Healthcare provider profile · identity verified

Robert T Grossmann, MD

Family Practice · CENTERVILLE, OH · NPI 1053686683

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	513	60
Levothyroxine Sodium	Levothyroxine Sodium	494	52
Amlodipine Besylate	Amlodipine Besylate	309	41
Furosemide	Furosemide	272	43
Eliquis	Apixaban	267	38
Gabapentin	Gabapentin	249	38
Potassium Chloride	Potassium Chloride	240	36
Memantine Hcl	Memantine Hcl	239	35
Pantoprazole Sodium	Pantoprazole Sodium	232	38
Donepezil Hcl	Donepezil Hcl	221	33
Mirtazapine	Mirtazapine	218	33
Trazodone Hcl	Trazodone Hcl	192	29
Losartan Potassium	Losartan Potassium	190	24
Tamsulosin Hcl	Tamsulosin Hcl	187	33
Sertraline Hcl	Sertraline Hcl	186	22
Metoprolol Succinate	Metoprolol Succinate	179	24
Duloxetine Hcl	Duloxetine Hcl	153	21
Buspirone Hcl	Buspirone Hcl	152	23
Omeprazole	Omeprazole	138	28
Lisinopril	Lisinopril	130	18
Escitalopram Oxalate	Escitalopram Oxalate	124	16
Metoprolol Tartrate	Metoprolol Tartrate	118	16
Lorazepam	Lorazepam	115	17
Finasteride	Finasteride	111	18
Hydroxyzine Pamoate	Hydroxyzine Pamoate	100	20
Allopurinol	Allopurinol	96	13
Spironolactone	Spironolactone	86	16
Jardiance	Empagliflozin	80	11
Carvedilol	Carvedilol	79	13
Montelukast Sodium	Montelukast Sodium	78	suppressed
Loperamide	Loperamide Hcl	77	13
Clopidogrel	Clopidogrel Bisulfate	76	13
Divalproex Sodium	Divalproex Sodium	76	19
Januvia	Sitagliptin Phosphate	74	suppressed
Oxycodone Hcl	Oxycodone Hcl	72	18
Simvastatin	Simvastatin	70	suppressed
Ondansetron Odt	Ondansetron	69	31
Methocarbamol	Methocarbamol	65	23
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	59	11
Famotidine	Famotidine	55	14
Lacosamide	Lacosamide	53	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	52	suppressed
Ropinirole Hcl	Ropinirole Hcl	49	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	48	suppressed
Warfarin Sodium	Warfarin Sodium	48	suppressed
Alprazolam	Alprazolam	46	suppressed
Fluticasone Propionate	Fluticasone Propionate	46	16
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	46	suppressed
Aripiprazole	Aripiprazole	45	suppressed
Myrbetriq	Mirabegron	45	suppressed
Metformin Hcl	Metformin Hcl	44	11
Midodrine Hcl	Midodrine Hcl	43	suppressed
Pravastatin Sodium	Pravastatin Sodium	43	suppressed
Tramadol Hcl	Tramadol Hcl	42	17
Ceftriaxone	Ceftriaxone Sodium	41	26
Lamotrigine	Lamotrigine	41	suppressed
Prednisone	Prednisone	40	20
Alendronate Sodium	Alendronate Sodium	38	12
Lidocaine Hcl	Lidocaine Hcl	38	23
Baclofen	Baclofen	31	suppressed
Digoxin	Digoxin	31	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	31	suppressed
Promethazine Hcl	Promethazine Hcl	31	16
Rosuvastatin Calcium	Rosuvastatin Calcium	30	suppressed
Nifedipine Er	Nifedipine	29	suppressed
Rivastigmine	Rivastigmine Tartrate	29	suppressed
Torsemide	Torsemide	29	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	28	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	28	suppressed
Estradiol	Estradiol	28	suppressed
Hydrocortisone	Hydrocortisone	28	suppressed
Xarelto	Rivaroxaban	27	suppressed
Calcitriol	Calcitriol	25	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	25	suppressed
Latanoprost	Latanoprost	25	suppressed
Clonidine Hcl	Clonidine Hcl	24	suppressed
Gemtesa	Vibegron	24	suppressed
Novolog Flexpen	Insulin Aspart	24	suppressed
Amoxicillin	Amoxicillin	22	11
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	22	14
Cinacalcet Hcl	Cinacalcet Hcl	22	suppressed
Hydralazine Hcl	Hydralazine Hcl	22	suppressed
Levetiracetam	Levetiracetam	22	suppressed
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	22	suppressed
Memantine Hcl Er	Memantine Hcl	22	suppressed
Temazepam	Temazepam	22	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	21	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	21	12
Tradjenta	Linagliptin	21	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	20	16
Amiodarone Hcl	Amiodarone Hcl	20	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	20	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	20	suppressed
Mounjaro	Tirzepatide	20	suppressed
Trulicity	Dulaglutide	20	suppressed
Phenobarbital	Phenobarbital	19	suppressed
Fluconazole	Fluconazole	18	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	18	suppressed
Ondansetron Hcl	Ondansetron Hcl	18	14
Citalopram Hbr	Citalopram Hydrobromide	17	suppressed
Ezetimibe	Ezetimibe	17	suppressed
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	17	15
Mirabegron Er	Mirabegron	17	suppressed
Nystatin	Nystatin	17	suppressed
Spiriva Respimat	Tiotropium Bromide	17	suppressed
Ipratropium Bromide	Ipratropium Bromide	16	suppressed
Tizanidine Hcl	Tizanidine Hcl	16	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	16	suppressed
Alprazolam Er	Alprazolam	15	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	14	suppressed
Cefuroxime	Cefuroxime Axetil	14	12
Cephalexin	Cephalexin	14	11
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	14	suppressed
Lithium Carbonate	Lithium Carbonate	14	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	14	suppressed
Sodium Chloride	0.9 % Sodium Chloride	14	suppressed
Candesartan Cilexetil	Candesartan Cilexetil	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Letrozole	Letrozole	13	suppressed
Pregabalin	Pregabalin	13	suppressed
Rivastigmine	Rivastigmine	13	suppressed
Bupropion Xl	Bupropion Hcl	12	suppressed
Clonidine	Clonidine	12	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	12	suppressed
Kapspargo Sprinkle	Metoprolol Succinate	12	suppressed
Meclizine Hcl	Meclizine Hcl	12	suppressed
Trospium Chloride Er	Trospium Chloride	12	suppressed
Zonisamide	Zonisamide	12	suppressed
Fenofibrate	Fenofibrate	11	suppressed
Incruse Ellipta	Umeclidinium Bromide	11	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	11	suppressed
Levofloxacin	Levofloxacin	11	suppressed
Nyamyc	Nystatin	11	suppressed
Risperidone	Risperidone	11	suppressed
Roflumilast	Roflumilast	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