Healthcare provider profile · identity verified

Christopher Martinek, M.D.

Family Practice · SPRINGFIELD, IL · NPI 1568877876

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	928	232
Lisinopril	Lisinopril	683	157
Rosuvastatin Calcium	Rosuvastatin Calcium	561	147
Amlodipine Besylate	Amlodipine Besylate	518	148
Hydrochlorothiazide	Hydrochlorothiazide	428	115
Tamsulosin Hcl	Tamsulosin Hcl	399	94
Metformin Hcl	Metformin Hcl	394	100
Levothyroxine Sodium	Levothyroxine Sodium	362	88
Omeprazole	Omeprazole	346	77
Pantoprazole Sodium	Pantoprazole Sodium	327	85
Losartan Potassium	Losartan Potassium	282	81
Famotidine	Famotidine	274	59
Metoprolol Succinate	Metoprolol Succinate	266	87
Eliquis	Apixaban	205	45
Furosemide	Furosemide	194	57
Fluticasone Propionate	Fluticasone Propionate	183	58
Gabapentin	Gabapentin	181	38
Duloxetine Hcl	Duloxetine Hcl	174	44
Sertraline Hcl	Sertraline Hcl	171	46
Pravastatin Sodium	Pravastatin Sodium	166	46
Pregabalin	Pregabalin	166	29
Albuterol Sulfate Hfa	Albuterol Sulfate	152	61
Simvastatin	Simvastatin	152	46
Trazodone Hcl	Trazodone Hcl	135	40
Buspirone Hcl	Buspirone Hcl	127	35
Farxiga	Dapagliflozin Propanediol	125	29
Metoprolol Tartrate	Metoprolol Tartrate	120	34
Venlafaxine Hcl Er	Venlafaxine Hcl	117	26
Allopurinol	Allopurinol	116	31
Bupropion Xl	Bupropion Hcl	108	27
Ezetimibe	Ezetimibe	104	35
Potassium Chloride	Potassium Chloride	102	36
Olmesartan Medoxomil	Olmesartan Medoxomil	96	40
Tramadol Hcl	Tramadol Hcl	94	29
Ozempic	Semaglutide	93	20
Rybelsus	Semaglutide	88	20
Propranolol Hcl	Propranolol Hcl	83	22
Montelukast Sodium	Montelukast Sodium	82	19
Spironolactone	Spironolactone	76	18
Jardiance	Empagliflozin	75	17
Warfarin Sodium	Warfarin Sodium	74	15
Fluoxetine Hcl	Fluoxetine Hcl	70	22
Mirtazapine	Mirtazapine	67	15
Alprazolam	Alprazolam	66	13
Meloxicam	Meloxicam	66	15
Pioglitazone Hcl	Pioglitazone Hcl	66	18
Escitalopram Oxalate	Escitalopram Oxalate	64	18
Metformin Hcl Er	Metformin Hcl	64	16
Carvedilol	Carvedilol	63	19
Finasteride	Finasteride	62	15
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	61	20
Atenolol	Atenolol	58	14
Citalopram Hbr	Citalopram Hydrobromide	58	18
Donepezil Hcl	Donepezil Hcl	58	suppressed
Topiramate	Topiramate	57	13
Trulicity	Dulaglutide	57	11
Valsartan	Valsartan	57	19
Lovastatin	Lovastatin	56	13
Clopidogrel	Clopidogrel Bisulfate	55	19
Glipizide	Glipizide	55	15
Clonidine Hcl	Clonidine Hcl	51	14
Lorazepam	Lorazepam	51	18
Azelastine Hcl	Azelastine Hcl	50	17
Hydralazine Hcl	Hydralazine Hcl	50	12
Nifedipine Er	Nifedipine	49	12
Diclofenac Sodium	Diclofenac Sodium	47	18
Isosorbide Mononitrate Er	Isosorbide Mononitrate	47	14
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	47	13
Glimepiride	Glimepiride	46	11
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	46	36
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	42	suppressed
Fenofibrate	Fenofibrate	42	13
Latanoprost	Latanoprost	42	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	42	suppressed
Aripiprazole	Aripiprazole	41	suppressed
Cephalexin	Cephalexin	41	35
Fenofibrate	Fenofibrate Nanocrystallized	41	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	39	suppressed
Fenofibrate	Fenofibrate,micronized	39	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	39	13
Paroxetine Hcl	Paroxetine Hcl	39	11
Prednisone	Prednisone	39	29
Ketoconazole	Ketoconazole	37	20
Lactulose	Lactulose	37	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	37	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	36	18
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	36	14
Ropinirole Hcl	Ropinirole Hcl	35	suppressed
Acarbose	Acarbose	34	suppressed
Diazepam	Diazepam	34	suppressed
Mometasone Furoate	Mometasone Furoate	34	20
Primidone	Primidone	34	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	33	suppressed
Terazosin Hcl	Terazosin Hcl	33	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	32	13
Memantine Hcl	Memantine Hcl	32	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	31	27
Clonazepam	Clonazepam	29	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	29	suppressed
