Healthcare provider profile · identity verified

Michael Gross, MD

Family Practice · LOUISVILLE, KY · NPI 1568493328

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	479	137
Lisinopril	Lisinopril	295	82
Pantoprazole Sodium	Pantoprazole Sodium	266	84
Amlodipine Besylate	Amlodipine Besylate	257	81
Losartan Potassium	Losartan Potassium	233	71
Rosuvastatin Calcium	Rosuvastatin Calcium	224	71
Levothyroxine Sodium	Levothyroxine Sodium	212	64
Fluticasone Propionate	Fluticasone Propionate	199	78
Furosemide	Furosemide	186	57
Albuterol Sulfate Hfa	Albuterol Sulfate	177	62
Metoprolol Succinate	Metoprolol Succinate	169	53
Trazodone Hcl	Trazodone Hcl	169	52
Carvedilol	Carvedilol	168	52
Metformin Hcl	Metformin Hcl	160	47
Tamsulosin Hcl	Tamsulosin Hcl	158	56
Hydrochlorothiazide	Hydrochlorothiazide	142	42
Omeprazole	Omeprazole	135	40
Gabapentin	Gabapentin	130	37
Tizanidine Hcl	Tizanidine Hcl	130	53
Diclofenac Sodium	Diclofenac Sodium	120	49
Metoprolol Tartrate	Metoprolol Tartrate	119	35
Eliquis	Apixaban	115	29
Sertraline Hcl	Sertraline Hcl	99	33
Isosorbide Mononitrate Er	Isosorbide Mononitrate	98	29
Metformin Hcl Er	Metformin Hcl	98	32
Clopidogrel	Clopidogrel Bisulfate	93	31
Pravastatin Sodium	Pravastatin Sodium	89	30
Duloxetine Hcl	Duloxetine Hcl	88	21
Allopurinol	Allopurinol	87	23
Hydroxyzine Hcl	Hydroxyzine Hcl	87	27
Glipizide	Glipizide	79	25
Donepezil Hcl	Donepezil Hcl	75	21
Potassium Chloride	Potassium Chloride	75	24
Meloxicam	Meloxicam	73	23
Citalopram Hbr	Citalopram Hydrobromide	70	23
Prednisone	Prednisone	69	43
Warfarin Sodium	Warfarin Sodium	69	18
Hydralazine Hcl	Hydralazine Hcl	64	25
Vitamin D2	Ergocalciferol (Vitamin D2)	64	24
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	61	16
Triamcinolone Acetonide	Triamcinolone Acetonide	61	25
Simvastatin	Simvastatin	60	16
Doxycycline Monohydrate	Doxycycline Monohydrate	57	37
Bumetanide	Bumetanide	56	15
Buspirone Hcl	Buspirone Hcl	56	18
Oxybutynin Chloride Er	Oxybutynin Chloride	54	19
Finasteride	Finasteride	52	19
Mirtazapine	Mirtazapine	52	18
Azithromycin	Azithromycin	50	39
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	49	14
Nitroglycerin	Nitroglycerin	49	18
Spironolactone	Spironolactone	49	16
Methylprednisolone	Methylprednisolone	48	41
Pioglitazone Hcl	Pioglitazone Hcl	47	14
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	40	15
Tramadol Hcl	Tramadol Hcl	40	16
Alendronate Sodium	Alendronate Sodium	39	12
Naproxen	Naproxen	37	suppressed
Propranolol Hcl	Propranolol Hcl	35	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	34	suppressed
Meclizine Hcl	Meclizine Hcl	33	16
Montelukast Sodium	Montelukast Sodium	33	13
Pregabalin	Pregabalin	33	14
Ciprofloxacin Hcl	Ciprofloxacin Hcl	32	25
Fluconazole	Fluconazole	31	16
Memantine Hcl	Memantine Hcl	30	12
Baclofen	Baclofen	29	12
Dicyclomine Hcl	Dicyclomine Hcl	29	suppressed
Famotidine	Famotidine	29	14
Fluoxetine Hcl	Fluoxetine Hcl	29	suppressed
Glimepiride	Glimepiride	28	suppressed
Ibuprofen	Ibuprofen	27	suppressed
Ondansetron Odt	Ondansetron	27	13
Quetiapine Fumarate	Quetiapine Fumarate	26	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	25	suppressed
Ezetimibe	Ezetimibe	24	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	23	suppressed
Levetiracetam	Levetiracetam	23	suppressed
Atenolol	Atenolol	22	suppressed
Farxiga	Dapagliflozin Propanediol	22	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	22	suppressed
Acyclovir	Acyclovir	21	suppressed
Fenofibrate	Fenofibrate	21	suppressed
Glipizide Er	Glipizide	21	suppressed
Lorazepam	Lorazepam	21	suppressed
Ozempic	Semaglutide	21	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	21	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	20	18
Bupropion Xl	Bupropion Hcl	20	suppressed
Irbesartan	Irbesartan	20	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	20	suppressed
Clonidine Hcl	Clonidine Hcl	19	suppressed
Clotrimazole	Clotrimazole	19	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	19	suppressed
Novolin 70-30	Insulin Nph Hum/Reg Insulin Hm	19	suppressed
Ondansetron Hcl	Ondansetron Hcl	19	suppressed
Ranolazine Er	Ranolazine	19	suppressed
Alprazolam	Alprazolam	18	suppressed
Gemfibrozil	Gemfibrozil	18	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	17	suppressed
Brilinta	Ticagrelor	17	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	17	suppressed
Mitigare	Colchicine	17	suppressed
Ropinirole Hcl	Ropinirole Hcl	17	suppressed
Valacyclovir	Valacyclovir Hcl	17	suppressed
Flecainide Acetate	Flecainide Acetate	16	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	16	11
Colchicine	Colchicine	15	suppressed
Januvia	Sitagliptin Phosphate	15	suppressed
Methocarbamol	Methocarbamol	15	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Topiramate	Topiramate	15	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	14	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	14	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	13	suppressed
Jardiance	Empagliflozin	13	suppressed
Metronidazole	Metronidazole	13	11
Testosterone Cypionate	Testosterone Cypionate	13	suppressed
Amiodarone Hcl	Amiodarone Hcl	12	suppressed
Cephalexin	Cephalexin	12	11
Ibu	Ibuprofen	12	suppressed
Novolog Flexpen	Insulin Aspart	12	suppressed
Xarelto	Rivaroxaban	12	suppressed
Chlorthalidone	Chlorthalidone	11	suppressed
Droplet Pen Needle	Pen Needle, Diabetic	11	suppressed
Estradiol	Estradiol	11	suppressed
Latanoprost	Latanoprost	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