Healthcare provider profile · identity verified

Mark G Strauss, MD

Internal Medicine · CORPUS CHRISTI, TX · NPI 1629053186

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	922	279
Levothyroxine Sodium	Levothyroxine Sodium	489	144
Pantoprazole Sodium	Pantoprazole Sodium	409	133
Valsartan	Valsartan	346	103
Amlodipine Besylate	Amlodipine Besylate	321	97
Losartan Potassium	Losartan Potassium	263	78
Azithromycin	Azithromycin	244	182
Ezetimibe	Ezetimibe	235	74
Methylprednisolone	Methylprednisolone	231	173
Alprazolam	Alprazolam	202	63
Estradiol	Estradiol	185	66
Rosuvastatin Calcium	Rosuvastatin Calcium	176	53
Nebivolol Hcl	Nebivolol Hcl	174	57
Escitalopram Oxalate	Escitalopram Oxalate	161	48
Alendronate Sodium	Alendronate Sodium	146	54
Zolpidem Tartrate	Zolpidem Tartrate	146	59
Hydrochlorothiazide	Hydrochlorothiazide	139	40
Metoprolol Succinate	Metoprolol Succinate	136	42
Simvastatin	Simvastatin	127	39
Metformin Hcl	Metformin Hcl	122	40
Tamsulosin Hcl	Tamsulosin Hcl	122	39
Omeprazole	Omeprazole	111	37
Atenolol	Atenolol	103	28
Furosemide	Furosemide	102	42
Doxycycline Hyclate	Doxycycline Hyclate	94	57
Ozempic	Semaglutide	85	19
Potassium Chloride	Potassium Chloride	81	30
Ciprofloxacin Hcl	Ciprofloxacin Hcl	80	73
Synthroid	Levothyroxine Sodium	80	26
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	76	21
Gabapentin	Gabapentin	73	22
Mounjaro	Tirzepatide	71	15
Montelukast Sodium	Montelukast Sodium	70	22
Allopurinol	Allopurinol	69	21
Xarelto	Rivaroxaban	69	17
Lisinopril	Lisinopril	66	23
Venlafaxine Hcl Er	Venlafaxine Hcl	64	22
Medroxyprogesterone Acetate	Medroxyprogesterone Acetate	63	20
Spironolactone	Spironolactone	62	23
Clopidogrel	Clopidogrel Bisulfate	61	22
Temazepam	Temazepam	57	13
Meloxicam	Meloxicam	55	16
Sertraline Hcl	Sertraline Hcl	55	18
Fluconazole	Fluconazole	52	33
Pioglitazone Hcl	Pioglitazone Hcl	50	18
Citalopram Hbr	Citalopram Hydrobromide	49	13
Fluticasone Propionate	Fluticasone Propionate	48	20
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	47	suppressed
Acyclovir	Acyclovir	44	22
Celecoxib	Celecoxib	44	17
Eliquis	Apixaban	43	17
Metoprolol Tartrate	Metoprolol Tartrate	43	13
Azelastine Hcl	Azelastine Hcl	42	12
Albuterol Sulfate Hfa	Albuterol Sulfate	41	17
Dexlansoprazole Dr	Dexlansoprazole	40	11
Pregabalin	Pregabalin	40	11
Januvia	Sitagliptin Phosphate	39	12
Tramadol Hcl	Tramadol Hcl	38	18
Cefdinir	Cefdinir	37	32
Esomeprazole Magnesium	Esomeprazole Magnesium	37	11
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	37	11
Trazodone Hcl	Trazodone Hcl	37	15
Azelastine-Fluticasone	Azelastine/Fluticasone	36	15
Testosterone Cypionate	Testosterone Cypionate	35	12
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	34	20
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	33	suppressed
Metformin Hcl Er	Metformin Hcl	33	13
Jardiance	Empagliflozin	31	12
Amitriptyline Hcl	Amitriptyline Hcl	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	26	21
Fluoxetine Hcl	Fluoxetine Hcl	26	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	26	suppressed
Carvedilol	Carvedilol	25	suppressed
Finasteride	Finasteride	24	suppressed
Ibuprofen	Ibuprofen	24	12
Methylphenidate Hcl	Methylphenidate Hcl	24	suppressed
Valacyclovir	Valacyclovir Hcl	24	12
Warfarin Sodium	Warfarin Sodium	24	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	22	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	22	suppressed
Diclofenac Sodium	Diclofenac Sodium	21	suppressed
Clonazepam	Clonazepam	20	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	19	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	19	suppressed
Lovastatin	Lovastatin	19	suppressed
Metaxalone	Metaxalone	19	11
Promethazine Hcl	Promethazine Hcl	19	suppressed
Tizanidine Hcl	Tizanidine Hcl	19	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	18	suppressed
Ezetimibe-Simvastatin	Ezetimibe/Simvastatin	18	suppressed
Fenofibric Acid	Fenofibric Acid (Choline)	18	suppressed
Glipizide	Glipizide	18	suppressed
Diazepam	Diazepam	17	suppressed
Eszopiclone	Eszopiclone	17	suppressed
Duloxetine Hcl	Duloxetine Hcl	16	suppressed
Famotidine	Famotidine	16	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	16	suppressed
Prolia	Denosumab	16	11
Symbicort	Budesonide/Formoterol Fumarate	16	suppressed
Tresiba Flextouch U-200	Insulin Degludec	16	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	15	suppressed
Fluocinonide	Fluocinonide	15	13
Ibandronate Sodium	Ibandronate Sodium	15	suppressed
Jantoven	Warfarin Sodium	15	suppressed
Baclofen	Baclofen	14	suppressed
Benazepril Hcl	Benazepril Hcl	14	suppressed
Dotti	Estradiol	14	suppressed
Ondansetron Odt	Ondansetron	14	suppressed
Prednisone	Prednisone	14	suppressed
Topiramate	Topiramate	14	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	13	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	13	suppressed
Donepezil Hcl	Donepezil Hcl	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	13	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	13	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	12	suppressed
Bupropion Xl	Bupropion Hcl	12	suppressed
Humulin N	Insulin Nph Human Isophane	12	suppressed
Latanoprost	Latanoprost	12	suppressed
Pravastatin Sodium	Pravastatin Sodium	12	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	12	suppressed
Spironolactone-Hctz	Spironolact/Hydrochlorothiazid	12	suppressed
Vascepa	Icosapent Ethyl	12	suppressed
Hydrocortisone	Hydrocortisone	11	suppressed
Levofloxacin	Levofloxacin	11	suppressed
Mometasone Furoate	Mometasone Furoate	11	suppressed
Pitavastatin Calcium	Pitavastatin Calcium	11	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	11	suppressed
Primidone	Primidone	11	suppressed
Serevent Diskus	Salmeterol Xinafoate	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