Ondansetron Odt	Ondansetron	29	21
Amoxicillin	Amoxicillin	28	27
Chlorthalidone	Chlorthalidone	28	12
Meclizine Hcl	Meclizine Hcl	28	12
Alendronate Sodium	Alendronate Sodium	27	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	27	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	27	23
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	27	suppressed
Olanzapine	Olanzapine	27	suppressed
Azithromycin	Azithromycin	26	24
Benztropine Mesylate	Benztropine Mesylate	26	suppressed
Risperidone	Risperidone	26	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	25	20
Levetiracetam	Levetiracetam	25	suppressed
Valacyclovir	Valacyclovir Hcl	25	14
Mounjaro	Tirzepatide	24	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	24	suppressed
Nystatin	Nystatin	24	21
Bupropion Hcl	Bupropion Hcl	23	suppressed
Divalproex Sodium	Divalproex Sodium	23	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	22	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	22	suppressed
Mupirocin	Mupirocin	22	15
Amantadine	Amantadine Hcl	21	suppressed
Bupropion Hcl Sr	Bupropion Hcl	21	suppressed
Lamotrigine	Lamotrigine	21	suppressed
Naproxen	Naproxen	21	suppressed
Celecoxib	Celecoxib	20	suppressed
Symbicort	Budesonide/Formoterol Fumarate	20	suppressed
Synthroid	Levothyroxine Sodium	20	suppressed
Xarelto	Rivaroxaban	20	suppressed
Benazepril Hcl	Benazepril Hcl	19	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	19	suppressed
Fluconazole	Fluconazole	19	12
Desmopressin Acetate	Desmopressin Acetate	18	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	18	suppressed
Glycopyrrolate	Glycopyrrolate	18	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Betamethasone Dipropionate	Betamethasone Dipropionate	17	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Ventolin Hfa	Albuterol Sulfate	17	suppressed
Baclofen	Baclofen	16	suppressed
Breo Ellipta	Fluticasone/Vilanterol	16	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	16	15
Doxycycline Monohydrate	Doxycycline Monohydrate	16	14
Irbesartan	Irbesartan	16	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	16	suppressed
Candesartan Cilexetil	Candesartan Cilexetil	15	suppressed
Loperamide	Loperamide Hcl	15	11
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	15	suppressed
Spiriva Respimat	Tiotropium Bromide	15	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	14	suppressed
Dorzolamide Hcl	Dorzolamide Hcl	14	suppressed
Incruse Ellipta	Umeclidinium Bromide	14	suppressed
Novolog Flexpen	Insulin Aspart	14	suppressed
Tresiba Flextouch U-100	Insulin Degludec	14	suppressed
Verapamil Hcl	Verapamil Hcl	14	suppressed
Ciclopirox	Ciclopirox Olamine	13	suppressed
Dapagliflozin	Dapagliflozin Propanediol	13	suppressed
Dorzolamide-Timolol	Dorzolamide/Timolol/Pf	13	suppressed
Fentanyl	Fentanyl	13	suppressed
Glipizide Er	Glipizide	13	suppressed
Glyburide	Glyburide	13	suppressed
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	13	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	13	suppressed
Phenobarbital	Phenobarbital	13	suppressed
Propranolol Hcl Er	Propranolol Hcl	13	suppressed
Repatha Syringe	Evolocumab	13	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	12	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	12	suppressed
Balsalazide Disodium	Balsalazide Disodium	12	suppressed
Carbamazepine	Carbamazepine	12	suppressed
Desonide	Desonide	12	suppressed
Diclofenac Sodium-Misoprostol	Diclofenac Sodium/Misoprostol	12	suppressed
Nortrel	Norethindrone-Ethin. Estradiol	12	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	12	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	12	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	12	suppressed
Tradjenta	Linagliptin	12	suppressed
Breyna	Budesonide/Formoterol Fumarate	11	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Fluocinonide	Fluocinonide	11	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	11	suppressed
Prazosin Hcl	Prazosin Hcl	11	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	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