelamer Carbonate	21	suppressed
Xifaxan	Rifaximin	21	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	20	16
Haloperidol Lactate	Haloperidol Lactate	20	16
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	20	11
Cyclosporine	Cyclosporine	19	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	19	suppressed
Lidocaine	Lidocaine	19	suppressed
Dorzolamide Hcl	Dorzolamide Hcl	18	suppressed
Heparin Sodium	Heparin Sodium,porcine	18	suppressed
Meloxicam	Meloxicam	18	suppressed
Xarelto	Rivaroxaban	18	suppressed
Novolog	Insulin Aspart	17	suppressed
Humalog	Insulin Lispro	16	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	16	suppressed
Vascepa	Icosapent Ethyl	16	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	15	suppressed
Labetalol Hcl	Labetalol Hcl	15	suppressed
Novolog Flexpen	Insulin Aspart	15	suppressed
Nystop	Nystatin	15	suppressed
Clobetasol Propionate	Clobetasol Propionate	14	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	14	suppressed
Humira(Cf) Pen	Adalimumab	14	suppressed
Ondansetron Hcl	Ondansetron Hcl	14	suppressed
Acarbose	Acarbose	13	suppressed
Clobazam	Clobazam	13	suppressed
Humalog Kwikpen U-100	Insulin Lispro	13	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	13	suppressed
Methenamine Hippurate	Methenamine Hippurate	13	suppressed
Pregabalin	Pregabalin	13	suppressed
Albuterol Sulfate	Albuterol Sulfate	12	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	12	suppressed
Amoxicillin	Amoxicillin	12	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	12	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	12	12
Briviact	Brivaracetam	12	suppressed
Creon	Lipase/Protease/Amylase	12	suppressed
Digoxin	Digoxin	12	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	12	suppressed
Brimonidine Tartrate-Timolol	Brimonidine Tartrate/Timolol	11	suppressed
Levemir	Insulin Detemir	11	suppressed
Sodium Polystyrene Sulfonate	Sodium Polystyrene Sulfonate	11	suppressed
Telmisartan	Telmisartan	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