Healthcare provider profile · identity verified

Robert J Chalfin, MD

Internal Medicine · WARMINSTER, PA · NPI 1841295318

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	982	217
Levothyroxine Sodium	Levothyroxine Sodium	803	145
Eliquis	Apixaban	672	71
Furosemide	Furosemide	619	116
Losartan Potassium	Losartan Potassium	602	132
Amlodipine Besylate	Amlodipine Besylate	591	137
Metoprolol Succinate	Metoprolol Succinate	428	91
Gabapentin	Gabapentin	427	83
Escitalopram Oxalate	Escitalopram Oxalate	404	76
Lisinopril	Lisinopril	275	67
Metoprolol Tartrate	Metoprolol Tartrate	267	51
Pantoprazole Sodium	Pantoprazole Sodium	257	59
Warfarin Sodium	Warfarin Sodium	252	20
Omeprazole	Omeprazole	234	66
Sertraline Hcl	Sertraline Hcl	231	47
Trazodone Hcl	Trazodone Hcl	228	43
Tamsulosin Hcl	Tamsulosin Hcl	227	45
Famotidine	Famotidine	226	52
Rosuvastatin Calcium	Rosuvastatin Calcium	216	71
Mirtazapine	Mirtazapine	208	45
Simvastatin	Simvastatin	190	47
Metformin Hcl	Metformin Hcl	188	53
Potassium Chloride	Potassium Chloride	165	34
Xarelto	Rivaroxaban	158	16
Hydrochlorothiazide	Hydrochlorothiazide	156	51
Atenolol	Atenolol	155	23
Tramadol Hcl	Tramadol Hcl	143	32
Buspirone Hcl	Buspirone Hcl	141	25
Myrbetriq	Mirabegron	139	17
Duloxetine Hcl	Duloxetine Hcl	138	32
Prednisone	Prednisone	138	42
Carbidopa-Levodopa	Carbidopa/Levodopa	129	17
Clopidogrel	Clopidogrel Bisulfate	119	25
Montelukast Sodium	Montelukast Sodium	111	23
Donepezil Hcl	Donepezil Hcl	108	14
Hydralazine Hcl	Hydralazine Hcl	108	23
Carvedilol	Carvedilol	104	22
Jardiance	Empagliflozin	98	suppressed
Pravastatin Sodium	Pravastatin Sodium	94	23
Quetiapine Fumarate	Quetiapine Fumarate	94	18
Alprazolam	Alprazolam	92	25
Ezetimibe	Ezetimibe	90	19
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	89	25
Allopurinol	Allopurinol	88	18
Digoxin	Digoxin	87	13
Lorazepam	Lorazepam	86	41
Citalopram Hbr	Citalopram Hydrobromide	84	19
Fluticasone Propionate	Fluticasone Propionate	84	29
Glipizide Er	Glipizide	84	19
Nystatin	Nystatin	84	37
Diclofenac Sodium	Diclofenac Sodium	81	20
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	80	24
Finasteride	Finasteride	77	17
Breo Ellipta	Fluticasone/Vilanterol	73	14
Latanoprost	Latanoprost	73	15
Bumetanide	Bumetanide	71	14
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	71	11
Ozempic	Semaglutide	66	12
Synthroid	Levothyroxine Sodium	66	19
Glipizide	Glipizide	64	14
Venlafaxine Hcl Er	Venlafaxine Hcl	62	12
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	61	suppressed
Valsartan	Valsartan	61	16
Alendronate Sodium	Alendronate Sodium	59	17
Cephalexin	Cephalexin	59	35
Fluoxetine Hcl	Fluoxetine Hcl	59	11
Ipratropium Bromide	Ipratropium Bromide	59	18
Januvia	Sitagliptin Phosphate	59	suppressed
Primidone	Primidone	58	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	52	26
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	52	14
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	52	11
Entresto	Sacubitril/Valsartan	51	suppressed
Lovastatin	Lovastatin	51	suppressed
Nifedipine Er	Nifedipine	50	suppressed
Methylprednisolone	Methylprednisolone	48	44
Benazepril Hcl	Benazepril Hcl	47	11
Tizanidine Hcl	Tizanidine Hcl	46	12
Levemir Flexpen	Insulin Detemir	44	suppressed
Midodrine Hcl	Midodrine Hcl	44	suppressed
Ondansetron Hcl	Ondansetron Hcl	44	19
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	43	15
Raloxifene Hcl	Raloxifene Hcl	43	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	42	suppressed
Clonazepam	Clonazepam	41	suppressed
Loperamide	Loperamide Hcl	41	18
Meloxicam	Meloxicam	41	22
Verapamil Er	Verapamil Hcl	41	suppressed
Nuplazid	Pimavanserin Tartrate	40	suppressed
Spironolactone	Spironolactone	40	suppressed
Azelastine Hcl	Azelastine Hcl	38	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	38	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	37	suppressed
Divalproex Sodium	Divalproex Sodium	37	suppressed
Amiodarone Hcl	Amiodarone Hcl	36	suppressed
Memantine Hcl	Memantine Hcl	36	suppressed
Torsemide	Torsemide	36	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	36	24
Levetiracetam	Levetiracetam	35	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	35	suppressed
Morphine Sulfate	Morphine Sulfate	34	16
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	34	suppressed
Baclofen	Baclofen	32	suppressed
Propranolol Hcl	Propranolol Hcl	32	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	31	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	31	suppressed
Ropinirole Hcl	Ropinirole Hcl	31	suppressed
Gemtesa	Vibegron	30	suppressed
Oseltamivir Phosphate	Oseltamivir Phosphate	30	24
Propranolol Hcl Er	Propranolol Hcl	30	suppressed
Erythromycin	Erythromycin Base	28	suppressed
Estradiol	Estradiol	28	suppressed
Trulicity	Dulaglutide	28	suppressed
Celecoxib	Celecoxib	27	suppressed
