Healthcare provider profile · identity verified

Fernando Guarderas, M.D.

Family Practice · DENVER, CO · NPI 1467830331

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
Rosuvastatin Calcium	Rosuvastatin Calcium	556	168
Amlodipine Besylate	Amlodipine Besylate	418	129
Levothyroxine Sodium	Levothyroxine Sodium	352	96
Atorvastatin Calcium	Atorvastatin Calcium	332	98
Losartan Potassium	Losartan Potassium	331	104
Metoprolol Succinate	Metoprolol Succinate	235	72
Omeprazole	Omeprazole	230	71
Tamsulosin Hcl	Tamsulosin Hcl	221	79
Meloxicam	Meloxicam	168	74
Hydrochlorothiazide	Hydrochlorothiazide	158	54
Pantoprazole Sodium	Pantoprazole Sodium	138	41
Metformin Hcl Er	Metformin Hcl	137	48
Metformin Hcl	Metformin Hcl	127	39
Finasteride	Finasteride	121	40
Escitalopram Oxalate	Escitalopram Oxalate	114	37
Tramadol Hcl	Tramadol Hcl	110	23
Eliquis	Apixaban	108	34
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	105	35
Lisinopril	Lisinopril	103	33
Gabapentin	Gabapentin	94	36
Simvastatin	Simvastatin	90	27
Spironolactone	Spironolactone	89	26
Trazodone Hcl	Trazodone Hcl	86	29
Ozempic	Semaglutide	83	21
Furosemide	Furosemide	81	30
Alendronate Sodium	Alendronate Sodium	77	31
Allopurinol	Allopurinol	76	28
Carvedilol	Carvedilol	71	24
Pioglitazone Hcl	Pioglitazone Hcl	66	20
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	65	32
Albuterol Sulfate Hfa	Albuterol Sulfate	63	26
Potassium Chloride	Potassium Chloride	59	25
Zolpidem Tartrate	Zolpidem Tartrate	58	15
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	49	12
Duloxetine Hcl	Duloxetine Hcl	48	12
Sertraline Hcl	Sertraline Hcl	47	18
Fluticasone Propionate	Fluticasone Propionate	43	18
Lorazepam	Lorazepam	43	12
Olmesartan Medoxomil	Olmesartan Medoxomil	43	13
Citalopram Hbr	Citalopram Hydrobromide	42	11
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	42	16
Bupropion Xl	Bupropion Hcl	40	14
Buspirone Hcl	Buspirone Hcl	39	13
Celecoxib	Celecoxib	38	14
Chlorthalidone	Chlorthalidone	36	11
Prednisone	Prednisone	35	31
Temazepam	Temazepam	35	suppressed
Xarelto	Rivaroxaban	35	11
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	34	suppressed
Ezetimibe	Ezetimibe	33	14
Montelukast Sodium	Montelukast Sodium	33	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	33	13
Famotidine	Famotidine	32	13
Triamcinolone Acetonide	Triamcinolone Acetonide	32	24
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	31	13
Linzess	Linaclotide	30	suppressed
Ondansetron Odt	Ondansetron	30	suppressed
Mirtazapine	Mirtazapine	29	12
Nystatin	Nystatin	29	13
Telmisartan	Telmisartan	29	suppressed
Trulicity	Dulaglutide	29	suppressed
Alprazolam	Alprazolam	28	11
Metoprolol Tartrate	Metoprolol Tartrate	28	11
Topiramate	Topiramate	28	suppressed
Diclofenac Sodium	Diclofenac Sodium	27	11
Lidocaine	Lidocaine	27	suppressed
Promethazine Hcl	Promethazine Hcl	27	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	27	suppressed
Clonazepam	Clonazepam	26	suppressed
Clopidogrel	Clopidogrel Bisulfate	26	suppressed
Jardiance	Empagliflozin	26	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	26	suppressed
Atenolol	Atenolol	25	suppressed
Pravastatin Sodium	Pravastatin Sodium	25	suppressed
Estradiol	Estradiol	22	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	22	suppressed
Ondansetron Hcl	Ondansetron Hcl	22	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	22	suppressed
Benazepril Hcl	Benazepril Hcl	21	suppressed
Warfarin Sodium	Warfarin Sodium	21	suppressed
Torsemide	Torsemide	19	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	18	15
Oxycodone Hcl	Oxycodone Hcl	18	suppressed
Tizanidine Hcl	Tizanidine Hcl	18	suppressed
Glipizide	Glipizide	17	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	17	suppressed
Lovastatin	Lovastatin	17	suppressed
Synthroid	Levothyroxine Sodium	17	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	16	suppressed
Hydralazine Hcl	Hydralazine Hcl	16	suppressed
Amiodarone Hcl	Amiodarone Hcl	15	suppressed
Sildenafil Citrate	Sildenafil Citrate	15	suppressed
Valsartan	Valsartan	15	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	12
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	14	suppressed
Donepezil Hcl	Donepezil Hcl	14	suppressed
Methocarbamol	Methocarbamol	14	suppressed
Mounjaro	Tirzepatide	14	suppressed
Propranolol Hcl Er	Propranolol Hcl	14	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	13	suppressed
Bupropion Hcl Sr	Bupropion Hcl	13	suppressed
Indomethacin	Indomethacin	13	suppressed
Prazosin Hcl	Prazosin Hcl	13	suppressed
Varenicline Tartrate	Varenicline Tartrate	13	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	13	suppressed
Dutasteride	Dutasteride	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Memantine Hcl	Memantine Hcl	12	suppressed
Methylprednisolone	Methylprednisolone	12	11
Venlafaxine Hcl Er	Venlafaxine Hcl	12	suppressed
Bumetanide	Bumetanide	11	suppressed
Colchicine	Colchicine	11	suppressed
Colestipol Hcl	Colestipol Hcl	11	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	11	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	11	suppressed
Ibuprofen	Ibuprofen	11	suppressed
Movantik	Naloxegol Oxalate	11	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	11	suppressed
Paroxetine Hcl	Paroxetine Hcl	11	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	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