Healthcare provider profile · identity verified

Joseph A Karas, DO

Family Practice · LAKE ZURICH, IL · NPI 1649629643

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	438	135
Rosuvastatin Calcium	Rosuvastatin Calcium	190	67
Losartan Potassium	Losartan Potassium	167	48
Lisinopril	Lisinopril	160	47
Levothyroxine Sodium	Levothyroxine Sodium	152	40
Metoprolol Succinate	Metoprolol Succinate	142	49
Amlodipine Besylate	Amlodipine Besylate	123	41
Tamsulosin Hcl	Tamsulosin Hcl	103	33
Trazodone Hcl	Trazodone Hcl	96	30
Hydrochlorothiazide	Hydrochlorothiazide	84	28
Sertraline Hcl	Sertraline Hcl	84	23
Pantoprazole Sodium	Pantoprazole Sodium	81	28
Metformin Hcl Er	Metformin Hcl	79	22
Omeprazole	Omeprazole	68	21
Albuterol Sulfate Hfa	Albuterol Sulfate	64	21
Metformin Hcl	Metformin Hcl	61	19
Pravastatin Sodium	Pravastatin Sodium	60	14
Escitalopram Oxalate	Escitalopram Oxalate	53	16
Montelukast Sodium	Montelukast Sodium	53	14
Glimepiride	Glimepiride	51	13
Alendronate Sodium	Alendronate Sodium	46	15
Furosemide	Furosemide	46	17
Gabapentin	Gabapentin	44	21
Simvastatin	Simvastatin	44	13
Duloxetine Hcl	Duloxetine Hcl	42	15
Jardiance	Empagliflozin	40	11
Metoprolol Tartrate	Metoprolol Tartrate	40	11
Alprazolam	Alprazolam	39	14
Atenolol	Atenolol	37	11
Fluticasone Propionate	Fluticasone Propionate	37	19
Celecoxib	Celecoxib	36	11
Meclizine Hcl	Meclizine Hcl	36	suppressed
Azelastine Hcl	Azelastine Hcl	35	19
Ezetimibe	Ezetimibe	35	12
Allopurinol	Allopurinol	31	11
Potassium Chloride	Potassium Chloride	31	suppressed
Clopidogrel	Clopidogrel Bisulfate	29	suppressed
Irbesartan	Irbesartan	29	suppressed
Ozempic	Semaglutide	29	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	28	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	28	suppressed
Bupropion Xl	Bupropion Hcl	27	suppressed
Meloxicam	Meloxicam	27	14
Synthroid	Levothyroxine Sodium	27	suppressed
Benazepril Hcl	Benazepril Hcl	26	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	25	suppressed
Methylprednisolone	Methylprednisolone	25	22
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	24	suppressed
Clonazepam	Clonazepam	23	suppressed
Eliquis	Apixaban	23	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	22	suppressed
Tramadol Hcl	Tramadol Hcl	21	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	21	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	20	17
Citalopram Hbr	Citalopram Hydrobromide	20	suppressed
Famotidine	Famotidine	20	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	20	suppressed
Tizanidine Hcl	Tizanidine Hcl	20	18
Wixela Inhub	Fluticasone Propion/Salmeterol	20	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	19	suppressed
Warfarin Sodium	Warfarin Sodium	18	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Azithromycin	Azithromycin	15	14
Prednisone	Prednisone	15	suppressed
Ramipril	Ramipril	15	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	15	suppressed
Paroxetine Hcl	Paroxetine Hcl	14	suppressed
Carvedilol	Carvedilol	13	suppressed
Ketoconazole	Ketoconazole	13	suppressed
Levalbuterol Tartrate Hfa	Levalbuterol Tartrate	13	suppressed
Lorazepam	Lorazepam	13	suppressed
Prempro	Estrogen,con/M-Progest Acet	13	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	13	11
Valacyclovir	Valacyclovir Hcl	13	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	12	suppressed
Glipizide Er	Glipizide	12	suppressed
Loperamide	Loperamide Hcl	12	suppressed
Prazosin Hcl	Prazosin Hcl	12	suppressed
Topiramate	Topiramate	12	suppressed
Trulicity	Dulaglutide	12	suppressed
Pregabalin	Pregabalin	11	suppressed
Propranolol Hcl	Propranolol Hcl	11	suppressed
Risperidone	Risperidone	11	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	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