Healthcare provider profile · identity verified

Mohammad Shamshuddin, M.D.

Internal Medicine · TINLEY PARK, IL · NPI 1801896261

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	654	219
Atorvastatin Calcium	Atorvastatin Calcium	520	172
Pantoprazole Sodium	Pantoprazole Sodium	390	125
Losartan Potassium	Losartan Potassium	382	129
Rosuvastatin Calcium	Rosuvastatin Calcium	372	143
Metformin Hcl	Metformin Hcl	363	120
Gabapentin	Gabapentin	333	108
Tamsulosin Hcl	Tamsulosin Hcl	257	99
Levothyroxine Sodium	Levothyroxine Sodium	251	72
Celecoxib	Celecoxib	250	87
Metoprolol Tartrate	Metoprolol Tartrate	230	70
Lisinopril	Lisinopril	224	75
Potassium Chloride	Potassium Chloride	210	71
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	209	71
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	198	64
Furosemide	Furosemide	176	63
Metoprolol Succinate	Metoprolol Succinate	172	60
Carvedilol	Carvedilol	167	53
Azithromycin	Azithromycin	160	126
Montelukast Sodium	Montelukast Sodium	156	52
Jardiance	Empagliflozin	153	46
Omeprazole	Omeprazole	152	58
Glipizide Er	Glipizide	151	47
Hydralazine Hcl	Hydralazine Hcl	136	41
Albuterol Sulfate Hfa	Albuterol Sulfate	131	53
Desloratadine	Desloratadine	131	72
Pravastatin Sodium	Pravastatin Sodium	130	45
Allopurinol	Allopurinol	123	37
Diclofenac Sodium	Diclofenac Sodium	121	51
Eliquis	Apixaban	120	33
Tramadol Hcl	Tramadol Hcl	106	43
Simvastatin	Simvastatin	104	32
Duloxetine Hcl	Duloxetine Hcl	100	39
Clopidogrel	Clopidogrel Bisulfate	99	36
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	96	52
Ozempic	Semaglutide	95	36
Fluticasone Propionate	Fluticasone Propionate	88	38
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	88	47
Amoxicillin	Amoxicillin	83	75
Mounjaro	Tirzepatide	82	23
Clonidine Hcl	Clonidine Hcl	79	25
Linzess	Linaclotide	76	31
Hydrochlorothiazide	Hydrochlorothiazide	74	24
Meloxicam	Meloxicam	72	22
Finasteride	Finasteride	70	30
Vitamin D2	Ergocalciferol (Vitamin D2)	70	32
Tizanidine Hcl	Tizanidine Hcl	67	27
Nifedipine Er	Nifedipine	66	18
Atenolol	Atenolol	65	22
Glimepiride	Glimepiride	63	16
Spironolactone	Spironolactone	62	18
Warfarin Sodium	Warfarin Sodium	60	13
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	59	29
Prednisone	Prednisone	59	49
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	56	18
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	54	18
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	54	19
Tresiba Flextouch U-100	Insulin Degludec	54	11
Amitriptyline Hcl	Amitriptyline Hcl	53	18
Alprazolam	Alprazolam	52	19
Trulicity	Dulaglutide	51	15
Cefdinir	Cefdinir	50	46
Solifenacin Succinate	Solifenacin Succinate	50	15
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	48	44
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	48	14
Escitalopram Oxalate	Escitalopram Oxalate	47	16
Sertraline Hcl	Sertraline Hcl	45	18
Meclizine Hcl	Meclizine Hcl	44	20
Trazodone Hcl	Trazodone Hcl	44	16
Alendronate Sodium	Alendronate Sodium	43	16
Clonazepam	Clonazepam	43	suppressed
Entresto	Sacubitril/Valsartan	43	11
Ezetimibe	Ezetimibe	43	18
Valsartan	Valsartan	43	18
Metformin Hcl Er	Metformin Hcl	42	14
Farxiga	Dapagliflozin Propanediol	41	suppressed
Glipizide	Glipizide	40	15
Hydroxyzine Hcl	Hydroxyzine Hcl	40	15
Torsemide	Torsemide	40	12
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	38	suppressed
Famotidine	Famotidine	38	23
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	38	19
Enalapril Maleate	Enalapril Maleate	34	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	34	suppressed
