Healthcare provider profile · identity verified

George David Nacos, M.D.

Family Practice · WASHINGTON, IA · NPI 1235159716

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
Levothyroxine Sodium	Levothyroxine Sodium	839	148
Atorvastatin Calcium	Atorvastatin Calcium	681	150
Amlodipine Besylate	Amlodipine Besylate	474	106
Lisinopril	Lisinopril	407	89
Pantoprazole Sodium	Pantoprazole Sodium	335	69
Furosemide	Furosemide	334	78
Tamsulosin Hcl	Tamsulosin Hcl	322	64
Gabapentin	Gabapentin	310	53
Omeprazole	Omeprazole	302	71
Metoprolol Succinate	Metoprolol Succinate	298	66
Eliquis	Apixaban	234	43
Potassium Chloride	Potassium Chloride	206	50
Escitalopram Oxalate	Escitalopram Oxalate	205	36
Metformin Hcl Er	Metformin Hcl	196	43
Duloxetine Hcl	Duloxetine Hcl	183	26
Allopurinol	Allopurinol	180	33
Carvedilol	Carvedilol	176	32
Rosuvastatin Calcium	Rosuvastatin Calcium	169	44
Montelukast Sodium	Montelukast Sodium	145	30
Metoprolol Tartrate	Metoprolol Tartrate	135	34
Hydrochlorothiazide	Hydrochlorothiazide	130	32
Dutasteride	Dutasteride	128	21
Mounjaro	Tirzepatide	128	18
Zolpidem Tartrate	Zolpidem Tartrate	121	21
Simvastatin	Simvastatin	117	29
Finasteride	Finasteride	115	25
Olmesartan Medoxomil	Olmesartan Medoxomil	108	24
Valsartan	Valsartan	105	23
Clopidogrel	Clopidogrel Bisulfate	103	26
Nebivolol Hcl	Nebivolol Hcl	100	23
Isosorbide Mononitrate Er	Isosorbide Mononitrate	99	16
Metformin Hcl	Metformin Hcl	95	18
Sertraline Hcl	Sertraline Hcl	94	20
Ozempic	Semaglutide	92	14
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	89	21
Torsemide	Torsemide	89	19
Trazodone Hcl	Trazodone Hcl	89	24
Warfarin Sodium	Warfarin Sodium	88	15
Xarelto	Rivaroxaban	88	14
Alendronate Sodium	Alendronate Sodium	85	25
Tramadol Hcl	Tramadol Hcl	84	21
Alprazolam	Alprazolam	82	19
Pravastatin Sodium	Pravastatin Sodium	81	16
Albuterol Sulfate Hfa	Albuterol Sulfate	80	23
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	79	25
Famotidine	Famotidine	78	19
Bupropion Xl	Bupropion Hcl	73	13
Prednisone	Prednisone	70	27
Citalopram Hbr	Citalopram Hydrobromide	69	12
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	68	18
Colestipol Hcl	Colestipol Hcl	63	15
Irbesartan	Irbesartan	63	16
Losartan Potassium	Losartan Potassium	61	17
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	59	16
Tresiba Flextouch U-200	Insulin Degludec	59	suppressed
Clonazepam	Clonazepam	58	suppressed
Myrbetriq	Mirabegron	58	11
Ropinirole Hcl	Ropinirole Hcl	58	11
Amiodarone Hcl	Amiodarone Hcl	56	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	56	suppressed
Febuxostat	Febuxostat	54	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	54	suppressed
Tresiba Flextouch U-100	Insulin Degludec	54	11
Buspirone Hcl	Buspirone Hcl	53	suppressed
Levetiracetam	Levetiracetam	52	suppressed
Diclofenac Sodium	Diclofenac Sodium	51	13
Triamcinolone Acetonide	Triamcinolone Acetonide	51	27
Meloxicam	Meloxicam	50	16
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	50	12
Paroxetine Hcl	Paroxetine Hcl	49	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	46	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	46	suppressed
Hydralazine Hcl	Hydralazine Hcl	44	suppressed
Tizanidine Hcl	Tizanidine Hcl	44	suppressed
Gemtesa	Vibegron	42	suppressed
Jardiance	Empagliflozin	42	suppressed
Pregabalin	Pregabalin	42	suppressed
Novolog Flexpen	Insulin Aspart	40	suppressed
Spironolactone	Spironolactone	39	14
Glimepiride	Glimepiride	38	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	38	suppressed
Buprenorphine	Buprenorphine	37	suppressed
Liothyronine Sodium	Liothyronine Sodium	37	suppressed
Digoxin	Digoxin	36	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	36	13
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	35	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	35	29
Creon	Lipase/Protease/Amylase	34	suppressed
Movantik	Naloxegol Oxalate	34	suppressed
Januvia	Sitagliptin Phosphate	33	suppressed
Labetalol Hcl	Labetalol Hcl	33	suppressed
Memantine Hcl	Memantine Hcl	33	11
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	33	suppressed
Soliqua 100-33	Insulin Glargine/Lixisenatide	33	suppressed
Latanoprost	Latanoprost	32	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	32	suppressed
Metolazone	Metolazone	31	suppressed
Repatha Sureclick	Evolocumab	31	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	30	suppressed
Lorazepam	Lorazepam	30	suppressed
