Healthcare provider profile · identity verified

Sixto A Alvarez, M.D

General Practice · CAGUAS, PR · NPI 1336181551

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	943	202
Levothyroxine Sodium	Levothyroxine Sodium	619	124
Gabapentin	Gabapentin	493	117
Famotidine	Famotidine	445	94
Metformin Hcl	Metformin Hcl	433	86
Simvastatin	Simvastatin	430	95
Losartan Potassium	Losartan Potassium	420	97
Pantoprazole Sodium	Pantoprazole Sodium	372	78
Synthroid	Levothyroxine Sodium	331	87
Amlodipine Besylate	Amlodipine Besylate	314	70
Temazepam	Temazepam	312	59
Donepezil Hcl	Donepezil Hcl	298	53
Omeprazole	Omeprazole	298	46
Metoprolol Succinate	Metoprolol Succinate	287	64
Sertraline Hcl	Sertraline Hcl	284	71
Memantine Hcl	Memantine Hcl	281	45
Clopidogrel	Clopidogrel Bisulfate	259	61
Lisinopril	Lisinopril	240	51
Furosemide	Furosemide	227	57
Quetiapine Fumarate	Quetiapine Fumarate	227	41
Clonazepam	Clonazepam	220	46
Tamsulosin Hcl	Tamsulosin Hcl	219	52
Buspirone Hcl	Buspirone Hcl	169	43
Enalapril Maleate	Enalapril Maleate	143	25
Irbesartan	Irbesartan	136	32
Montelukast Sodium	Montelukast Sodium	132	28
Levetiracetam	Levetiracetam	128	26
Lantus	Insulin Glargine,hum.Rec.Anlog	116	24
Sucralfate	Sucralfate	113	30
Alendronate Sodium	Alendronate Sodium	111	24
Hydrochlorothiazide	Hydrochlorothiazide	110	31
Carvedilol	Carvedilol	109	22
Diclofenac Potassium	Diclofenac Potassium	108	55
Ciprofloxacin Hcl	Ciprofloxacin Hcl	107	95
Ketoconazole	Ketoconazole	105	65
Levofloxacin	Levofloxacin	100	83
Finasteride	Finasteride	94	15
Trazodone Hcl	Trazodone Hcl	93	26
Eliquis	Apixaban	91	22
Glipizide	Glipizide	83	20
Divalproex Sodium	Divalproex Sodium	81	11
Tobramycin-Dexamethasone	Tobramycin/Dexamethasone	81	62
Memantine Hcl Er	Memantine Hcl	80	suppressed
Rivastigmine	Rivastigmine	79	13
Azithromycin	Azithromycin	78	61
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	76	12
Pentoxifylline	Pentoxifylline	76	14
Folic Acid	Folic Acid	75	17
Lactulose	Lactulose	75	44
Xarelto	Rivaroxaban	73	13
Latanoprost	Latanoprost	72	12
Tizanidine Hcl	Tizanidine Hcl	69	15
Lorazepam	Lorazepam	64	11
Mirtazapine	Mirtazapine	63	13
Rosuvastatin Calcium	Rosuvastatin Calcium	63	16
Alprazolam	Alprazolam	62	17
Carbidopa-Levodopa	Carbidopa/Levodopa	62	11
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	62	38
Silver Sulfadiazine	Silver Sulfadiazine	61	28
Isosorbide Mononitrate Er	Isosorbide Mononitrate	60	15
Permethrin	Permethrin	60	40
Triamcinolone Acetonide	Triamcinolone Acetonide	60	38
Atenolol	Atenolol	57	13
Baclofen	Baclofen	57	13
Glipizide Er	Glipizide	56	13
Pregabalin	Pregabalin	56	suppressed
Glimepiride	Glimepiride	55	17
Fluoxetine Hcl	Fluoxetine Hcl	54	14
Hydralazine Hcl	Hydralazine Hcl	54	19
Duloxetine Hcl	Duloxetine Hcl	50	suppressed
Methotrexate	Methotrexate Sodium	49	suppressed
Verapamil Hcl	Verapamil Hcl	48	suppressed
Cephalexin	Cephalexin	46	39
Metoprolol Tartrate	Metoprolol Tartrate	46	14
Cilostazol	Cilostazol	45	suppressed
Clotrimazole	Clotrimazole	44	33
Galantamine Er	Galantamine Hbr	44	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	44	44
Methylprednisolone	Methylprednisolone	43	22
Risperidone	Risperidone	43	suppressed
Ssd	Silver Sulfadiazine	43	24
Meclizine Hcl	Meclizine Hcl	42	20
Albuterol Sulfate Hfa	Albuterol Sulfate	39	16
Candesartan Cilexetil	Candesartan Cilexetil	39	13
Escitalopram Oxalate	Escitalopram Oxalate	39	suppressed
Humulin 70-30	Insulin Nph Hum/Reg Insulin Hm	39	suppressed
Lumigan	Bimatoprost	38	suppressed
Amiodarone Hcl	Amiodarone Hcl	37	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	36	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	36	36
Nifedipine Er	Nifedipine	35	11
Citalopram Hbr	Citalopram Hydrobromide	34	suppressed
Januvia	Sitagliptin Phosphate	34	11
Prednisone	Prednisone	34	suppressed
Humulin N	Insulin Nph Human Isophane	33	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	33	suppressed
Nabumetone	Nabumetone	32	suppressed
Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	31	suppressed
Betamethasone Dipropionate	Betamethasone Dipropionate	30	17
Digoxin	Digoxin	30	suppressed
Fluticasone Propionate	Fluticasone Propionate	30	15
Pravastatin Sodium	Pravastatin Sodium	30	suppressed
Theophylline Er	Theophylline Anhydrous	30	suppressed
Jardiance	Empagliflozin	29	suppressed
Ofloxacin	Ofloxacin	29	23
Ramipril	Ramipril	29	suppressed
