Healthcare provider profile · identity verified

Raymond Chan, M.D.

Family Practice · COLTON, CA · NPI 1518372093

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	915	284
Levothyroxine Sodium	Levothyroxine Sodium	515	147
Amlodipine Besylate	Amlodipine Besylate	513	177
Losartan Potassium	Losartan Potassium	334	105
Lisinopril	Lisinopril	297	101
Tamsulosin Hcl	Tamsulosin Hcl	264	92
Rosuvastatin Calcium	Rosuvastatin Calcium	257	86
Omeprazole	Omeprazole	219	76
Pantoprazole Sodium	Pantoprazole Sodium	211	69
Trazodone Hcl	Trazodone Hcl	197	70
Metoprolol Succinate	Metoprolol Succinate	196	72
Metformin Hcl	Metformin Hcl	169	51
Gabapentin	Gabapentin	167	54
Hydrochlorothiazide	Hydrochlorothiazide	154	51
Eliquis	Apixaban	141	47
Sertraline Hcl	Sertraline Hcl	124	41
Simvastatin	Simvastatin	119	37
Allopurinol	Allopurinol	113	32
Carvedilol	Carvedilol	109	30
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	106	23
Alprazolam	Alprazolam	101	32
Albuterol Sulfate Hfa	Albuterol Sulfate	99	51
Valsartan	Valsartan	98	32
Alendronate Sodium	Alendronate Sodium	95	30
Metformin Hcl Er	Metformin Hcl	93	34
Furosemide	Furosemide	91	31
Atenolol	Atenolol	87	23
Ozempic	Semaglutide	87	15
Famotidine	Famotidine	86	29
Clopidogrel	Clopidogrel Bisulfate	83	24
Escitalopram Oxalate	Escitalopram Oxalate	82	32
Citalopram Hbr	Citalopram Hydrobromide	80	23
Fluticasone Propionate	Fluticasone Propionate	80	38
Lorazepam	Lorazepam	74	24
Duloxetine Hcl	Duloxetine Hcl	70	20
Benazepril Hcl	Benazepril Hcl	67	19
Montelukast Sodium	Montelukast Sodium	67	24
Tramadol Hcl	Tramadol Hcl	67	18
Zolpidem Tartrate	Zolpidem Tartrate	67	19
Finasteride	Finasteride	64	25
Synthroid	Levothyroxine Sodium	64	21
Ezetimibe	Ezetimibe	62	21
Pravastatin Sodium	Pravastatin Sodium	62	23
Memantine Hcl	Memantine Hcl	57	18
Clonazepam	Clonazepam	55	suppressed
Potassium Chloride	Potassium Chloride	51	19
Olmesartan Medoxomil	Olmesartan Medoxomil	49	15
Donepezil Hcl	Donepezil Hcl	48	17
Glimepiride	Glimepiride	46	14
Estradiol	Estradiol	44	20
Fluoxetine Hcl	Fluoxetine Hcl	44	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	44	14
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	44	suppressed
Irbesartan	Irbesartan	43	11
Metoprolol Tartrate	Metoprolol Tartrate	42	13
Meloxicam	Meloxicam	41	15
Jardiance	Empagliflozin	38	suppressed
Entresto	Sacubitril/Valsartan	37	suppressed
Warfarin Sodium	Warfarin Sodium	37	suppressed
Spironolactone	Spironolactone	36	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	35	12
Chlorthalidone	Chlorthalidone	34	suppressed
Bupropion Xl	Bupropion Hcl	33	suppressed
Azithromycin	Azithromycin	32	31
Breo Ellipta	Fluticasone/Vilanterol	32	suppressed
Myrbetriq	Mirabegron	32	suppressed
Acyclovir	Acyclovir	29	13
Celecoxib	Celecoxib	29	suppressed
Mirtazapine	Mirtazapine	29	11
Triamcinolone Acetonide	Triamcinolone Acetonide	29	24
Methylprednisolone	Methylprednisolone	28	25
Venlafaxine Hcl Er	Venlafaxine Hcl	28	suppressed
Glipizide Er	Glipizide	27	12
Azelastine Hcl	Azelastine Hcl	26	15
Lovastatin	Lovastatin	26	suppressed
Prednisone	Prednisone	26	12
Quetiapine Fumarate	Quetiapine Fumarate	26	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	25	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	24	suppressed
Buspirone Hcl	Buspirone Hcl	24	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	24	22
Farxiga	Dapagliflozin Propanediol	24	suppressed
Mounjaro	Tirzepatide	24	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	23	22
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	23	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	23	suppressed
Hydralazine Hcl	Hydralazine Hcl	23	suppressed
Temazepam	Temazepam	23	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	23	suppressed
Latanoprost	Latanoprost	22	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	22	19
Telmisartan	Telmisartan	22	suppressed
Testosterone	Testosterone	22	suppressed
Glipizide	Glipizide	21	suppressed
Paroxetine Hcl	Paroxetine Hcl	21	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	21	suppressed
Pregabalin	Pregabalin	21	suppressed
Verapamil Er	Verapamil Hcl	21	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	20	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	20	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	20	suppressed
Ibuprofen	Ibuprofen	19	suppressed
Meclizine Hcl	Meclizine Hcl	19	suppressed
Terazosin Hcl	Terazosin Hcl	19	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	19	suppressed
Valacyclovir	Valacyclovir Hcl	19	11
Baclofen	Baclofen	17	suppressed
Cephalexin	Cephalexin	17	16
Clonidine Hcl	Clonidine Hcl	17	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	17	suppressed
Eszopiclone	Eszopiclone	17	suppressed
Trandolapril	Trandolapril	17	suppressed
Bupropion Hcl Sr	Bupropion Hcl	16	suppressed
Fenofibrate	Fenofibrate	16	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	16	suppressed
Diazepam	Diazepam	15	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	15	suppressed
Januvia	Sitagliptin Phosphate	15	suppressed
Nystatin	Nystatin	15	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	15	suppressed
Xarelto	Rivaroxaban	15	suppressed
Bumetanide	Bumetanide	14	suppressed
Dutasteride	Dutasteride	14	suppressed
Lansoprazole	Lansoprazole	14	suppressed
Midodrine Hcl	Midodrine Hcl	14	suppressed
Naproxen	Naproxen	14	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	14	suppressed
Sildenafil Citrate	Sildenafil Citrate	14	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	13	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	13	suppressed
Ibandronate Sodium	Ibandronate Sodium	13	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	13	suppressed
Propranolol Hcl	Propranolol Hcl	13	suppressed
Propranolol Hcl Er	Propranolol Hcl	13	suppressed
Symbicort	Budesonide/Formoterol Fumarate	13	suppressed
Creon	Lipase/Protease/Amylase	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Mupirocin	Mupirocin	12	11
Ondansetron Hcl	Ondansetron Hcl	12	suppressed
Prolia	Denosumab	12	suppressed
Asmanex	Mometasone Furoate	11	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	11	11
Premarin	Estrogens, Conjugated	11	suppressed
Timolol Maleate	Timolol Maleate	11	suppressed
Trulicity	Dulaglutide	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