Mirtazapine	Mirtazapine	30	suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)	Insulin Pump Cart,auto,bt,g6/7	29	suppressed
Oxcarbazepine	Oxcarbazepine	29	suppressed
Azithromycin	Azithromycin	28	17
Entresto	Sacubitril/Valsartan	26	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	25	suppressed
Fenofibrate	Fenofibrate	25	suppressed
Atenolol	Atenolol	24	suppressed
Donepezil Hcl	Donepezil Hcl	24	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	24	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	24	suppressed
Oxycodone Hcl	Oxycodone Hcl	24	14
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	24	suppressed
Celecoxib	Celecoxib	23	suppressed
Ezetimibe	Ezetimibe	23	suppressed
Mupirocin	Mupirocin	23	15
Nitroglycerin	Nitroglycerin	23	13
Oxybutynin Chloride	Oxybutynin Chloride	23	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	23	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	23	suppressed
Breo Ellipta	Fluticasone/Vilanterol	22	suppressed
Humalog Kwikpen U-100	Insulin Lispro	22	suppressed
Incruse Ellipta	Umeclidinium Bromide	22	suppressed
Lansoprazole	Lansoprazole	22	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	15
Fentanyl	Fentanyl	21	suppressed
Ramipril	Ramipril	21	suppressed
Synthroid	Levothyroxine Sodium	21	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	20	suppressed
Amoxicillin	Amoxicillin	20	suppressed
Benazepril Hcl	Benazepril Hcl	20	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	20	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	19	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	19	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	19	suppressed
Edarbi	Azilsartan Medoxomil	19	suppressed
Fluticasone Propionate	Fluticasone Propionate	19	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	19	suppressed
Methimazole	Methimazole	18	suppressed
Midodrine Hcl	Midodrine Hcl	18	suppressed
Terazosin Hcl	Terazosin Hcl	18	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	18	suppressed
Levofloxacin	Levofloxacin	17	14
Timolol Maleate	Timolol Maleate	17	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	17	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	16	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	16	13
Rizatriptan	Rizatriptan Benzoate	16	suppressed
Solifenacin Succinate	Solifenacin Succinate	16	suppressed
Verapamil Er	Verapamil Hcl	16	suppressed
Cefadroxil	Cefadroxil	15	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	15	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	15	suppressed
Farxiga	Dapagliflozin Propanediol	15	suppressed
Livalo	Pitavastatin Calcium	15	suppressed
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	15	suppressed
Baclofen	Baclofen	14	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	14	suppressed
Linzess	Linaclotide	14	suppressed
Nexletol	Bempedoic Acid	14	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	14	suppressed
Topiramate	Topiramate	14	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Divalproex Sodium	Divalproex Sodium	13	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	13	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	13	suppressed
Repatha Syringe	Evolocumab	13	suppressed
Tradjenta	Linagliptin	13	suppressed
Albuterol Sulfate	Albuterol Sulfate	12	suppressed
Cephalexin	Cephalexin	12	suppressed
Cimetidine	Cimetidine	12	suppressed
Dexilant	Dexlansoprazole	12	suppressed
Estradiol	Estradiol	12	suppressed
Fluconazole	Fluconazole	12	suppressed
Humalog Kwikpen U-200	Insulin Lispro	12	suppressed
Humulin R U-500	Insulin Regular, Human	12	suppressed
Lovastatin	Lovastatin	12	suppressed
Mexiletine Hcl	Mexiletine Hcl	12	suppressed
Minocycline Hcl	Minocycline Hcl	12	suppressed
Nabumetone	Nabumetone	12	suppressed
Niacin Er	Niacin	12	suppressed
Ondansetron Odt	Ondansetron	12	suppressed
Prolia	Denosumab	12	suppressed
Sodium Chloride	Sodium Chloride 0.45 %	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	suppressed
Symbicort	Budesonide/Formoterol Fumarate	12	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	12	suppressed
Budesonide Dr	Budesonide	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Glipizide	Glipizide	11	suppressed
Methylprednisolone	Methylprednisolone	11	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	11	suppressed
Nystatin	Nystatin	11	suppressed
Olmesartan-Amlodipine-Hctz	Olmesartan/Amlodipin/Hcthiazid	11	suppressed
Propranolol Hcl	Propranolol Hcl	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