Healthcare provider profile · identity verified

Michael William Nash, M.D.

Family Practice · SAINT LOUIS, MO · NPI 1376577825

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	507	87
Amlodipine Besylate	Amlodipine Besylate	323	55
Levothyroxine Sodium	Levothyroxine Sodium	306	43
Furosemide	Furosemide	304	60
Gabapentin	Gabapentin	280	52
Trazodone Hcl	Trazodone Hcl	259	37
Eliquis	Apixaban	236	35
Pantoprazole Sodium	Pantoprazole Sodium	228	45
Potassium Chloride	Potassium Chloride	186	34
Omeprazole	Omeprazole	174	24
Sertraline Hcl	Sertraline Hcl	172	26
Carvedilol	Carvedilol	168	26
Tamsulosin Hcl	Tamsulosin Hcl	143	34
Citalopram Hbr	Citalopram Hydrobromide	135	12
Clopidogrel	Clopidogrel Bisulfate	134	22
Metoprolol Tartrate	Metoprolol Tartrate	122	21
Baclofen	Baclofen	112	15
Escitalopram Oxalate	Escitalopram Oxalate	112	19
Losartan Potassium	Losartan Potassium	111	24
Allopurinol	Allopurinol	101	13
Pravastatin Sodium	Pravastatin Sodium	99	12
Xarelto	Rivaroxaban	99	suppressed
Memantine Hcl	Memantine Hcl	97	20
Quetiapine Fumarate	Quetiapine Fumarate	95	16
Donepezil Hcl	Donepezil Hcl	94	21
Mirtazapine	Mirtazapine	91	26
Lisinopril	Lisinopril	89	28
Famotidine	Famotidine	81	13
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	73	11
Doxazosin Mesylate	Doxazosin Mesylate	71	suppressed
Duloxetine Hcl	Duloxetine Hcl	69	13
Rosuvastatin Calcium	Rosuvastatin Calcium	69	suppressed
Metoprolol Succinate	Metoprolol Succinate	67	22
Fluticasone Propionate	Fluticasone Propionate	63	20
Hydrocortisone	Hydrocortisone	60	suppressed
Oxycodone Hcl	Oxycodone Hcl	60	16
Isosorbide Mononitrate Er	Isosorbide Mononitrate	59	suppressed
Jardiance	Empagliflozin	58	12
Entresto	Sacubitril/Valsartan	57	suppressed
Finasteride	Finasteride	56	14
Hydralazine Hcl	Hydralazine Hcl	56	18
Metformin Hcl	Metformin Hcl	56	16
Nifedipine Er	Nifedipine	56	suppressed
Montelukast Sodium	Montelukast Sodium	55	13
Olanzapine	Olanzapine	55	suppressed
Tramadol Hcl	Tramadol Hcl	52	21
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	51	16
Amiodarone Hcl	Amiodarone Hcl	50	suppressed
Buspirone Hcl	Buspirone Hcl	50	17
Spironolactone	Spironolactone	48	16
Alendronate Sodium	Alendronate Sodium	46	suppressed
Farxiga	Dapagliflozin Propanediol	46	suppressed
Meloxicam	Meloxicam	46	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	45	15
Levetiracetam	Levetiracetam	44	11
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	43	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	43	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	43	suppressed
Divalproex Sodium	Divalproex Sodium	42	suppressed
Warfarin Sodium	Warfarin Sodium	42	suppressed
Ondansetron Hcl	Ondansetron Hcl	40	27
Bupropion Hcl Sr	Bupropion Hcl	37	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	37	suppressed
Januvia	Sitagliptin Phosphate	36	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	34	12
Risperidone	Risperidone	34	suppressed
Simvastatin	Simvastatin	33	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	32	23
Carbidopa-Levodopa	Carbidopa/Levodopa	32	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	32	18
Lactulose	Lactulose	30	suppressed
Lamotrigine	Lamotrigine	30	suppressed
Sucralfate	Sucralfate	30	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	29	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	29	suppressed
Humalog Kwikpen U-100	Insulin Lispro	28	12
Namzaric	Memantine Hcl/Donepezil Hcl	28	suppressed
Primidone	Primidone	28	suppressed
Latanoprost	Latanoprost	27	suppressed
Riluzole	Riluzole	26	suppressed
Calcitriol	Calcitriol	25	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	24	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	23	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	23	suppressed
Paroxetine Hcl	Paroxetine Hcl	23	suppressed
Digoxin	Digoxin	22	suppressed
Ezetimibe	Ezetimibe	22	suppressed
Bethanechol Chloride	Bethanechol Chloride	21	suppressed
Cephalexin	Cephalexin	21	12
Meclizine Hcl	Meclizine Hcl	19	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	19	14
Pregabalin	Pregabalin	19	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	19	13
Celecoxib	Celecoxib	18	suppressed
Metformin Hcl Er	Metformin Hcl	18	suppressed
Propranolol Hcl	Propranolol Hcl	18	suppressed
Atenolol	Atenolol	17	suppressed
Fluconazole	Fluconazole	17	suppressed
Midodrine Hcl	Midodrine Hcl	17	suppressed
Ropinirole Hcl	Ropinirole Hcl	17	suppressed
Tradjenta	Linagliptin	16	suppressed
Brilinta	Ticagrelor	15	suppressed
Divalproex Sodium Er	Divalproex Sodium	15	suppressed
Trulicity	Dulaglutide	15	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	15	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	11
Creon	Lipase/Protease/Amylase	14	suppressed
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	14	suppressed
Lacosamide	Lacosamide	14	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Lidocaine	Lidocaine	14	suppressed
Benazepril Hcl	Benazepril Hcl	13	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	13	suppressed
Silver Sulfadiazine	Silver Sulfadiazine	13	suppressed
Corlanor	Ivabradine Hcl	12	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	12	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	12	suppressed
Nystatin	Nystatin	12	suppressed
Scopolamine	Scopolamine	12	suppressed
Tresiba Flextouch U-100	Insulin Degludec	12	suppressed
Acyclovir	Acyclovir	11	suppressed
Buprenorphine	Buprenorphine	11	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	11	suppressed
Prednisone	Prednisone	11	suppressed
Rivastigmine	Rivastigmine	11	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Valacyclovir	Valacyclovir 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