Healthcare provider profile · identity verified

John E Lambert, DO

Family Practice · BEAVER DAM, WI · NPI 1710121215

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	619	159
Lisinopril	Lisinopril	412	112
Omeprazole	Omeprazole	307	76
Metoprolol Succinate	Metoprolol Succinate	272	72
Amlodipine Besylate	Amlodipine Besylate	271	78
Levothyroxine Sodium	Levothyroxine Sodium	259	67
Gabapentin	Gabapentin	235	60
Losartan Potassium	Losartan Potassium	191	48
Furosemide	Furosemide	187	45
Metformin Hcl	Metformin Hcl	177	41
Tamsulosin Hcl	Tamsulosin Hcl	168	39
Hydrochlorothiazide	Hydrochlorothiazide	143	36
Metoprolol Tartrate	Metoprolol Tartrate	142	30
Eliquis	Apixaban	128	30
Simvastatin	Simvastatin	119	29
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	116	28
Pantoprazole Sodium	Pantoprazole Sodium	112	24
Metformin Hcl Er	Metformin Hcl	109	30
Fluticasone Propionate	Fluticasone Propionate	101	46
Trulicity	Dulaglutide	101	16
Sertraline Hcl	Sertraline Hcl	95	24
Allopurinol	Allopurinol	92	23
Potassium Chloride	Potassium Chloride	89	21
Albuterol Sulfate Hfa	Albuterol Sulfate	87	40
Clopidogrel	Clopidogrel Bisulfate	87	23
Rosuvastatin Calcium	Rosuvastatin Calcium	86	20
Pravastatin Sodium	Pravastatin Sodium	81	21
Tramadol Hcl	Tramadol Hcl	71	18
Trazodone Hcl	Trazodone Hcl	66	19
Warfarin Sodium	Warfarin Sodium	66	13
Glipizide Er	Glipizide	64	17
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	63	14
Fluoxetine Hcl	Fluoxetine Hcl	61	20
Oxycodone Hcl	Oxycodone Hcl	60	11
Chlorthalidone	Chlorthalidone	58	17
Finasteride	Finasteride	57	13
Glipizide	Glipizide	54	suppressed
Ozempic	Semaglutide	54	13
Diclofenac Sodium	Diclofenac Sodium	53	14
Atenolol	Atenolol	51	15
Alendronate Sodium	Alendronate Sodium	49	12
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	48	22
Carvedilol	Carvedilol	47	14
Duloxetine Hcl	Duloxetine Hcl	45	11
Pregabalin	Pregabalin	44	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	42	suppressed
Xarelto	Rivaroxaban	42	suppressed
Alprazolam	Alprazolam	41	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	41	12
Amitriptyline Hcl	Amitriptyline Hcl	40	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	40	16
Doxazosin Mesylate	Doxazosin Mesylate	39	suppressed
Jardiance	Empagliflozin	38	suppressed
Famotidine	Famotidine	37	12
Mirtazapine	Mirtazapine	35	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	32	suppressed
Valsartan	Valsartan	32	suppressed
Prednisone	Prednisone	29	21
Glimepiride	Glimepiride	27	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	26	suppressed
Latanoprost	Latanoprost	26	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	26	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	24	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	24	15
Synthroid	Levothyroxine Sodium	24	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	24	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	23	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	23	suppressed
Citalopram Hbr	Citalopram Hydrobromide	22	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	22	suppressed
Meloxicam	Meloxicam	22	suppressed
Lovastatin	Lovastatin	21	suppressed
Montelukast Sodium	Montelukast Sodium	21	suppressed
Nitroglycerin Patch	Nitroglycerin	21	suppressed
Paroxetine Hcl	Paroxetine Hcl	21	suppressed
Bupropion Hcl Sr	Bupropion Hcl	20	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	19	14
Baclofen	Baclofen	19	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	19	suppressed
Hydralazine Hcl	Hydralazine Hcl	18	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	18	suppressed
Spironolactone	Spironolactone	18	suppressed
Buspirone Hcl	Buspirone Hcl	17	suppressed
Enalapril Maleate	Enalapril Maleate	17	suppressed
Ibuprofen	Ibuprofen	17	suppressed
Propranolol Hcl	Propranolol Hcl	17	suppressed
Spiriva Handihaler	Tiotropium Bromide	17	suppressed
Sucralfate	Sucralfate	17	suppressed
Farxiga	Dapagliflozin Propanediol	16	suppressed
Lorazepam	Lorazepam	16	suppressed
Memantine Hcl	Memantine Hcl	16	suppressed
Novolog Flexpen	Insulin Aspart	16	suppressed
Nystatin	Nystatin	16	suppressed
Tizanidine Hcl	Tizanidine Hcl	16	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	16	suppressed
Benazepril Hcl	Benazepril Hcl	15	suppressed
Bupropion Xl	Bupropion Hcl	15	suppressed
Indomethacin	Indomethacin	15	suppressed
Loperamide	Loperamide Hcl	15	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	15	suppressed
Nitroglycerin	Nitroglycerin	15	15
Amoxicillin	Amoxicillin	14	11
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	14	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	14	suppressed
Azithromycin	Azithromycin	13	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	13	suppressed
Clonazepam	Clonazepam	13	suppressed
Clotrimazole	Clotrimazole	13	suppressed
Ezetimibe	Ezetimibe	13	suppressed
Fenofibrate	Fenofibrate	13	suppressed
Linzess	Linaclotide	13	suppressed
Mounjaro	Tirzepatide	13	suppressed
Norethindron-Ethinyl Estradiol	Norethindrone Ac/Eth Estradiol	13	suppressed
Penicillin V Potassium	Penicillin V Potassium	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	12	suppressed
Fenofibrate	Fenofibrate,micronized	12	suppressed
Januvia	Sitagliptin Phosphate	12	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	12	suppressed
Terazosin Hcl	Terazosin Hcl	12	suppressed
Ziprasidone Hcl	Ziprasidone Hcl	12	suppressed
Arnuity Ellipta	Fluticasone Furoate	11	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	11	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	11	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	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