Healthcare provider profile · identity verified

Michael Nicolas Markopoulos, M.D.

General Practice · DEL MAR, CA · NPI 1023178464

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	934	58
Famotidine	Famotidine	380	38
Rosuvastatin Calcium	Rosuvastatin Calcium	345	32
Levetiracetam	Levetiracetam	326	28
Olanzapine	Olanzapine	266	22
Simvastatin	Simvastatin	223	20
Phenobarbital	Phenobarbital	215	17
Baclofen	Baclofen	210	17
Risperidone	Risperidone	208	17
Lisinopril	Lisinopril	205	18
Buspirone Hcl	Buspirone Hcl	195	18
Trazodone Hcl	Trazodone Hcl	181	20
Atorvastatin Calcium	Atorvastatin Calcium	170	14
Divalproex Sodium	Divalproex Sodium	168	12
Omeprazole	Omeprazole	158	15
Gabapentin	Gabapentin	157	16
Meloxicam	Meloxicam	150	13
Amlodipine Besylate	Amlodipine Besylate	147	16
Clonazepam	Clonazepam	146	13
Tamsulosin Hcl	Tamsulosin Hcl	134	13
Sucralfate	Sucralfate	130	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	128	15
Topiramate	Topiramate	124	suppressed
Valproic Acid	Valproic Acid (As Sodium Salt)	121	12
Escitalopram Oxalate	Escitalopram Oxalate	120	11
Lorazepam	Lorazepam	120	32
Carbamazepine	Carbamazepine	117	suppressed
Potassium Chloride	Potassium Chloride	115	suppressed
Benztropine Mesylate	Benztropine Mesylate	111	suppressed
Citalopram Hbr	Citalopram Hydrobromide	110	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	105	11
Metformin Hcl	Metformin Hcl	104	suppressed
Aripiprazole	Aripiprazole	103	suppressed
Mirtazapine	Mirtazapine	103	11
Fluoxetine Hcl	Fluoxetine Hcl	102	suppressed
Lamotrigine	Lamotrigine	99	suppressed
Lansoprazole	Lansoprazole	99	suppressed
Lacosamide	Lacosamide	98	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	96	suppressed
Furosemide	Furosemide	95	11
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	88	suppressed
Linzess	Linaclotide	83	suppressed
Paroxetine Hcl	Paroxetine Hcl	78	suppressed
Lactulose	Lactulose	77	suppressed
Midodrine Hcl	Midodrine Hcl	75	suppressed
Naltrexone Hcl	Naltrexone Hcl	75	suppressed
Prolia	Denosumab	72	40
Eliquis	Apixaban	70	suppressed
Phenytoin	Phenytoin	66	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	65	suppressed
Fluticasone Propionate	Fluticasone Propionate	61	13
Cyproheptadine Hcl	Cyproheptadine Hcl	58	suppressed
Xarelto	Rivaroxaban	58	suppressed
Losartan Potassium	Losartan Potassium	54	suppressed
Glycopyrrolate	Glycopyrrolate	51	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	51	suppressed
Montelukast Sodium	Montelukast Sodium	51	suppressed
Alendronate Sodium	Alendronate Sodium	50	suppressed
Propranolol Hcl	Propranolol Hcl	50	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	48	suppressed
Cephalexin	Cephalexin	44	23
Nifedipine Er	Nifedipine	40	suppressed
Valsartan	Valsartan	40	suppressed
Gemfibrozil	Gemfibrozil	39	suppressed
Ibandronate Sodium	Ibandronate Sodium	38	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	38	suppressed
Clonidine Hcl	Clonidine Hcl	37	suppressed
Glipizide	Glipizide	36	suppressed
Oxcarbazepine	Oxcarbazepine	36	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	35	suppressed
Donepezil Hcl	Donepezil Hcl	34	suppressed
Megestrol Acetate	Megestrol Acetate	34	suppressed
Albuterol Sulfate	Albuterol Sulfate	31	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	31	suppressed
Januvia	Sitagliptin Phosphate	29	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	28	suppressed
Ketoconazole	Ketoconazole	28	12
Methenamine Hippurate	Methenamine Hippurate	27	suppressed
Valproic Acid	Valproic Acid	27	suppressed
Carvedilol	Carvedilol	26	suppressed
Diazepam	Diazepam	26	suppressed
Acetazolamide	Acetazolamide	25	suppressed
Dutasteride	Dutasteride	25	suppressed
Sertraline Hcl	Sertraline Hcl	25	suppressed
Clobazam	Clobazam	24	suppressed
Finasteride	Finasteride	24	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	24	suppressed
Lithium Carbonate	Lithium Carbonate	24	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	24	suppressed
