Healthcare provider profile · identity verified

Christopher Robert Lockhart, M.D.

Internal Medicine · HOUSTON, TX · NPI 1336180504

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	685	98
Eliquis	Apixaban	516	52
Levothyroxine Sodium	Levothyroxine Sodium	464	56
Amlodipine Besylate	Amlodipine Besylate	442	75
Furosemide	Furosemide	414	65
Gabapentin	Gabapentin	319	55
Potassium Chloride	Potassium Chloride	308	48
Pantoprazole Sodium	Pantoprazole Sodium	301	60
Losartan Potassium	Losartan Potassium	284	36
Tamsulosin Hcl	Tamsulosin Hcl	273	42
Sertraline Hcl	Sertraline Hcl	256	40
Lisinopril	Lisinopril	253	40
Metoprolol Tartrate	Metoprolol Tartrate	235	40
Donepezil Hcl	Donepezil Hcl	233	38
Metformin Hcl	Metformin Hcl	231	36
Mirtazapine	Mirtazapine	227	35
Clopidogrel	Clopidogrel Bisulfate	223	30
Carvedilol	Carvedilol	212	40
Hydralazine Hcl	Hydralazine Hcl	205	35
Levetiracetam	Levetiracetam	204	29
Buspirone Hcl	Buspirone Hcl	186	24
Omeprazole	Omeprazole	170	30
Metoprolol Succinate	Metoprolol Succinate	157	29
Divalproex Sodium	Divalproex Sodium	143	24
Memantine Hcl	Memantine Hcl	134	16
Trazodone Hcl	Trazodone Hcl	132	29
Xarelto	Rivaroxaban	131	12
Famotidine	Famotidine	130	24
Gemtesa	Vibegron	127	suppressed
Nifedipine Er	Nifedipine	112	20
Entresto	Sacubitril/Valsartan	110	suppressed
Baclofen	Baclofen	105	18
Risperidone	Risperidone	104	12
Latanoprost	Latanoprost	101	19
Escitalopram Oxalate	Escitalopram Oxalate	99	22
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	94	36
Finasteride	Finasteride	93	12
Lactulose	Lactulose	93	32
Citalopram Hbr	Citalopram Hydrobromide	80	13
Fluticasone Propionate	Fluticasone Propionate	80	19
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	80	33
Fluoxetine Hcl	Fluoxetine Hcl	79	15
Simvastatin	Simvastatin	73	suppressed
Ezetimibe	Ezetimibe	70	suppressed
Olanzapine	Olanzapine	69	suppressed
Tramadol Hcl	Tramadol Hcl	65	24
Januvia	Sitagliptin Phosphate	63	suppressed
Jardiance	Empagliflozin	62	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	62	suppressed
Bumetanide	Bumetanide	59	suppressed
Ropinirole Hcl	Ropinirole Hcl	59	suppressed
Montelukast Sodium	Montelukast Sodium	57	suppressed
Topiramate	Topiramate	57	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	56	11
Nuedexta	Dextromethorphan Hbr/Quinidine	55	suppressed
Spironolactone	Spironolactone	55	suppressed
Warfarin Sodium	Warfarin Sodium	55	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	53	suppressed
Pregabalin	Pregabalin	52	11
Valproic Acid	Valproic Acid (As Sodium Salt)	52	suppressed
Brilinta	Ticagrelor	51	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	51	12
Myrbetriq	Mirabegron	51	suppressed
Prednisone	Prednisone	50	18
Rosuvastatin Calcium	Rosuvastatin Calcium	50	suppressed
Sucralfate	Sucralfate	50	11
Clonidine Hcl	Clonidine Hcl	49	14
Amiodarone Hcl	Amiodarone Hcl	46	14
Ceftriaxone	Ceftriaxone Sodium	46	28
Doxycycline Hyclate	Doxycycline Hyclate	46	26
Isosorbide Mononitrate Er	Isosorbide Mononitrate	46	suppressed
Alendronate Sodium	Alendronate Sodium	43	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	43	15
Hydroxyzine Hcl	Hydroxyzine Hcl	42	12
Oxybutynin Chloride	Oxybutynin Chloride	42	suppressed
Glipizide	Glipizide	41	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	41	suppressed
Lorazepam	Lorazepam	41	13
Memantine Hcl Er	Memantine Hcl	41	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	40	11
Digoxin	Digoxin	40	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	40	20
Esomeprazole Magnesium	Esomeprazole Magnesium	39	suppressed
Folic Acid	Folic Acid	39	suppressed
Ondansetron Hcl	Ondansetron Hcl	39	26
Azithromycin	Azithromycin	38	26
Sodium Chloride	0.9 % Sodium Chloride	37	25
Allopurinol	Allopurinol	36	suppressed
Duloxetine Hcl	Duloxetine Hcl	36	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	35	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	34	suppressed
Midodrine Hcl	Midodrine Hcl	32	suppressed
Benztropine Mesylate	Benztropine Mesylate	31	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	31	suppressed
Oxcarbazepine	Oxcarbazepine	31	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	30	14
Farxiga	Dapagliflozin Propanediol	30	suppressed
