Healthcare provider profile · identity verified

Douglas Sou Chen, MD

Family Practice · INDIAN TRAIL, NC · NPI 1306860580

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	676	218
Amlodipine Besylate	Amlodipine Besylate	336	115
Omeprazole	Omeprazole	288	90
Levothyroxine Sodium	Levothyroxine Sodium	279	81
Furosemide	Furosemide	268	79
Losartan Potassium	Losartan Potassium	247	79
Metoprolol Succinate	Metoprolol Succinate	235	72
Metformin Hcl	Metformin Hcl	211	65
Trazodone Hcl	Trazodone Hcl	200	63
Lisinopril	Lisinopril	198	60
Gabapentin	Gabapentin	191	68
Rosuvastatin Calcium	Rosuvastatin Calcium	191	64
Azelastine Hcl	Azelastine Hcl	176	84
Eliquis	Apixaban	164	43
Duloxetine Hcl	Duloxetine Hcl	146	38
Pantoprazole Sodium	Pantoprazole Sodium	144	40
Alendronate Sodium	Alendronate Sodium	141	44
Alprazolam	Alprazolam	127	20
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	120	38
Metoprolol Tartrate	Metoprolol Tartrate	119	35
Albuterol Sulfate Hfa	Albuterol Sulfate	114	41
Allopurinol	Allopurinol	114	39
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	105	32
Carvedilol	Carvedilol	97	31
Tramadol Hcl	Tramadol Hcl	94	20
Fluticasone Propionate	Fluticasone Propionate	91	27
Sertraline Hcl	Sertraline Hcl	87	26
Tamsulosin Hcl	Tamsulosin Hcl	82	29
Celecoxib	Celecoxib	79	25
Zolpidem Tartrate	Zolpidem Tartrate	79	15
Baclofen	Baclofen	71	29
Glipizide	Glipizide	68	19
Hydrochlorothiazide	Hydrochlorothiazide	67	20
Simvastatin	Simvastatin	67	17
Buspirone Hcl	Buspirone Hcl	66	17
Metformin Hcl Er	Metformin Hcl	65	22
Ozempic	Semaglutide	64	18
Clopidogrel	Clopidogrel Bisulfate	63	21
Bupropion Hcl Sr	Bupropion Hcl	60	17
Fenofibrate	Fenofibrate	57	19
Naproxen	Naproxen	56	20
Lorazepam	Lorazepam	55	18
Finasteride	Finasteride	54	17
Jardiance	Empagliflozin	54	13
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	53	suppressed
Donepezil Hcl	Donepezil Hcl	52	14
Mirtazapine	Mirtazapine	50	20
Prednisone	Prednisone	49	35
Trulicity	Dulaglutide	48	suppressed
Potassium Chloride	Potassium Chloride	47	18
Pregabalin	Pregabalin	46	12
Quetiapine Fumarate	Quetiapine Fumarate	45	15
Ropinirole Hcl	Ropinirole Hcl	44	15
Dicyclomine Hcl	Dicyclomine Hcl	43	19
Oxybutynin Chloride	Oxybutynin Chloride	43	17
Warfarin Sodium	Warfarin Sodium	43	12
Pravastatin Sodium	Pravastatin Sodium	42	14
Fluoxetine Hcl	Fluoxetine Hcl	41	15
Doxycycline Monohydrate	Doxycycline Monohydrate	40	37
Ondansetron Hcl	Ondansetron Hcl	40	15
Terazosin Hcl	Terazosin Hcl	38	15
Citalopram Hbr	Citalopram Hydrobromide	37	13
Ezetimibe	Ezetimibe	37	16
Pioglitazone Hcl	Pioglitazone Hcl	37	13
Chlorthalidone	Chlorthalidone	36	13
Montelukast Sodium	Montelukast Sodium	36	14
Tizanidine Hcl	Tizanidine Hcl	36	11
Clonidine Hcl	Clonidine Hcl	35	suppressed
Doxepin Hcl	Doxepin Hcl	35	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	35	11
Meloxicam	Meloxicam	35	17
Triamcinolone Acetonide	Triamcinolone Acetonide	35	16
Esomeprazole Magnesium	Esomeprazole Magnesium	34	suppressed
Bupropion Xl	Bupropion Hcl	32	12
Clonazepam	Clonazepam	32	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	32	12
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	32	suppressed
Famotidine	Famotidine	31	suppressed
Diclofenac Sodium	Diclofenac Sodium	30	12
Diltiazem 24hr Er	Diltiazem Hcl	30	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	29	suppressed
Glipizide-Metformin	Glipizide/Metformin Hcl	29	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	29	suppressed
Topiramate	Topiramate	29	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	28	11
Synthroid	Levothyroxine Sodium	28	suppressed
Xarelto	Rivaroxaban	28	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	27	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	27	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	26	suppressed
Ibuprofen	Ibuprofen	25	suppressed
Terbinafine Hcl	Terbinafine Hcl	25	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	24	suppressed
Klor-Con M20	Potassium Chloride	23	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	23	11
Meclizine Hcl	Meclizine Hcl	23	13
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	23	suppressed
Wegovy	Semaglutide	23	suppressed
Atenolol	Atenolol	22	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	22	12
Ipratropium Bromide	Ipratropium Bromide	21	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	21	suppressed
Mupirocin	Mupirocin	21	19
Promethazine Hcl	Promethazine Hcl	21	suppressed
Valsartan	Valsartan	21	suppressed
Aripiprazole	Aripiprazole	20	suppressed
Azithromycin	Azithromycin	20	18
Benazepril Hcl	Benazepril Hcl	20	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	20	suppressed
Lovastatin	Lovastatin	20	suppressed
Hydralazine Hcl	Hydralazine Hcl	19	suppressed
Januvia	Sitagliptin Phosphate	19	suppressed
Amoxicillin	Amoxicillin	18	16
Nitroglycerin	Nitroglycerin	18	suppressed
Telmisartan	Telmisartan	18	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	18	suppressed
Cephalexin	Cephalexin	17	16
Fenofibrate	Fenofibrate Nanocrystallized	17	suppressed
Tiadylt Er	Diltiazem Hcl	17	suppressed
Torsemide	Torsemide	17	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	16	15
Glipizide Er	Glipizide	16	suppressed
Spironolactone	Spironolactone	16	suppressed
Tresiba Flextouch U-200	Insulin Degludec	16	suppressed
Colestipol Hcl	Colestipol Hcl	15	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	15	suppressed
Mounjaro	Tirzepatide	15	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	15	15
Propranolol Hcl	Propranolol Hcl	15	suppressed
Dexlansoprazole Dr	Dexlansoprazole	14	suppressed
Eszopiclone	Eszopiclone	14	suppressed
Irbesartan	Irbesartan	14	suppressed
Nystatin	Nystatin	14	suppressed
Tresiba Flextouch U-100	Insulin Degludec	14	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	13	suppressed
Clindamycin Hcl	Clindamycin Hcl	13	12
Fluconazole	Fluconazole	13	suppressed
Hydrocortisone	Hydrocortisone	13	suppressed
Timolol Maleate	Timolol Maleate	13	suppressed
Ventolin Hfa	Albuterol Sulfate	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	12	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	12	suppressed
Klonopin	Clonazepam	12	suppressed
Novolog Flexpen	Insulin Aspart	12	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	12	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	12	suppressed
Valacyclovir	Valacyclovir Hcl	12	suppressed
Colchicine	Colchicine	11	suppressed
Spiriva Respimat	Tiotropium Bromide	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