Metolazone	Metolazone	27	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	27	suppressed
Azithromycin	Azithromycin	26	21
Paxlovid	Nirmatrelvir/Ritonavir	26	26
Ciprofloxacin Hcl	Ciprofloxacin Hcl	25	17
Metformin Hcl Er	Metformin Hcl	25	suppressed
Amoxicillin	Amoxicillin	24	21
Carbidopa-Levodopa Er	Carbidopa/Levodopa	24	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	24	suppressed
Ethacrynic Acid	Ethacrynic Acid	24	suppressed
Ropinirole Er	Ropinirole Hcl	24	suppressed
Simbrinza	Brinzolamide/Brimonidine Tart	24	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	24	suppressed
Lidocaine	Lidocaine	23	suppressed
Memantine Hcl Er	Memantine Hcl	23	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	23	suppressed
Acetic Acid	Acetic Acid	22	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	22	suppressed
Labetalol Hcl	Labetalol Hcl	22	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	22	15
Bupropion Xl	Bupropion Hcl	21	suppressed
Clobetasol Propionate	Clobetasol Propionate	21	11
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	21	suppressed
Methotrexate	Methotrexate Sodium	21	suppressed
Riluzole	Riluzole	21	suppressed
Risperidone	Risperidone	21	suppressed
Spiriva Handihaler	Tiotropium Bromide	21	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	20	suppressed
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	20	suppressed
Glipizide-Metformin	Glipizide/Metformin Hcl	20	suppressed
Mounjaro	Tirzepatide	20	suppressed
Ramipril	Ramipril	20	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	19	suppressed
Chlorpromazine Hcl	Chlorpromazine Hcl	19	suppressed
Fenofibrate	Fenofibrate	19	suppressed
Ketoconazole	Ketoconazole	19	11
Bupropion Hcl Sr	Bupropion Hcl	18	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	18	suppressed
Amlodipine-Atorvastatin	Amlodipine/Atorvastatin	17	suppressed
Bethanechol Chloride	Bethanechol Chloride	17	suppressed
Candesartan Cilexetil	Candesartan Cilexetil	17	suppressed
Flecainide Acetate	Flecainide Acetate	17	suppressed
Folic Acid	Folic Acid	17	suppressed
Pregabalin	Pregabalin	17	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	16	15
Chlorthalidone	Chlorthalidone	16	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	16	suppressed
Desloratadine	Desloratadine	16	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	16	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	16	suppressed
Glimepiride	Glimepiride	16	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	16	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	16	suppressed
Procto-Med Hc	Hydrocortisone	16	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	16	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	15	14
Aripiprazole	Aripiprazole	15	suppressed
Cefuroxime	Cefuroxime Axetil	15	suppressed
Oxycodone Hcl	Oxycodone Hcl	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Ranolazine Er	Ranolazine	15	suppressed
Rivastigmine	Rivastigmine Tartrate	15	suppressed
Timolol Maleate	Timolol Maleate	15	suppressed
Tradjenta	Linagliptin	15	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	15	suppressed
Ultra-Fine Nano Pen Needle	Pen Needle, Diabetic	15	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	14	suppressed
Diltiazem 24hr Er (Xr)	Diltiazem Hcl	14	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	14	11
Insulin Lispro	Insulin Lispro	14	suppressed
Klor-Con 10	Potassium Chloride	14	suppressed
Levofloxacin	Levofloxacin	14	11
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	13	suppressed
Benazepril-Hydrochlorothiazide	Benazepril/Hydrochlorothiazide	13	suppressed
Clonidine Hcl	Clonidine Hcl	13	suppressed
Entacapone	Entacapone	13	suppressed
Icosapent Ethyl	Icosapent Ethyl	13	suppressed
Mirabegron Er	Mirabegron	13	suppressed
Nadolol	Nadolol	13	suppressed
Rasagiline Mesylate	Rasagiline Mesylate	13	suppressed
Ammonium Lactate	Ammonium Lactate	12	suppressed
Betoptic S	Betaxolol Hcl	12	suppressed
Cyclophosphamide	Cyclophosphamide	12	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	12	suppressed
Enalapril Maleate	Enalapril Maleate	12	suppressed
Hydrocortisone	Hydrocortisone	12	suppressed
Linzess	Linaclotide	12	suppressed
Olanzapine	Olanzapine	12	suppressed
Praluent Pen	Alirocumab	12	suppressed
Rivastigmine	Rivastigmine	12	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	12	suppressed
Trimethoprim	Trimethoprim	12	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Carbidopa-Levodopa-Entacapone	Carbidopa/Levodopa/Entacapone	11	suppressed
Cefdinir	Cefdinir	11	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	11	suppressed
Lansoprazole	Lansoprazole	11	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	11	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	11	suppressed
Rocklatan	Netarsudil Mesylat/Latanoprost	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