Healthcare provider profile · identity verified

Michael Fedak, M.D.

Internal Medicine · SAINT LOUIS, MO · NPI 1174514384

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	1034	305
Lisinopril	Lisinopril	567	167
Amlodipine Besylate	Amlodipine Besylate	547	166
Losartan Potassium	Losartan Potassium	364	118
Metoprolol Succinate	Metoprolol Succinate	349	100
Omeprazole	Omeprazole	315	103
Hydrochlorothiazide	Hydrochlorothiazide	296	88
Tamsulosin Hcl	Tamsulosin Hcl	288	91
Metformin Hcl	Metformin Hcl	275	89
Rosuvastatin Calcium	Rosuvastatin Calcium	266	80
Gabapentin	Gabapentin	207	59
Furosemide	Furosemide	195	53
Alprazolam	Alprazolam	174	52
Levothyroxine Sodium	Levothyroxine Sodium	174	51
Meloxicam	Meloxicam	174	57
Tramadol Hcl	Tramadol Hcl	154	46
Allopurinol	Allopurinol	148	44
Trazodone Hcl	Trazodone Hcl	142	44
Pantoprazole Sodium	Pantoprazole Sodium	141	44
Simvastatin	Simvastatin	131	38
Albuterol Sulfate Hfa	Albuterol Sulfate	129	51
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	123	34
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	119	28
Finasteride	Finasteride	118	35
Sertraline Hcl	Sertraline Hcl	113	37
Eliquis	Apixaban	109	28
Metoprolol Tartrate	Metoprolol Tartrate	109	34
Potassium Chloride	Potassium Chloride	109	34
Montelukast Sodium	Montelukast Sodium	106	37
Escitalopram Oxalate	Escitalopram Oxalate	101	34
Alendronate Sodium	Alendronate Sodium	100	30
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	93	93
Fluticasone Propionate	Fluticasone Propionate	86	38
Jardiance	Empagliflozin	85	28
Carvedilol	Carvedilol	80	27
Glimepiride	Glimepiride	80	21
Olmesartan Medoxomil	Olmesartan Medoxomil	79	26
Venlafaxine Hcl Er	Venlafaxine Hcl	78	23
Zolpidem Tartrate	Zolpidem Tartrate	76	20
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	74	24
Amitriptyline Hcl	Amitriptyline Hcl	72	26
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	72	71
Famotidine	Famotidine	72	23
Ozempic	Semaglutide	66	16
Clopidogrel	Clopidogrel Bisulfate	65	17
Spironolactone	Spironolactone	65	22
Azelastine Hcl	Azelastine Hcl	64	17
Semglee (Yfgn) Pen	Insulin Glargine-Yfgn	62	16
Arexvy	Rsvpref3 Antigen/As01e/Pf	59	59
Citalopram Hbr	Citalopram Hydrobromide	56	19
Atenolol	Atenolol	54	14
Buspirone Hcl	Buspirone Hcl	53	18
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	49	suppressed
Breo Ellipta	Fluticasone/Vilanterol	48	suppressed
Prednisone	Prednisone	47	32
Shingrix	Varicella-Zoster Ge/As01b/Pf	45	34
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	44	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	43	13
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	39	11
Xarelto	Rivaroxaban	39	13
Ezetimibe	Ezetimibe	38	suppressed
Lovastatin	Lovastatin	37	12
Ropinirole Hcl	Ropinirole Hcl	37	suppressed
Bupropion Xl	Bupropion Hcl	36	14
Insulin Aspart	Insulin Aspart	35	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	35	15
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	34	19
Fluoxetine Hcl	Fluoxetine Hcl	34	suppressed
Dabigatran Etexilate	Dabigatran Etexilate Mesylate	33	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	33	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	32	13
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	31	24
Novolin N	Insulin Nph Human Isophane	30	suppressed
Lorazepam	Lorazepam	29	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	28	18
Cilostazol	Cilostazol	27	suppressed
Hydralazine Hcl	Hydralazine Hcl	27	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	27	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	27	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	26	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	26	suppressed
Duloxetine Hcl	Duloxetine Hcl	26	suppressed
Naproxen	Naproxen	26	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	26	suppressed
Benzonatate	Benzonatate	25	14
Pravastatin Sodium	Pravastatin Sodium	25	suppressed
Chlorthalidone	Chlorthalidone	24	suppressed
Glipizide	Glipizide	24	suppressed
Ipratropium Bromide	Ipratropium Bromide	24	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	24	suppressed
Acyclovir	Acyclovir	23	suppressed
Labetalol Hcl	Labetalol Hcl	23	suppressed
Metformin Hcl Er	Metformin Hcl	23	suppressed
Bupropion Hcl Sr	Bupropion Hcl	22	suppressed
Ibuprofen	Ibuprofen	22	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	20	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	20	suppressed
Entresto	Sacubitril/Valsartan	20	suppressed
Mirtazapine	Mirtazapine	20	suppressed
Mounjaro	Tirzepatide	20	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	20	suppressed
Torsemide	Torsemide	20	suppressed
Varenicline Tartrate	Varenicline Tartrate	20	suppressed
Ramipril	Ramipril	19	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	19	suppressed
Tiotropium Bromide	Tiotropium Bromide	19	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	18	suppressed
Celecoxib	Celecoxib	18	suppressed
Diazepam	Diazepam	18	suppressed
Insulin Syringe	Syringe And Needle,insulin,1ml	18	suppressed
Pentoxifylline	Pentoxifylline	18	suppressed
Semglee (Yfgn)	Insulin Glargine-Yfgn	18	suppressed
Azithromycin	Azithromycin	17	14
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Metronidazole	Metronidazole	17	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	17	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	17	17
Sildenafil Citrate	Sildenafil Citrate	17	suppressed
Clonazepam	Clonazepam	16	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	16	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Nitroglycerin	Nitroglycerin	15	suppressed
Warfarin Sodium	Warfarin Sodium	15	suppressed
Benazepril Hcl	Benazepril Hcl	14	suppressed
Bethanechol Chloride	Bethanechol Chloride	14	suppressed
Levetiracetam	Levetiracetam	14	suppressed
Morphine Sulfate Er	Morphine Sulfate	14	suppressed
Paroxetine Hcl	Paroxetine Hcl	14	suppressed
Glycopyrrolate	Glycopyrrolate	13	suppressed
Klor-Con M20	Potassium Chloride	13	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	13	suppressed
Breyna	Budesonide/Formoterol Fumarate	12	suppressed
Cephalexin	Cephalexin	12	12
Estradiol	Estradiol	12	suppressed
Meclizine Hcl	Meclizine Hcl	12	suppressed
Pregabalin	Pregabalin	12	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	12	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Morphine Sulfate	Morphine Sulfate	11	suppressed
Oxycodone Hcl	Oxycodone Hcl	11	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	11	suppressed
Primidone	Primidone	11	suppressed
Tizanidine Hcl	Tizanidine 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