Tresiba Flextouch U-200	Insulin Degludec	34	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	33	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	33	14
Promethazine Hcl	Promethazine Hcl	32	28
Ventolin Hfa	Albuterol Sulfate	32	13
Xarelto	Rivaroxaban	32	suppressed
Cephalexin	Cephalexin	31	30
Zolpidem Tartrate	Zolpidem Tartrate	31	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	30	suppressed
Novolog Flexpen	Insulin Aspart	30	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	30	11
Triamcinolone Acetonide	Triamcinolone Acetonide	30	16
Ciprofloxacin Hcl	Ciprofloxacin Hcl	28	22
Fenofibrate	Fenofibrate Nanocrystallized	28	12
Lovastatin	Lovastatin	28	suppressed
Donepezil Hcl	Donepezil Hcl	27	14
Isosorbide Mononitrate Er	Isosorbide Mononitrate	27	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	27	suppressed
Diclofenac Sodium-Misoprostol	Diclofenac Sodium/Misoprostol	26	17
Breo Ellipta	Fluticasone/Vilanterol	25	suppressed
Colchicine	Colchicine	25	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	25	11
Symbicort	Budesonide/Formoterol Fumarate	25	suppressed
Benazepril Hcl	Benazepril Hcl	24	suppressed
Lidocaine	Lidocaine	24	15
Esomeprazole Magnesium	Esomeprazole Magnesium	22	suppressed
Klor-Con M20	Potassium Chloride	22	11
Amiodarone Hcl	Amiodarone Hcl	21	suppressed
Ibuprofen	Ibuprofen	21	20
Methylprednisolone	Methylprednisolone	21	20
Spiriva Respimat	Tiotropium Bromide	21	suppressed
Hydrocortisone	Hydrocortisone	20	11
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	20	suppressed
Tradjenta	Linagliptin	20	suppressed
Ketoconazole	Ketoconazole	19	14
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	18	suppressed
Irbesartan	Irbesartan	18	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	18	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	17	suppressed
Humalog Mix 75-25 Kwikpen	Insulin Lispro Protamin/Lispro	16	suppressed
Memantine Hcl	Memantine Hcl	16	11
Nebivolol Hcl	Nebivolol Hcl	16	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	16	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	15	13
Febuxostat	Febuxostat	15	suppressed
Ondansetron Odt	Ondansetron	15	12
Paxlovid	Nirmatrelvir/Ritonavir	15	15
Primidone	Primidone	15	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	14	suppressed
Latanoprost	Latanoprost	14	suppressed
Naproxen	Naproxen	14	14
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	14	suppressed
Procto-Med Hc	Hydrocortisone	14	suppressed
Risedronate Sodium	Risedronate Sodium	14	suppressed
Ultra-Fine Micro Pen Needle	Pen Needle, Diabetic	14	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	13	suppressed
Levemir Flexpen	Insulin Detemir	13	suppressed
Mometasone Furoate	Mometasone Furoate	13	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	13	11
Temazepam	Temazepam	13	suppressed
Vascepa	Icosapent Ethyl	13	suppressed
Buspirone Hcl	Buspirone Hcl	12	suppressed
Clindamycin Hcl	Clindamycin Hcl	12	suppressed
Humulin N	Insulin Nph Human Isophane	12	suppressed
Levetiracetam	Levetiracetam	12	suppressed
Mirtazapine	Mirtazapine	12	suppressed
Novolin 70-30	Insulin Nph Hum/Reg Insulin Hm	12	suppressed
Pregabalin	Pregabalin	12	suppressed
Januvia	Sitagliptin Phosphate	11	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	11	suppressed
Ropinirole Hcl	Ropinirole Hcl	11	suppressed
Synthroid	Levothyroxine Sodium	11	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	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