Ketorolac Tromethamine	Ketorolac Tromethamine	28	17
Terazosin Hcl	Terazosin Hcl	27	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	26	suppressed
Spironolactone	Spironolactone	26	suppressed
Bumetanide	Bumetanide	25	suppressed
Haloperidol	Haloperidol	25	suppressed
Insulin Lispro	Insulin Lispro	25	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	25	suppressed
Valproic Acid	Valproic Acid (As Sodium Salt)	25	suppressed
Humalog Mix 75-25	Insulin Lispro Protamin/Lispro	24	suppressed
Jentadueto	Linagliptin/Metformin Hcl	24	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	23	21
Phenytoin Sodium Extended	Phenytoin Sodium Extended	23	suppressed
Cholestyramine	Cholestyramine (With Sugar)	22	18
Enulose	Lactulose	22	15
Ezetimibe	Ezetimibe	22	suppressed
Humulin R	Insulin Regular, Human	22	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	22	suppressed
Naproxen	Naproxen	22	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	22	suppressed
Fenofibrate	Fenofibrate	21	suppressed
Tolterodine Tartrate	Tolterodine Tartrate	21	suppressed
Trueplus Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	21	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	21	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	20	suppressed
Nitroglycerin Patch	Nitroglycerin	20	suppressed
Tradjenta	Linagliptin	20	suppressed
Brilinta	Ticagrelor	19	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	19	suppressed
Clonidine Hcl	Clonidine Hcl	19	suppressed
Galantamine Hbr	Galantamine Hbr	19	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	19	suppressed
Lansoprazole	Lansoprazole	19	suppressed
Sure Comfort	Syringe-Needle,insulin,0.5 Ml	19	suppressed
Symbicort	Budesonide/Formoterol Fumarate	19	suppressed
Tramadol Hcl-Acetaminophen	Tramadol Hcl/Acetaminophen	19	11
Dilantin	Phenytoin Sodium Extended	18	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	18	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	18	suppressed
Rivastigmine	Rivastigmine Tartrate	18	suppressed
Sure Comfort	Syringe And Needle,insulin,1ml	18	suppressed
Tramadol Hcl	Tramadol Hcl	18	suppressed
Chlorthalidone	Chlorthalidone	17	suppressed
Fenofibric Acid	Fenofibric Acid (Choline)	17	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	17	suppressed
Meloxicam	Meloxicam	17	suppressed
Olanzapine	Olanzapine	17	suppressed
Benztropine Mesylate	Benztropine Mesylate	16	suppressed
Dorzolamide Hcl	Dorzolamide Hcl	16	suppressed
Fluconazole	Fluconazole	16	11
Gentamicin Sulfate	Gentamicin Sulfate	16	13
Ibuprofen	Ibuprofen	16	suppressed
Janumet Xr	Sitagliptin Phos/Metformin Hcl	16	suppressed
Lamotrigine	Lamotrigine	15	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	13
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	15	suppressed
Acebutolol Hcl	Acebutolol Hcl	14	suppressed
Acyclovir	Acyclovir	14	13
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	14
Bicalutamide	Bicalutamide	14	suppressed
Labetalol Hcl	Labetalol Hcl	14	suppressed
Metronidazole	Metronidazole	14	11
Phenytoin	Phenytoin	14	suppressed
Sulfasalazine	Sulfasalazine	14	suppressed
Trueplus Insulin Syringe	Syring-Needl,disp,insul,0.3 Ml	14	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	14	suppressed
Warfarin Sodium	Warfarin Sodium	14	suppressed
Betamethasone Valerate	Betamethasone Valerate	13	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	13	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	13	suppressed
Estazolam	Estazolam	13	suppressed
Humalog	Insulin Lispro	13	suppressed
Ibandronate Sodium	Ibandronate Sodium	13	suppressed
Prednisolone Sodium Phosphate	Prednisolone Sodium Phosphate	13	12
Valacyclovir	Valacyclovir Hcl	13	13
Verapamil Sr	Verapamil Hcl	13	suppressed
Xigduo Xr	Dapaglifloz Propaned/Metformin	13	suppressed
Allopurinol	Allopurinol	12	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	12	suppressed
Fosfomycin Tromethamine	Fosfomycin Tromethamine	12	11
Lacosamide	Lacosamide	12	suppressed
Oxcarbazepine	Oxcarbazepine	12	suppressed
Topiramate	Topiramate	12	suppressed
Efavirenz-Emtric-Tenofov Disop	Efavirenz/Emtricit/Tenofovr Df	11	suppressed
Estradiol	Estradiol	11	suppressed
Insulin Syringe	Syringe And Needle,insulin,1ml	11	suppressed
Ozempic	Semaglutide	11	suppressed
Potassium Chloride	Potassium Chloride	11	suppressed
Rytary	Carbidopa/Levodopa	11	suppressed
Santyl	Collagenase Clostridium Hist.	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