Healthcare provider profile · identity verified

Iqbal Singh, M.D.

Hospitalist · BRENHAM, TX · NPI 1659754414

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	319	79
Eliquis	Apixaban	208	38
Amlodipine Besylate	Amlodipine Besylate	203	67
Gabapentin	Gabapentin	183	59
Levothyroxine Sodium	Levothyroxine Sodium	165	46
Furosemide	Furosemide	144	42
Lisinopril	Lisinopril	142	46
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	116	47
Donepezil Hcl	Donepezil Hcl	113	20
Losartan Potassium	Losartan Potassium	112	36
Prednisone	Prednisone	109	90
Metformin Hcl	Metformin Hcl	98	26
Pantoprazole Sodium	Pantoprazole Sodium	94	36
Metoprolol Tartrate	Metoprolol Tartrate	91	22
Trazodone Hcl	Trazodone Hcl	91	23
Carvedilol	Carvedilol	90	25
Sertraline Hcl	Sertraline Hcl	87	22
Cefdinir	Cefdinir	82	68
Tamsulosin Hcl	Tamsulosin Hcl	77	24
Divalproex Sodium	Divalproex Sodium	76	17
Fluoxetine Hcl	Fluoxetine Hcl	75	16
Hydrochlorothiazide	Hydrochlorothiazide	75	21
Metoprolol Succinate	Metoprolol Succinate	74	25
Mirtazapine	Mirtazapine	72	22
Gemtesa	Vibegron	70	suppressed
Omeprazole	Omeprazole	66	24
Ciprofloxacin Hcl	Ciprofloxacin Hcl	65	59
Duloxetine Hcl	Duloxetine Hcl	63	15
Albuterol Sulfate Hfa	Albuterol Sulfate	58	24
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	57	41
Hydralazine Hcl	Hydralazine Hcl	56	19
Fluticasone Propionate	Fluticasone Propionate	55	31
Clopidogrel	Clopidogrel Bisulfate	53	14
Spironolactone	Spironolactone	53	12
Memantine Hcl	Memantine Hcl	51	suppressed
Potassium Chloride	Potassium Chloride	49	16
Escitalopram Oxalate	Escitalopram Oxalate	48	12
Famotidine	Famotidine	45	15
Montelukast Sodium	Montelukast Sodium	45	11
Myrbetriq	Mirabegron	45	suppressed
Nifedipine Er	Nifedipine	44	14
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	43	14
Tramadol Hcl	Tramadol Hcl	43	33
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	42	38
Rosuvastatin Calcium	Rosuvastatin Calcium	42	14
Tizanidine Hcl	Tizanidine Hcl	42	31
Simvastatin	Simvastatin	41	16
Doxycycline Monohydrate	Doxycycline Monohydrate	40	34
Buspirone Hcl	Buspirone Hcl	38	16
Risperidone	Risperidone	36	suppressed
Allopurinol	Allopurinol	34	suppressed
Ezetimibe	Ezetimibe	34	suppressed
Methylprednisolone	Methylprednisolone	33	28
Tradjenta	Linagliptin	33	suppressed
Lactulose	Lactulose	32	suppressed
Levetiracetam	Levetiracetam	31	suppressed
Methocarbamol	Methocarbamol	31	suppressed
Timolol Maleate	Timolol Maleate	31	suppressed
Metformin Hcl Er	Metformin Hcl	30	suppressed
Lorazepam	Lorazepam	29	suppressed
Pravastatin Sodium	Pravastatin Sodium	28	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	27	suppressed
Latanoprost	Latanoprost	27	suppressed
Januvia	Sitagliptin Phosphate	26	suppressed
Sucralfate	Sucralfate	26	suppressed
Aripiprazole	Aripiprazole	25	suppressed
Atenolol	Atenolol	24	suppressed
Clonazepam	Clonazepam	24	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	23	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	23	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	23	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	22	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	22	19
Azithromycin	Azithromycin	20	17
Cephalexin	Cephalexin	20	17
Entresto	Sacubitril/Valsartan	20	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	20	16
Alendronate Sodium	Alendronate Sodium	19	suppressed
Budesonide	Budesonide	19	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	19	suppressed
Amiodarone Hcl	Amiodarone Hcl	18	suppressed
Citalopram Hbr	Citalopram Hydrobromide	18	suppressed
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	18	13
Midodrine Hcl	Midodrine Hcl	18	suppressed
Naloxone Hcl	Naloxone Hcl	18	18
Pregabalin	Pregabalin	18	suppressed
Premarin	Estrogens, Conjugated	18	suppressed
Albuterol Sulfate	Albuterol Sulfate	17	suppressed
Baclofen	Baclofen	17	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Farxiga	Dapagliflozin Propanediol	17	suppressed
Lubiprostone	Lubiprostone	16	suppressed
Meclizine Hcl	Meclizine Hcl	16	12
Nystatin	Nystatin	16	12
Ropinirole Hcl	Ropinirole Hcl	16	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	15	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	15	suppressed
Glipizide Er	Glipizide	15	suppressed
Meloxicam	Meloxicam	15	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	15	suppressed
Clobetasol Propionate	Clobetasol Propionate	14	suppressed
Enulose	Lactulose	14	suppressed
Fluconazole	Fluconazole	14	11
Humalog Kwikpen U-100	Insulin Lispro	14	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	14	suppressed
Torsemide	Torsemide	14	suppressed
Valacyclovir	Valacyclovir Hcl	14	suppressed
Acyclovir	Acyclovir	13	suppressed
Benztropine Mesylate	Benztropine Mesylate	13	suppressed
Chlorthalidone	Chlorthalidone	13	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	13	suppressed
Levofloxacin	Levofloxacin	13	12
Alprazolam	Alprazolam	12	suppressed
Bupropion Hcl Sr	Bupropion Hcl	12	suppressed
Febuxostat	Febuxostat	12	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	12	suppressed
Ondansetron Hcl	Ondansetron Hcl	12	suppressed
Paroxetine Hcl	Paroxetine Hcl	12	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	11	suppressed
Celecoxib	Celecoxib	11	suppressed
Clonidine Hcl	Clonidine Hcl	11	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	11	suppressed
Digoxin	Digoxin	11	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	suppressed
Estradiol	Estradiol	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