Healthcare provider profile · identity verified

Michael E Engel, MD

Family Practice · O'FALLON, MO · NPI 1861431983

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
Amlodipine Besylate	Amlodipine Besylate	386	153
Atorvastatin Calcium	Atorvastatin Calcium	317	121
Albuterol Sulfate Hfa	Albuterol Sulfate	273	96
Gabapentin	Gabapentin	260	78
Losartan Potassium	Losartan Potassium	227	88
Diclofenac Sodium	Diclofenac Sodium	215	101
Rosuvastatin Calcium	Rosuvastatin Calcium	209	78
Lisinopril	Lisinopril	183	67
Pantoprazole Sodium	Pantoprazole Sodium	177	78
Tramadol Hcl	Tramadol Hcl	136	36
Furosemide	Furosemide	135	58
Carvedilol	Carvedilol	133	50
Trazodone Hcl	Trazodone Hcl	127	53
Fluticasone Propionate	Fluticasone Propionate	124	59
Methylprednisolone	Methylprednisolone	115	81
Tizanidine Hcl	Tizanidine Hcl	113	65
Hydrochlorothiazide	Hydrochlorothiazide	105	45
Metformin Hcl	Metformin Hcl	105	40
Omeprazole	Omeprazole	101	34
Triamcinolone Acetonide	Triamcinolone Acetonide	101	43
Metoprolol Succinate	Metoprolol Succinate	98	39
Prednisone	Prednisone	98	35
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	97	37
Baclofen	Baclofen	95	24
Metformin Hcl Er	Metformin Hcl	90	30
Allopurinol	Allopurinol	86	33
Potassium Chloride	Potassium Chloride	84	33
Meloxicam	Meloxicam	79	36
Tamsulosin Hcl	Tamsulosin Hcl	79	37
Glipizide	Glipizide	75	26
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	74	11
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	73	11
Oxybutynin Chloride Er	Oxybutynin Chloride	73	29
Levothyroxine Sodium	Levothyroxine Sodium	69	24
Ibuprofen	Ibuprofen	68	28
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	65	24
Clopidogrel	Clopidogrel Bisulfate	64	25
Ondansetron Odt	Ondansetron	62	40
Hydralazine Hcl	Hydralazine Hcl	59	25
Metoprolol Tartrate	Metoprolol Tartrate	58	23
Amoxicillin	Amoxicillin	55	33
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	52	24
Ozempic	Semaglutide	50	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	49	suppressed
Montelukast Sodium	Montelukast Sodium	48	17
Warfarin Sodium	Warfarin Sodium	48	11
Trulicity	Dulaglutide	45	suppressed
Alendronate Sodium	Alendronate Sodium	44	13
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	44	36
Bumetanide	Bumetanide	43	16
Duloxetine Hcl	Duloxetine Hcl	43	18
Spironolactone	Spironolactone	42	18
Eliquis	Apixaban	41	18
Citalopram Hbr	Citalopram Hydrobromide	40	17
Simvastatin	Simvastatin	40	14
Naproxen	Naproxen	38	16
Azithromycin	Azithromycin	36	29
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	33	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	32	11
Jardiance	Empagliflozin	30	suppressed
Nifedipine Er	Nifedipine	30	14
Nitroglycerin	Nitroglycerin	30	14
Atenolol	Atenolol	29	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	29	suppressed
Famotidine	Famotidine	28	12
Hydroxyzine Hcl	Hydroxyzine Hcl	28	11
Latanoprost	Latanoprost	28	suppressed
Clonazepam	Clonazepam	27	suppressed
Mirtazapine	Mirtazapine	27	17
Oxycodone Hcl	Oxycodone Hcl	27	suppressed
Finasteride	Finasteride	25	11
Pioglitazone Hcl	Pioglitazone Hcl	25	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	24	11
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	24	suppressed
Fluconazole	Fluconazole	23	12
Novolin 70-30 Flexpen	Insulin Nph Hum/Reg Insulin Hm	23	suppressed
Sertraline Hcl	Sertraline Hcl	23	suppressed
Clonidine Hcl	Clonidine Hcl	22	suppressed
Donepezil Hcl	Donepezil Hcl	22	suppressed
Pregabalin	Pregabalin	22	suppressed
Promethazine Hcl	Promethazine Hcl	22	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	22	suppressed
Linzess	Linaclotide	21	suppressed
Memantine Hcl	Memantine Hcl	21	12
Pravastatin Sodium	Pravastatin Sodium	21	suppressed
Primidone	Primidone	21	suppressed
Cephalexin	Cephalexin	20	15
Chlorthalidone	Chlorthalidone	19	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	19	suppressed
Clobetasol Propionate	Clobetasol Propionate	18	suppressed
Topiramate	Topiramate	18	11
Venlafaxine Hcl Er	Venlafaxine Hcl	18	suppressed
Buspirone Hcl	Buspirone Hcl	17	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	17	suppressed
Azelastine Hcl	Azelastine Hcl	16	suppressed
Clindamycin Hcl	Clindamycin Hcl	16	11
Escitalopram Oxalate	Escitalopram Oxalate	16	suppressed
Alprazolam	Alprazolam	15	suppressed
Bupropion Hcl Sr	Bupropion Hcl	15	suppressed
Ropinirole Hcl	Ropinirole Hcl	15	suppressed
Sildenafil Citrate	Sildenafil Citrate	15	suppressed
Olanzapine	Olanzapine	14	suppressed
Morphine Sulfate Er	Morphine Sulfate	13	suppressed
Novolin 70-30	Insulin Nph Hum/Reg Insulin Hm	13	suppressed
Novolog Flexpen	Insulin Aspart	13	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	13	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	12	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	12	suppressed
Enalapril Maleate	Enalapril Maleate	12	suppressed
Insulin Aspart Flexpen	Insulin Aspart	12	suppressed
Klor-Con M20	Potassium Chloride	12	suppressed
Lactulose	Lactulose	12	suppressed
Loperamide	Loperamide Hcl	12	suppressed
Nystatin	Nystatin	12	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	12	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	11	suppressed
Gentamicin Sulfate	Gentamicin Sulfate	11	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	11	suppressed
Januvia	Sitagliptin Phosphate	11	suppressed
Methocarbamol	Methocarbamol	11	suppressed
Metronidazole	Metronidazole	11	suppressed
Semglee (Yfgn) Pen	Insulin Glargine-Yfgn	11	suppressed
Xarelto	Rivaroxaban	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