Nystatin	Nystatin	30	20
Levemir Flexpen	Insulin Detemir	29	suppressed
Ranolazine Er	Ranolazine	29	suppressed
Xifaxan	Rifaximin	29	suppressed
Atenolol	Atenolol	28	suppressed
Enulose	Lactulose	28	suppressed
Pravastatin Sodium	Pravastatin Sodium	28	suppressed
Budesonide	Budesonide	27	suppressed
Permethrin	Permethrin	27	21
Anastrozole	Anastrozole	26	suppressed
Scopolamine	Scopolamine	26	suppressed
Sodium Chloride	Sodium Chloride 0.45 %	26	21
Alprazolam	Alprazolam	25	suppressed
Levemir	Insulin Detemir	25	suppressed
Naproxen	Naproxen	25	suppressed
Sotalol	Sotalol Hcl	25	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	25	suppressed
Benazepril Hcl	Benazepril Hcl	24	suppressed
Methocarbamol	Methocarbamol	24	suppressed
Santyl	Collagenase Clostridium Hist.	24	14
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	23	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	23	16
Promethazine Hcl	Promethazine Hcl	23	suppressed
Bupropion Xl	Bupropion Hcl	22	suppressed
Doxepin Hcl	Doxepin Hcl	22	suppressed
Lamotrigine	Lamotrigine	22	suppressed
Lidocaine Hcl	Lidocaine Hcl/Pf	22	13
Nuplazid	Pimavanserin Tartrate	22	suppressed
Rasagiline Mesylate	Rasagiline Mesylate	22	suppressed
Tizanidine Hcl	Tizanidine Hcl	22	suppressed
Celecoxib	Celecoxib	21	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	21	suppressed
Cephalexin	Cephalexin	20	14
Diclofenac Sodium	Diclofenac Sodium	20	13
Insulin Lispro Kwikpen U-100	Insulin Lispro	20	suppressed
Rivastigmine	Rivastigmine Tartrate	20	suppressed
Clonazepam	Clonazepam	19	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	19	suppressed
Methenamine Hippurate	Methenamine Hippurate	19	suppressed
Primidone	Primidone	19	suppressed
Roflumilast	Roflumilast	19	suppressed
Tradjenta	Linagliptin	19	suppressed
Albuterol Sulfate	Albuterol Sulfate	18	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	18	suppressed
Diltiazem Hcl	Diltiazem Hcl	17	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	17	suppressed
Labetalol Hcl	Labetalol Hcl	17	suppressed
Lidocaine Hcl	Lidocaine Hcl	17	13
Nitroglycerin Patch	Nitroglycerin	17	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	17	suppressed
Spiriva Respimat	Tiotropium Bromide	17	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	17	12
Cefdinir	Cefdinir	16	12
Cholestyramine	Cholestyramine (With Sugar)	16	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	16	suppressed
Fluconazole	Fluconazole	16	11
Metformin Hcl Er	Metformin Hcl	16	suppressed
Nystop	Nystatin	16	suppressed
Onglyza	Saxagliptin Hcl	16	suppressed
Bupropion Hcl	Bupropion Hcl	15	suppressed
Clonidine	Clonidine	15	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	15	suppressed
Isosorbide Mononitrate	Isosorbide Mononitrate	15	suppressed
Lacosamide	Lacosamide	15	suppressed
Mirabegron Er	Mirabegron	15	suppressed
Paliperidone Er	Paliperidone	15	suppressed
Arformoterol Tartrate	Arformoterol Tartrate	14	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	14	suppressed
Methimazole	Methimazole	14	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	13	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	13	suppressed
Amantadine	Amantadine Hcl	12	suppressed
Amoxicillin	Amoxicillin	12	suppressed
Glatopa	Glatiramer Acetate	12	suppressed
Haloperidol	Haloperidol	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
Lurasidone Hcl	Lurasidone Hcl	12	suppressed
Multaq	Dronedarone Hcl	12	suppressed
Phenytoin	Phenytoin	12	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	12	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	11	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	11	11
Enalapril Maleate	Enalapril Maleate	11	suppressed
Fenofibrate	Fenofibrate	11	suppressed
Fluvoxamine Maleate	Fluvoxamine Maleate	11	suppressed
Glipizide Er	Glipizide	11	suppressed
Lidocaine	Lidocaine	11	suppressed
Lubiprostone	Lubiprostone	11	suppressed
Nebivolol Hcl	Nebivolol Hcl	11	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	11	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	11	suppressed
Simbrinza	Brinzolamide/Brimonidine Tart	11	suppressed
Trospium Chloride	Trospium Chloride	11	suppressed
Verapamil Hcl	Verapamil 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