Healthcare provider profile · identity verified

Elizabeth E Obrien, M.D.

Internal Medicine · CARLINVILLE, IL · NPI 1881650570

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	913	191
Lisinopril	Lisinopril	774	176
Omeprazole	Omeprazole	615	120
Levothyroxine Sodium	Levothyroxine Sodium	595	112
Amlodipine Besylate	Amlodipine Besylate	529	121
Losartan Potassium	Losartan Potassium	490	113
Metoprolol Tartrate	Metoprolol Tartrate	486	106
Hydrochlorothiazide	Hydrochlorothiazide	484	110
Metoprolol Succinate	Metoprolol Succinate	484	105
Furosemide	Furosemide	435	88
Sertraline Hcl	Sertraline Hcl	356	70
Warfarin Sodium	Warfarin Sodium	318	30
Pantoprazole Sodium	Pantoprazole Sodium	311	61
Gabapentin	Gabapentin	300	60
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	261	51
Tramadol Hcl	Tramadol Hcl	255	56
Potassium Chloride	Potassium Chloride	252	37
Trazodone Hcl	Trazodone Hcl	241	52
Duloxetine Hcl	Duloxetine Hcl	223	36
Rosuvastatin Calcium	Rosuvastatin Calcium	220	49
Metformin Hcl	Metformin Hcl	219	54
Metformin Hcl Er	Metformin Hcl	218	51
Famotidine	Famotidine	214	37
Eliquis	Apixaban	213	38
Clopidogrel	Clopidogrel Bisulfate	206	39
Allopurinol	Allopurinol	199	37
Albuterol Sulfate Hfa	Albuterol Sulfate	193	51
Tamsulosin Hcl	Tamsulosin Hcl	179	47
Lorazepam	Lorazepam	176	47
Ropinirole Hcl	Ropinirole Hcl	175	29
Simvastatin	Simvastatin	172	43
Montelukast Sodium	Montelukast Sodium	170	34
Donepezil Hcl	Donepezil Hcl	160	26
Pravastatin Sodium	Pravastatin Sodium	147	38
Ozempic	Semaglutide	145	20
Mirtazapine	Mirtazapine	142	27
Clonazepam	Clonazepam	141	21
Alprazolam	Alprazolam	139	18
Glipizide	Glipizide	136	30
Fluoxetine Hcl	Fluoxetine Hcl	125	20
Venlafaxine Hcl Er	Venlafaxine Hcl	124	24
Citalopram Hbr	Citalopram Hydrobromide	115	26
Meloxicam	Meloxicam	115	31
Carvedilol	Carvedilol	114	33
Alendronate Sodium	Alendronate Sodium	111	21
Fluticasone Propionate	Fluticasone Propionate	110	34
Clonidine Hcl	Clonidine Hcl	109	23
Ezetimibe	Ezetimibe	98	24
Glipizide Er	Glipizide	95	19
Escitalopram Oxalate	Escitalopram Oxalate	93	21
Memantine Hcl	Memantine Hcl	92	13
Tizanidine Hcl	Tizanidine Hcl	87	19
Propranolol Hcl	Propranolol Hcl	86	17
Buspirone Hcl	Buspirone Hcl	85	15
Nifedipine Er	Nifedipine	85	12
Prednisone	Prednisone	85	60
Synthroid	Levothyroxine Sodium	79	19
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	74	27
Diclofenac Sodium	Diclofenac Sodium	72	15
Isosorbide Mononitrate Er	Isosorbide Mononitrate	72	13
Olmesartan Medoxomil	Olmesartan Medoxomil	70	11
Atenolol	Atenolol	69	13
Spironolactone	Spironolactone	68	14
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	66	17
Lovastatin	Lovastatin	64	12
Pregabalin	Pregabalin	63	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	61	15
Bupropion Xl	Bupropion Hcl	60	15
Januvia	Sitagliptin Phosphate	59	13
Paroxetine Hcl	Paroxetine Hcl	54	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	54	42
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	54	40
Torsemide	Torsemide	54	suppressed
Azithromycin	Azithromycin	53	49
Amitriptyline Hcl	Amitriptyline Hcl	52	11
Quetiapine Fumarate	Quetiapine Fumarate	51	suppressed
Valacyclovir	Valacyclovir Hcl	51	19
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	50	suppressed
Finasteride	Finasteride	48	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	48	12
Pioglitazone Hcl	Pioglitazone Hcl	48	12
Nystatin	Nystatin	45	21
Zolpidem Tartrate	Zolpidem Tartrate	45	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	44	11
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	41	suppressed
Enalapril Maleate	Enalapril Maleate	41	suppressed
Baclofen	Baclofen	39	11
Benazepril Hcl	Benazepril Hcl	39	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	39	suppressed
Bupropion Hcl Sr	Bupropion Hcl	36	suppressed
Ondansetron Hcl	Ondansetron Hcl	34	11
Temazepam	Temazepam	34	suppressed
Ibuprofen	Ibuprofen	33	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	31	suppressed
Symbicort	Budesonide/Formoterol Fumarate	31	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	30	27
Digoxin	Digoxin	30	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	30	suppressed
Valsartan	Valsartan	30	suppressed
