Healthcare provider profile · identity verified

Rob Michael Tschauner, MD

Family Practice · CORPUS CHRISTI, TX · NPI 1427033067

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	656	187
Levothyroxine Sodium	Levothyroxine Sodium	347	88
Lisinopril	Lisinopril	285	85
Amlodipine Besylate	Amlodipine Besylate	263	70
Diclofenac Sodium	Diclofenac Sodium	215	55
Losartan Potassium	Losartan Potassium	181	58
Pantoprazole Sodium	Pantoprazole Sodium	160	40
Simvastatin	Simvastatin	159	41
Metformin Hcl	Metformin Hcl	156	49
Gabapentin	Gabapentin	133	40
Omeprazole	Omeprazole	125	31
Glipizide	Glipizide	119	37
Metoprolol Succinate	Metoprolol Succinate	108	29
Trazodone Hcl	Trazodone Hcl	107	28
Duloxetine Hcl	Duloxetine Hcl	100	24
Clopidogrel	Clopidogrel Bisulfate	96	30
Escitalopram Oxalate	Escitalopram Oxalate	94	34
Furosemide	Furosemide	94	34
Alendronate Sodium	Alendronate Sodium	93	23
Hydrochlorothiazide	Hydrochlorothiazide	90	27
Rosuvastatin Calcium	Rosuvastatin Calcium	90	26
Famotidine	Famotidine	89	26
Azithromycin	Azithromycin	87	66
Symbicort	Budesonide/Formoterol Fumarate	84	19
Tizanidine Hcl	Tizanidine Hcl	83	34
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	80	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	78	21
Tamsulosin Hcl	Tamsulosin Hcl	76	23
Mirtazapine	Mirtazapine	70	17
Albuterol Sulfate Hfa	Albuterol Sulfate	69	31
Pravastatin Sodium	Pravastatin Sodium	68	16
Sertraline Hcl	Sertraline Hcl	64	19
Alprazolam	Alprazolam	61	suppressed
Montelukast Sodium	Montelukast Sodium	60	19
Doxycycline Hyclate	Doxycycline Hyclate	58	50
Methylprednisolone	Methylprednisolone	57	50
Potassium Chloride	Potassium Chloride	56	16
Donepezil Hcl	Donepezil Hcl	54	18
Metoprolol Tartrate	Metoprolol Tartrate	54	16
Tramadol Hcl	Tramadol Hcl	51	24
Mounjaro	Tirzepatide	45	suppressed
Jardiance	Empagliflozin	43	suppressed
Telmisartan	Telmisartan	43	11
Ciprofloxacin Hcl	Ciprofloxacin Hcl	41	32
Irbesartan	Irbesartan	41	11
Nystatin	Nystatin	41	18
Buspirone Hcl	Buspirone Hcl	39	suppressed
Metformin Hcl Er	Metformin Hcl	39	15
Benazepril Hcl	Benazepril Hcl	38	suppressed
Meloxicam	Meloxicam	38	12
Triamcinolone Acetonide	Triamcinolone Acetonide	38	11
Eliquis	Apixaban	37	13
Citalopram Hbr	Citalopram Hydrobromide	36	suppressed
Synthroid	Levothyroxine Sodium	35	suppressed
Farxiga	Dapagliflozin Propanediol	34	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	34	14
Allopurinol	Allopurinol	31	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	31	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	29	11
Ibuprofen	Ibuprofen	29	suppressed
Ropinirole Hcl	Ropinirole Hcl	29	suppressed
Solifenacin Succinate	Solifenacin Succinate	29	11
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	28	suppressed
Memantine Hcl	Memantine Hcl	28	suppressed
Celecoxib	Celecoxib	27	suppressed
Finasteride	Finasteride	27	suppressed
Fluticasone Propionate	Fluticasone Propionate	26	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	25	suppressed
Pregabalin	Pregabalin	25	suppressed
Glipizide-Metformin	Glipizide/Metformin Hcl	24	suppressed
Nifedipine Er	Nifedipine	24	suppressed
Hydralazine Hcl	Hydralazine Hcl	22	suppressed
Ondansetron Odt	Ondansetron	22	11
Paxlovid	Nirmatrelvir/Ritonavir	22	22
Valsartan	Valsartan	22	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	21	suppressed
Bupropion Xl	Bupropion Hcl	21	suppressed
Clonazepam	Clonazepam	21	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	21	suppressed
Clonidine Hcl	Clonidine Hcl	20	suppressed
Lovastatin	Lovastatin	20	suppressed
Ondansetron Hcl	Ondansetron Hcl	20	suppressed
Amoxicillin	Amoxicillin	19	16
Doxazosin Mesylate	Doxazosin Mesylate	19	suppressed
Mupirocin	Mupirocin	19	suppressed
Spironolactone	Spironolactone	19	suppressed
Hydrocortisone	Hydrocortisone	18	suppressed
Mometasone Furoate	Mometasone Furoate	17	12
Oxybutynin Chloride Er	Oxybutynin Chloride	17	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	17	suppressed
Enalapril Maleate	Enalapril Maleate	16	suppressed
Myrbetriq	Mirabegron	16	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	16	13
Cephalexin	Cephalexin	15	13
Fluoxetine Hcl	Fluoxetine Hcl	15	suppressed
Labetalol Hcl	Labetalol Hcl	15	suppressed
Ramipril	Ramipril	15	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	14
Diazepam	Diazepam	14	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	14	suppressed
Glimepiride	Glimepiride	14	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	14	suppressed
Primidone	Primidone	14	suppressed
Trulicity	Dulaglutide	14	suppressed
Atenolol	Atenolol	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	13	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	13	suppressed
Naproxen	Naproxen	13	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Tradjenta	Linagliptin	13	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	13	suppressed
Chlorthalidone	Chlorthalidone	12	suppressed
Ciclopirox	Ciclopirox	12	suppressed
Janumet Xr	Sitagliptin Phos/Metformin Hcl	12	suppressed
Januvia	Sitagliptin Phosphate	12	suppressed
Novolin 70-30 Flexpen	Insulin Nph Hum/Reg Insulin Hm	12	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	11	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	11	suppressed
Euthyrox	Levothyroxine Sodium	11	suppressed
Folic Acid	Folic Acid	11	suppressed
Lorazepam	Lorazepam	11	suppressed
Raloxifene Hcl	Raloxifene 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