Healthcare provider profile · identity verified

Surendra Marur, MD

Internal Medicine · BALTIMORE, MD · NPI 1679524847

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
Warfarin Sodium	Warfarin Sodium	475	170
Atorvastatin Calcium	Atorvastatin Calcium	219	63
Lisinopril	Lisinopril	126	37
Amlodipine Besylate	Amlodipine Besylate	106	28
Fluticasone Propionate	Fluticasone Propionate	86	43
Levothyroxine Sodium	Levothyroxine Sodium	67	17
Jantoven	Warfarin Sodium	64	24
Oxycodone Hcl	Oxycodone Hcl	61	suppressed
Enoxaparin Sodium	Enoxaparin Sodium	60	35
Losartan Potassium	Losartan Potassium	60	18
Metformin Hcl	Metformin Hcl	60	15
Montelukast Sodium	Montelukast Sodium	60	16
Gabapentin	Gabapentin	57	17
Metoprolol Succinate	Metoprolol Succinate	54	17
Duloxetine Hcl	Duloxetine Hcl	38	suppressed
Pregabalin	Pregabalin	37	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	37	14
Tamsulosin Hcl	Tamsulosin Hcl	37	suppressed
Tizanidine Hcl	Tizanidine Hcl	36	suppressed
Trazodone Hcl	Trazodone Hcl	36	suppressed
Pravastatin Sodium	Pravastatin Sodium	34	11
Escitalopram Oxalate	Escitalopram Oxalate	33	suppressed
Simvastatin	Simvastatin	32	11
Trulicity	Dulaglutide	31	suppressed
Alprazolam	Alprazolam	29	suppressed
Eliquis	Apixaban	29	suppressed
Prednisone	Prednisone	28	22
Ezetimibe	Ezetimibe	27	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	27	suppressed
Tramadol Hcl	Tramadol Hcl	27	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	26	16
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	26	12
Omeprazole	Omeprazole	26	suppressed
Pantoprazole Sodium	Pantoprazole Sodium	26	suppressed
Mirtazapine	Mirtazapine	25	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	23	suppressed
Ramipril	Ramipril	23	suppressed
Carvedilol	Carvedilol	21	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	21	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	21	suppressed
Ozempic	Semaglutide	21	suppressed
Atenolol	Atenolol	20	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	20	20
Famotidine	Famotidine	20	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	19	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	19	17
Nifedipine Er	Nifedipine	19	suppressed
Valacyclovir	Valacyclovir Hcl	19	suppressed
Clopidogrel	Clopidogrel Bisulfate	18	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	18	suppressed
Furosemide	Furosemide	18	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	18	suppressed
Propranolol Hcl	Propranolol Hcl	18	suppressed
Allopurinol	Allopurinol	17	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	17	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	17	suppressed
Arnuity Ellipta	Fluticasone Furoate	16	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	16	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	15	suppressed
Prochlorperazine Maleate	Prochlorperazine Maleate	15	suppressed
Verapamil Er	Verapamil Hcl	15	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Cimetidine	Cimetidine	14	suppressed
Ibuprofen	Ibuprofen	14	suppressed
Midodrine Hcl	Midodrine Hcl	14	suppressed
Ondansetron Odt	Ondansetron	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	13	11
Clonidine	Clonidine	13	suppressed
Hydralazine Hcl	Hydralazine Hcl	13	suppressed
Sildenafil Citrate	Sildenafil Citrate	13	suppressed
Spironolactone	Spironolactone	13	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	13	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	12	suppressed
Synthroid	Levothyroxine Sodium	12	suppressed
Adderall Xr	Dextroamphetamine/Amphetamine	11	suppressed
Atomoxetine Hcl	Atomoxetine Hcl	11	suppressed
Carvedilol Er	Carvedilol Phosphate	11	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	11	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Metformin Hcl Er	Metformin Hcl	11	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	11	11

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