Xarelto	Rivaroxaban	30	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	29	suppressed
Naproxen	Naproxen	29	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	28	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	28	suppressed
Irbesartan	Irbesartan	27	suppressed
Gemfibrozil	Gemfibrozil	26	suppressed
Novolog Flexpen	Insulin Aspart	26	suppressed
Ondansetron Odt	Ondansetron	26	13
Alcohol Prep Pads	Alcohol Antiseptic Pads	25	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	25	suppressed
Morphine Sulfate	Morphine Sulfate	25	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	24	20
Terazosin Hcl	Terazosin Hcl	24	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	23	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	23	suppressed
Celecoxib	Celecoxib	22	suppressed
Chlorthalidone	Chlorthalidone	22	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	22	suppressed
Estradiol	Estradiol	22	12
Fluconazole	Fluconazole	22	16
Glimepiride	Glimepiride	22	suppressed
Ketoconazole	Ketoconazole	22	12
Myrbetriq	Mirabegron	22	suppressed
Ventolin Hfa	Albuterol Sulfate	22	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Meclizine Hcl	Meclizine Hcl	21	suppressed
Morphine Sulfate Er	Morphine Sulfate	21	suppressed
Potassium Citrate Er	Potassium Citrate	21	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	21	suppressed
Diazepam	Diazepam	20	suppressed
Nitroglycerin	Nitroglycerin	20	13
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	19	19
Mupirocin	Mupirocin	19	suppressed
Ramipril	Ramipril	19	suppressed
Travoprost	Travoprost	19	suppressed
Trueplus Pen Needle	Pen Needle, Diabetic	19	suppressed
Clobetasol Propionate	Clobetasol Propionate	18	suppressed
Fenofibrate	Fenofibrate	18	suppressed
Jardiance	Empagliflozin	18	suppressed
Oxycodone Hcl	Oxycodone Hcl	18	suppressed
Primidone	Primidone	18	suppressed
Amiodarone Hcl	Amiodarone Hcl	17	suppressed
Armour Thyroid	Thyroid,pork	17	suppressed
Comfort Ez Pen Needle	Pen Needle, Diabetic	17	suppressed
Desloratadine	Desloratadine	17	suppressed
Minocycline Hcl	Minocycline Hcl	17	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	16	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	16	16
Alcohol Swabs	Alcohol Antiseptic Pads	16	suppressed
Breyna	Budesonide/Formoterol Fumarate	16	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	16	15
Humalog Kwikpen U-100	Insulin Lispro	16	suppressed
Labetalol Hcl	Labetalol Hcl	16	suppressed
Telmisartan	Telmisartan	16	suppressed
Verapamil Er	Verapamil Hcl	16	suppressed
Ibandronate Sodium	Ibandronate Sodium	15	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	15	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	15	suppressed
Propranolol Hcl Er	Propranolol Hcl	15	suppressed
Sildenafil Citrate	Sildenafil Citrate	15	suppressed
Topiramate	Topiramate	15	suppressed
Tresiba Flextouch U-100	Insulin Degludec	15	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	15	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	15	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	14	suppressed
Mounjaro	Tirzepatide	14	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	14	suppressed
Spiriva Handihaler	Tiotropium Bromide	14	suppressed
Varenicline Tartrate	Varenicline Tartrate	14	suppressed
Azelastine Hcl	Azelastine Hcl	13	suppressed
Brilinta	Ticagrelor	13	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	13	suppressed
Memantine Hcl Er	Memantine Hcl	13	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	13	suppressed
Rivastigmine	Rivastigmine Tartrate	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Dilt-Xr	Diltiazem Hcl	12	suppressed
Fenofibrate	Fenofibrate,micronized	12	suppressed
Insulin Aspart Flexpen	Insulin Aspart	12	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	12	suppressed
Levemir Flexpen	Insulin Detemir	12	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	12	suppressed
Phenytoin	Phenytoin	12	suppressed
Victoza 3-Pak	Liraglutide	12	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	suppressed
Hydralazine Hcl	Hydralazine Hcl	11	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	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