Healthcare provider profile · identity verified

Calvin C. Ly, DO

Emergency Medicine · HERCULES, CA · NPI 1376761767

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	628	103
Amlodipine Besylate	Amlodipine Besylate	490	72
Levothyroxine Sodium	Levothyroxine Sodium	459	47
Eliquis	Apixaban	402	36
Divalproex Sodium	Divalproex Sodium	351	46
Gabapentin	Gabapentin	345	60
Furosemide	Furosemide	334	44
Metformin Hcl	Metformin Hcl	328	50
Pantoprazole Sodium	Pantoprazole Sodium	320	48
Olanzapine	Olanzapine	309	38
Mirtazapine	Mirtazapine	295	42
Tamsulosin Hcl	Tamsulosin Hcl	264	41
Quetiapine Fumarate	Quetiapine Fumarate	259	41
Benztropine Mesylate	Benztropine Mesylate	201	30
Trazodone Hcl	Trazodone Hcl	190	36
Olanzapine Odt	Olanzapine	181	17
Losartan Potassium	Losartan Potassium	178	27
Lisinopril	Lisinopril	174	31
Albuterol Sulfate Hfa	Albuterol Sulfate	171	64
Valproic Acid	Valproic Acid (As Sodium Salt)	163	17
Metoprolol Tartrate	Metoprolol Tartrate	156	26
Risperidone	Risperidone	136	22
Levetiracetam	Levetiracetam	134	19
Airsupra	Albuterol Sulfate/Budesonide	130	46
Aripiprazole	Aripiprazole	125	16
Haloperidol	Haloperidol	122	14
Famotidine	Famotidine	120	26
Donepezil Hcl	Donepezil Hcl	119	14
Potassium Chloride	Potassium Chloride	109	14
Hydroxyzine Hcl	Hydroxyzine Hcl	107	31
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	107	14
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	102	suppressed
Baclofen	Baclofen	100	17
Duloxetine Hcl	Duloxetine Hcl	100	16
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	97	31
Latanoprost	Latanoprost	96	23
Memantine Hcl Er	Memantine Hcl	94	16
Metoprolol Succinate	Metoprolol Succinate	91	19
Invega Sustenna	Paliperidone Palmitate	90	13
Simvastatin	Simvastatin	90	suppressed
Sertraline Hcl	Sertraline Hcl	88	12
Divalproex Sodium Er	Divalproex Sodium	85	11
Escitalopram Oxalate	Escitalopram Oxalate	84	14
Jardiance	Empagliflozin	84	11
Finasteride	Finasteride	81	12
Lactulose	Lactulose	80	18
Bumetanide	Bumetanide	77	13
Lorazepam	Lorazepam	77	39
Carvedilol	Carvedilol	75	suppressed
Memantine Hcl	Memantine Hcl	75	15
Fluoxetine Hcl	Fluoxetine Hcl	71	suppressed
Warfarin Sodium	Warfarin Sodium	71	suppressed
Lamotrigine	Lamotrigine	70	suppressed
Xarelto	Rivaroxaban	70	suppressed
Spironolactone	Spironolactone	68	12
Citalopram Hbr	Citalopram Hydrobromide	65	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	63	suppressed
Atrovent Hfa	Ipratropium Bromide	62	13
Omeprazole	Omeprazole	62	14
Hydrochlorothiazide	Hydrochlorothiazide	59	11
Glipizide	Glipizide	55	11
Haloperidol Decanoate	Haloperidol Decanoate	53	suppressed
Sucralfate	Sucralfate	52	suppressed
Clopidogrel	Clopidogrel Bisulfate	51	11
Myrbetriq	Mirabegron	50	suppressed
Tradjenta	Linagliptin	50	suppressed
Buspirone Hcl	Buspirone Hcl	49	suppressed
Lidocaine	Lidocaine	49	14
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	47	suppressed
Propranolol Hcl	Propranolol Hcl	46	suppressed
Risperidone Er	Risperidone Microspheres	44	suppressed
Bupropion Xl	Bupropion Hcl	39	suppressed
Amiodarone Hcl	Amiodarone Hcl	38	suppressed
Bupropion Hcl Sr	Bupropion Hcl	36	suppressed
Ondansetron Hcl	Ondansetron Hcl	36	19
Abilify Maintena	Aripiprazole	35	suppressed
Allopurinol	Allopurinol	35	suppressed
Levofloxacin	Levofloxacin	35	30
Phenytoin	Phenytoin	35	suppressed
Clozapine Odt	Clozapine	34	suppressed
Fluvoxamine Maleate	Fluvoxamine Maleate	34	suppressed
Santyl	Collagenase Clostridium Hist.	34	suppressed
Lurasidone Hcl	Lurasidone Hcl	33	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	33	suppressed
Sodium Chloride	0.9 % Sodium Chloride	33	suppressed
Topiramate	Topiramate	33	suppressed
Bupropion Hcl	Bupropion Hcl	32	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	32	suppressed
Lithium Carbonate	Lithium Carbonate	32	suppressed
Ozempic	Semaglutide	32	suppressed
Xifaxan	Rifaximin	32	suppressed
Nuedexta	Dextromethorphan Hbr/Quinidine	31	suppressed
Alendronate Sodium	Alendronate Sodium	30	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	30	suppressed
Valproic Acid	Valproic Acid	30	suppressed
Rexulti	Brexpiprazole	29	suppressed
Risperidone Odt	Risperidone	29	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	29	19
Triamcinolone Acetonide	Triamcinolone Acetonide	29	15
Cephalexin	Cephalexin	28	20
Clonazepam	Clonazepam	28	12
Midodrine Hcl	Midodrine Hcl	28	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	28	12
