Healthcare provider profile · identity verified

Eric John Prenger, MD

Family Practice · SIDNEY, OH · NPI 1912128083

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	464	122
Lisinopril	Lisinopril	422	121
Levothyroxine Sodium	Levothyroxine Sodium	339	78
Sertraline Hcl	Sertraline Hcl	278	61
Amlodipine Besylate	Amlodipine Besylate	276	72
Metformin Hcl	Metformin Hcl	251	64
Pantoprazole Sodium	Pantoprazole Sodium	219	55
Gabapentin	Gabapentin	188	43
Losartan Potassium	Losartan Potassium	186	46
Omeprazole	Omeprazole	177	43
Tamsulosin Hcl	Tamsulosin Hcl	156	44
Metoprolol Tartrate	Metoprolol Tartrate	154	33
Simvastatin	Simvastatin	131	34
Famotidine	Famotidine	126	35
Warfarin Sodium	Warfarin Sodium	113	18
Escitalopram Oxalate	Escitalopram Oxalate	111	32
Hydrochlorothiazide	Hydrochlorothiazide	105	34
Metoprolol Succinate	Metoprolol Succinate	105	32
Trazodone Hcl	Trazodone Hcl	103	23
Furosemide	Furosemide	101	27
Prednisone	Prednisone	97	46
Pioglitazone Hcl	Pioglitazone Hcl	96	25
Albuterol Sulfate Hfa	Albuterol Sulfate	94	30
Diclofenac Sodium	Diclofenac Sodium	88	29
Montelukast Sodium	Montelukast Sodium	88	29
Eliquis	Apixaban	86	15
Quetiapine Fumarate	Quetiapine Fumarate	77	14
Alprazolam	Alprazolam	76	11
Donepezil Hcl	Donepezil Hcl	75	18
Pravastatin Sodium	Pravastatin Sodium	75	25
Citalopram Hbr	Citalopram Hydrobromide	72	13
Rosuvastatin Calcium	Rosuvastatin Calcium	68	21
Potassium Chloride	Potassium Chloride	67	18
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	66	20
Trulicity	Dulaglutide	66	13
Clopidogrel	Clopidogrel Bisulfate	61	16
Irbesartan	Irbesartan	59	15
Fluticasone Propionate	Fluticasone Propionate	58	27
Cephalexin	Cephalexin	54	33
Glipizide	Glipizide	54	16
Carvedilol	Carvedilol	53	13
Memantine Hcl	Memantine Hcl	53	suppressed
Ondansetron Odt	Ondansetron	53	11
Ropinirole Hcl	Ropinirole Hcl	51	12
Atenolol	Atenolol	50	13
Isosorbide Mononitrate Er	Isosorbide Mononitrate	50	14
Paroxetine Hcl	Paroxetine Hcl	50	suppressed
Spironolactone	Spironolactone	50	17
Synthroid	Levothyroxine Sodium	49	15
Buspirone Hcl	Buspirone Hcl	46	14
Duloxetine Hcl	Duloxetine Hcl	45	12
Alendronate Sodium	Alendronate Sodium	42	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	42	12
Naproxen	Naproxen	41	13
Meloxicam	Meloxicam	40	suppressed
Bupropion Xl	Bupropion Hcl	39	14
Glipizide Er	Glipizide	39	11
Metformin Hcl Er	Metformin Hcl	39	11
Allopurinol	Allopurinol	38	11
Finasteride	Finasteride	35	11
Amitriptyline Hcl	Amitriptyline Hcl	33	13
Oxybutynin Chloride Er	Oxybutynin Chloride	33	suppressed
Amoxicillin	Amoxicillin	32	30
Breo Ellipta	Fluticasone/Vilanterol	32	suppressed
Bumetanide	Bumetanide	32	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	32	suppressed
Divalproex Sodium	Divalproex Sodium	30	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	30	suppressed
Tramadol Hcl	Tramadol Hcl	30	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	29	24
Methocarbamol	Methocarbamol	29	suppressed
Mirtazapine	Mirtazapine	28	suppressed
Tizanidine Hcl	Tizanidine Hcl	28	suppressed
Xarelto	Rivaroxaban	28	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	27	suppressed
Midodrine Hcl	Midodrine Hcl	27	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	26	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	26	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	26	18
Ibuprofen	Ibuprofen	25	suppressed
Valacyclovir	Valacyclovir Hcl	25	11
Baclofen	Baclofen	24	suppressed
Glycopyrrolate	Glycopyrrolate	24	suppressed
Lorazepam	Lorazepam	24	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	24	suppressed
Lovastatin	Lovastatin	24	suppressed
Tresiba Flextouch U-100	Insulin Degludec	23	suppressed
Cefuroxime	Cefuroxime Axetil	22	18
Oxybutynin Chloride	Oxybutynin Chloride	22	suppressed
Valsartan	Valsartan	22	suppressed
Jardiance	Empagliflozin	21	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	21	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	20	12
Primidone	Primidone	20	suppressed
Propranolol Hcl	Propranolol Hcl	20	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	20	15
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	20	suppressed
Glimepiride	Glimepiride	19	suppressed
Levofloxacin	Levofloxacin	19	15
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	18	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	18	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	18	suppressed
Ozempic	Semaglutide	18	suppressed
Raloxifene Hcl	Raloxifene Hcl	18	suppressed
Aripiprazole	Aripiprazole	17	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	17	15
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	17	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	17	suppressed
Temazepam	Temazepam	17	suppressed
Benazepril Hcl	Benazepril Hcl	16	suppressed
Hydralazine Hcl	Hydralazine Hcl	16	suppressed
Jantoven	Warfarin Sodium	16	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	15	suppressed
Ezetimibe	Ezetimibe	15	suppressed
Fluconazole	Fluconazole	15	11
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	15	suppressed
Loperamide	Loperamide Hcl	15	suppressed
Spiriva Respimat	Tiotropium Bromide	15	suppressed
Mesalamine	Mesalamine	14	suppressed
Nystatin	Nystatin	14	11
Wixela Inhub	Fluticasone Propion/Salmeterol	14	suppressed
Alprazolam Er	Alprazolam	13	suppressed
Azithromycin	Azithromycin	13	12
Bethanechol Chloride	Bethanechol Chloride	13	suppressed
Febuxostat	Febuxostat	13	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	13	suppressed
Lansoprazole	Lansoprazole	13	suppressed
Levetiracetam	Levetiracetam	13	suppressed
Spiriva Handihaler	Tiotropium Bromide	13	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	13	suppressed
Farxiga	Dapagliflozin Propanediol	12	suppressed
Hydrocortisone	Hydrocortisone	12	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Linzess	Linaclotide	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Scopolamine	Scopolamine	12	suppressed
Terazosin Hcl	Terazosin Hcl	12	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	12	suppressed
Clonazepam	Clonazepam	11	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	11	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	11	suppressed
Sucralfate	Sucralfate	11	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	11	suppressed
Torsemide	Torsemide	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