Tizanidine Hcl	Tizanidine Hcl	24	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	23	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	23	16
Desmopressin Acetate	Desmopressin Acetate	23	suppressed
Perphenazine	Perphenazine	22	suppressed
Metoprolol Succinate	Metoprolol Succinate	21	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	20	16
Spironolactone	Spironolactone	20	suppressed
Ezetimibe	Ezetimibe	19	suppressed
Hydrocortisone	Hydrocortisone	19	suppressed
Moxifloxacin	Moxifloxacin Hcl	19	17
Nystatin	Nystatin	19	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	19	suppressed
Briviact	Brivaracetam	18	suppressed
Chlorpromazine Hcl	Chlorpromazine Hcl	18	suppressed
Calcipotriene	Calcipotriene	17	suppressed
Konvomep	Omeprazole/Sodium Bicarbonate	17	suppressed
Minocycline Hcl	Minocycline Hcl	17	suppressed
Amoxicillin	Amoxicillin	16	11
Atenolol	Atenolol	16	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	16	suppressed
Fentanyl	Fentanyl	16	suppressed
Metformin Hcl Er	Metformin Hcl	16	suppressed
Zonisamide	Zonisamide	16	suppressed
Farxiga	Dapagliflozin Propanediol	15	suppressed
Mupirocin	Mupirocin	15	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	15	suppressed
Allopurinol	Allopurinol	14	suppressed
Fluconazole	Fluconazole	14	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	14	suppressed
Levofloxacin	Levofloxacin	14	suppressed
Rufinamide	Rufinamide	14	suppressed
Tramadol Hcl	Tramadol Hcl	14	suppressed
Trihexyphenidyl Hcl	Trihexyphenidyl Hcl	14	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	13	suppressed
Benazepril Hcl	Benazepril Hcl	13	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	13	suppressed
Celecoxib	Celecoxib	13	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	13	suppressed
Dabigatran Etexilate	Dabigatran Etexilate Mesylate	13	suppressed
Darifenacin Er	Darifenacin Hydrobromide	13	suppressed
Dexlansoprazole Dr	Dexlansoprazole	13	suppressed
Digoxin	Digoxin	13	suppressed
Dilantin	Phenytoin Sodium Extended	13	suppressed
Doxepin Hcl	Doxepin Hcl	13	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	13	suppressed
Fesoterodine Fumarate Er	Fesoterodine Fumarate	13	suppressed
Icosapent Ethyl	Icosapent Ethyl	13	suppressed
Latanoprost	Latanoprost	13	suppressed
Lutera	Levonorgestrel/Ethin.Estradiol	13	suppressed
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	13	suppressed
Methsuximide	Methsuximide	13	suppressed
Pravastatin Sodium	Pravastatin Sodium	13	suppressed
Prazosin Hcl	Prazosin Hcl	13	suppressed
Primidone	Primidone	13	suppressed
Trulicity	Dulaglutide	13	suppressed
Breo Ellipta	Fluticasone/Vilanterol	12	suppressed
Calcitonin-Salmon	Calcitonin,salmon,synthetic	12	suppressed
Clorazepate Dipotassium	Clorazepate Dipotassium	12	suppressed
Dapagliflozin	Dapagliflozin Propanediol	12	suppressed
Diltiazem Hcl	Diltiazem Hcl	12	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	12	suppressed
Duloxetine Hcl	Duloxetine Hcl	12	suppressed
Felbamate	Felbamate	12	suppressed
Fenofibrate	Fenofibrate,micronized	12	suppressed
Flecainide Acetate	Flecainide Acetate	12	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	12	suppressed
Fluvoxamine Maleate	Fluvoxamine Maleate	12	suppressed
Hydralazine Hcl	Hydralazine Hcl	12	suppressed
Imipramine Hcl	Imipramine Hcl	12	suppressed
Levocarnitine	Levocarnitine	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
Memantine Hcl	Memantine Hcl	12	suppressed
Nitroglycerin Patch	Nitroglycerin	12	suppressed
Ondansetron Odt	Ondansetron	12	suppressed
Trimethoprim	Trimethoprim	12	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	12	suppressed
Amethyst	Levonorgestrel/Ethin.Estradiol	11	suppressed
Arnuity Ellipta	Fluticasone Furoate	11	suppressed
Betamethasone Dipropionate	Betamethasone Dipropionate	11	suppressed
Ibuprofen	Ibuprofen	11	suppressed
Lidocaine	Lidocaine	11	suppressed
Ziprasidone Hcl	Ziprasidone Hcl	11	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	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