Healthcare provider profile · identity verified

Shawn C. Chen, M.D.

Internal Medicine · AUSTIN, TX · NPI 1710952668

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
Donepezil Hcl	Donepezil Hcl	811	91
Atorvastatin Calcium	Atorvastatin Calcium	765	87
Escitalopram Oxalate	Escitalopram Oxalate	658	76
Quetiapine Fumarate	Quetiapine Fumarate	594	59
Memantine Hcl	Memantine Hcl	464	53
Amlodipine Besylate	Amlodipine Besylate	463	62
Levothyroxine Sodium	Levothyroxine Sodium	461	51
Omeprazole	Omeprazole	446	54
Losartan Potassium	Losartan Potassium	443	50
Montelukast Sodium	Montelukast Sodium	409	75
Furosemide	Furosemide	391	63
Gabapentin	Gabapentin	371	45
Fluticasone Propionate	Fluticasone Propionate	367	95
Trazodone Hcl	Trazodone Hcl	329	51
Celecoxib	Celecoxib	272	59
Lisinopril	Lisinopril	251	30
Tamsulosin Hcl	Tamsulosin Hcl	249	32
Divalproex Sodium	Divalproex Sodium	228	32
Duloxetine Hcl	Duloxetine Hcl	211	23
Sertraline Hcl	Sertraline Hcl	209	25
Pantoprazole Sodium	Pantoprazole Sodium	202	30
Eliquis	Apixaban	187	30
Metoprolol Succinate	Metoprolol Succinate	184	24
Potassium Chloride	Potassium Chloride	159	25
Myrbetriq	Mirabegron	157	20
Januvia	Sitagliptin Phosphate	144	16
Mirtazapine	Mirtazapine	134	18
Loperamide	Loperamide Hcl	132	70
Tramadol Hcl	Tramadol Hcl	128	27
Rosuvastatin Calcium	Rosuvastatin Calcium	126	13
Famotidine	Famotidine	124	18
Spironolactone	Spironolactone	121	18
Metoprolol Tartrate	Metoprolol Tartrate	119	17
Fluoxetine Hcl	Fluoxetine Hcl	111	11
Midodrine Hcl	Midodrine Hcl	110	15
Memantine Hcl Er	Memantine Hcl	108	11
Alendronate Sodium	Alendronate Sodium	101	15
Torsemide	Torsemide	97	16
Lorazepam	Lorazepam	92	23
Carvedilol	Carvedilol	85	suppressed
Finasteride	Finasteride	84	12
Levetiracetam	Levetiracetam	84	suppressed
Hydralazine Hcl	Hydralazine Hcl	81	19
Methenamine Hippurate	Methenamine Hippurate	81	11
Clopidogrel	Clopidogrel Bisulfate	79	12
Venlafaxine Hcl Er	Venlafaxine Hcl	79	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	77	16
Risperidone	Risperidone	76	13
Nystatin	Nystatin	73	34
Xarelto	Rivaroxaban	72	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	71	47
Bupropion Xl	Bupropion Hcl	70	suppressed
Digoxin	Digoxin	67	suppressed
Ondansetron Hcl	Ondansetron Hcl	67	52
Allopurinol	Allopurinol	64	suppressed
Bumetanide	Bumetanide	55	suppressed
Azelastine Hcl	Azelastine Hcl	54	22
Metformin Hcl	Metformin Hcl	54	suppressed
Jardiance	Empagliflozin	49	suppressed
Pravastatin Sodium	Pravastatin Sodium	49	suppressed
Pregabalin	Pregabalin	49	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	46	suppressed
Levofloxacin	Levofloxacin	45	34
Simvastatin	Simvastatin	45	suppressed
Ropinirole Hcl	Ropinirole Hcl	43	suppressed
Ezetimibe	Ezetimibe	42	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	41	14
Carbidopa-Levodopa	Carbidopa/Levodopa	40	suppressed
Citalopram Hbr	Citalopram Hydrobromide	39	suppressed
Buprenorphine	Buprenorphine	37	suppressed
Sotalol	Sotalol Hcl	37	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	36	suppressed
Metformin Hcl Er	Metformin Hcl	35	suppressed
Bupropion Hcl Sr	Bupropion Hcl	34	suppressed
Prednisone	Prednisone	34	suppressed
Alprazolam	Alprazolam	33	16
Doxazosin Mesylate	Doxazosin Mesylate	33	suppressed
Ipratropium Bromide	Ipratropium Bromide	32	suppressed
Nebivolol Hcl	Nebivolol Hcl	29	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	29	15
Breo Ellipta	Fluticasone/Vilanterol	28	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	28	suppressed
Clonazepam	Clonazepam	27	suppressed
Diclofenac Sodium	Diclofenac Sodium	25	suppressed
Irbesartan	Irbesartan	25	suppressed
Amiodarone Hcl	Amiodarone Hcl	24	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	24	17
Linzess	Linaclotide	24	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	24	suppressed
Paroxetine Hcl	Paroxetine Hcl	24	suppressed
Cephalexin	Cephalexin	23	suppressed
Diltiazem Hcl	Diltiazem Hcl	23	suppressed
Hydrocortisone	Hydrocortisone	23	suppressed
Lacosamide	Lacosamide	23	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	22	suppressed
Cefadroxil	Cefadroxil	22	22
Primidone	Primidone	22	suppressed
Rivastigmine	Rivastigmine Tartrate	22	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	22	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	21	suppressed
Divalproex Sodium Er	Divalproex Sodium	20	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	20	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	20	suppressed
Latanoprost	Latanoprost	20	suppressed
Enalapril Maleate	Enalapril Maleate	19	suppressed
Fluconazole	Fluconazole	18	suppressed
Soliqua 100-33	Insulin Glargine/Lixisenatide	18	suppressed
Synthroid	Levothyroxine Sodium	18	suppressed
Glipizide	Glipizide	17	suppressed
Valacyclovir	Valacyclovir Hcl	17	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	16	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	16	suppressed
Mupirocin	Mupirocin	16	11
Nyamyc	Nystatin	15	suppressed
Telmisartan	Telmisartan	15	suppressed
Acyclovir	Acyclovir	14	suppressed
Olanzapine	Olanzapine	14	suppressed
Bupropion Hcl	Bupropion Hcl	13	suppressed
Colesevelam Hcl	Colesevelam Hcl	13	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	13	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	13	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	13	suppressed
Lithium Carbonate	Lithium Carbonate	13	suppressed
Namzaric	Memantine Hcl/Donepezil Hcl	13	suppressed
Nystop	Nystatin	13	suppressed
Ondansetron Odt	Ondansetron	13	suppressed
Rytary	Carbidopa/Levodopa	13	suppressed
Silodosin	Silodosin	13	suppressed
Amantadine	Amantadine Hcl	12	suppressed
Baclofen	Baclofen	12	suppressed
Carbamazepine Er	Carbamazepine	12	suppressed
Flecainide Acetate	Flecainide Acetate	12	suppressed
Gemtesa	Vibegron	12	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	12	suppressed
Propranolol Hcl Er	Propranolol Hcl	12	suppressed
Tradjenta	Linagliptin	12	suppressed
Valsartan	Valsartan	12	suppressed
Vilazodone Hcl	Vilazodone Hcl	12	suppressed
Humalog Kwikpen U-100	Insulin Lispro	11	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	11	suppressed
Lansoprazole	Lansoprazole	11	suppressed
Terazosin Hcl	Terazosin Hcl	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