Np Thyroid	Thyroid,pork	28	suppressed
Paroxetine Hcl	Paroxetine Hcl	28	suppressed
Quetiapine Fumarate Er	Quetiapine Fumarate	28	suppressed
Albuterol Sulfate	Albuterol Sulfate	27	suppressed
Chlorpromazine Hcl	Chlorpromazine Hcl	27	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	26	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	26	suppressed
Glycopyrrolate	Glycopyrrolate	26	suppressed
Humalog Kwikpen U-100	Insulin Lispro	26	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	26	suppressed
Ventolin Hfa	Albuterol Sulfate	26	suppressed
Diclofenac Sodium	Diclofenac Sodium	25	suppressed
Fanapt	Iloperidone	25	suppressed
Vancomycin Hcl	Vancomycin Hcl	25	suppressed
Austedo	Deutetrabenazine	24	suppressed
Dorzolamide Hcl	Dorzolamide Hcl	24	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	24	suppressed
Rivastigmine	Rivastigmine	24	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	23	16
Atenolol	Atenolol	23	suppressed
Digoxin	Digoxin	23	suppressed
Entresto	Sacubitril/Valsartan	23	suppressed
Haloperidol Decanoate 100	Haloperidol Decanoate	23	suppressed
Montelukast Sodium	Montelukast Sodium	23	suppressed
Novolog Flexpen	Insulin Aspart	23	suppressed
Valsartan	Valsartan	23	suppressed
Clonidine Hcl	Clonidine Hcl	22	suppressed
Humalog	Insulin Lispro	22	suppressed
Pravastatin Sodium	Pravastatin Sodium	22	suppressed
Admelog Solostar	Insulin Lispro	21	suppressed
Ibuprofen	Ibuprofen	21	suppressed
Oxcarbazepine	Oxcarbazepine	21	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	20	suppressed
Hydralazine Hcl	Hydralazine Hcl	20	suppressed
Oxycodone Hcl	Oxycodone Hcl	20	suppressed
Paliperidone Er	Paliperidone	20	suppressed
Prednisone	Prednisone	20	suppressed
Rivastigmine	Rivastigmine Tartrate	20	suppressed
Spiriva Handihaler	Tiotropium Bromide	20	suppressed
Anastrozole	Anastrozole	19	suppressed
Novolin 70-30	Insulin Nph Hum/Reg Insulin Hm	19	suppressed
Nystop	Nystatin	19	13
Vancomycin Hcl	Vancomycin/Water For Inj (Peg)	19	suppressed
Asenapine Maleate	Asenapine Maleate	18	suppressed
Ingrezza	Valbenazine Tosylate	18	suppressed
Januvia	Sitagliptin Phosphate	18	suppressed
Methimazole	Methimazole	18	suppressed
Aranesp	Darbepoetin Alfa In Polysorbat	17	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	17	suppressed
Labetalol Hcl	Labetalol Hcl	17	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	17	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	16	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	16	suppressed
Timolol Maleate	Timolol Maleate	16	suppressed
Tramadol Hcl	Tramadol Hcl	16	suppressed
Trihexyphenidyl Hcl	Trihexyphenidyl Hcl	16	suppressed
Carbidopa-Levodopa-Entacapone	Carbidopa/Levodopa/Entacapone	15	suppressed
Dapagliflozin	Dapagliflozin Propanediol	15	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	15	suppressed
Dilantin	Phenytoin Sodium Extended	15	suppressed
Dupixent Syringe	Dupilumab	15	suppressed
Ertapenem	Ertapenem Sodium	15	suppressed
Fluticasone Propionate	Fluticasone Propionate	15	suppressed
Hydrocortisone	Hydrocortisone	15	suppressed
Nystatin	Nystatin	15	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	14	14
Novolin R Flexpen	Insulin Regular, Human	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Tresiba Flextouch U-100	Insulin Degludec	14	suppressed
Ursodiol	Ursodiol	14	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	13	suppressed
Enalapril Maleate	Enalapril Maleate	13	suppressed
Ezetimibe	Ezetimibe	13	suppressed
Gemfibrozil	Gemfibrozil	13	suppressed
Calcitriol	Calcitriol	12	suppressed
Ceftriaxone	Ceftriaxone Sodium	12	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	12	suppressed
Clonidine	Clonidine	12	suppressed
Colchicine	Colchicine	12	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	12	11
Dutasteride	Dutasteride	12	suppressed
Glimepiride	Glimepiride	12	suppressed
Metolazone	Metolazone	12	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	12	suppressed
Atropine Sulfate	Atropine Sulfate	11	suppressed
Cimetidine	Cimetidine	11	suppressed
Clozapine	Clozapine	11	suppressed
Epogen	Epoetin Alfa	11	suppressed
Hydroxyurea	Hydroxyurea	11	suppressed
Novolog	Insulin Aspart	11	suppressed
Permethrin	Permethrin	11	suppressed
Torsemide	Torsemide	11	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	11	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	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