Healthcare provider profile · identity verified

Erin L Warren, MD

Internal Medicine · TROY, MI · NPI 1699122382

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	591	185
Amlodipine Besylate	Amlodipine Besylate	482	141
Levothyroxine Sodium	Levothyroxine Sodium	435	116
Losartan Potassium	Losartan Potassium	372	115
Lisinopril	Lisinopril	302	82
Rosuvastatin Calcium	Rosuvastatin Calcium	249	87
Omeprazole	Omeprazole	230	64
Simvastatin	Simvastatin	188	40
Carvedilol	Carvedilol	172	46
Eliquis	Apixaban	161	40
Metformin Hcl	Metformin Hcl	150	44
Metoprolol Succinate	Metoprolol Succinate	148	42
Pravastatin Sodium	Pravastatin Sodium	142	43
Tamsulosin Hcl	Tamsulosin Hcl	140	45
Metoprolol Tartrate	Metoprolol Tartrate	133	30
Pantoprazole Sodium	Pantoprazole Sodium	130	36
Jardiance	Empagliflozin	129	32
Trazodone Hcl	Trazodone Hcl	129	34
Gabapentin	Gabapentin	122	38
Sertraline Hcl	Sertraline Hcl	120	33
Escitalopram Oxalate	Escitalopram Oxalate	116	32
Famotidine	Famotidine	108	31
Duloxetine Hcl	Duloxetine Hcl	104	26
Hydrochlorothiazide	Hydrochlorothiazide	92	29
Albuterol Sulfate Hfa	Albuterol Sulfate	84	39
Meloxicam	Meloxicam	81	25
Montelukast Sodium	Montelukast Sodium	78	20
Fluticasone Propionate	Fluticasone Propionate	75	32
Furosemide	Furosemide	72	23
Metformin Hcl Er	Metformin Hcl	66	18
Alprazolam	Alprazolam	64	31
Alendronate Sodium	Alendronate Sodium	63	17
Raloxifene Hcl	Raloxifene Hcl	62	13
Potassium Chloride	Potassium Chloride	58	19
Ezetimibe	Ezetimibe	57	22
Ozempic	Semaglutide	57	11
Finasteride	Finasteride	53	13
Mirtazapine	Mirtazapine	53	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	52	19
Clopidogrel	Clopidogrel Bisulfate	51	19
Telmisartan	Telmisartan	51	11
Hydralazine Hcl	Hydralazine Hcl	50	15
Valacyclovir	Valacyclovir Hcl	50	21
Spironolactone	Spironolactone	46	14
Atenolol	Atenolol	43	14
Trulicity	Dulaglutide	43	suppressed
Synthroid	Levothyroxine Sodium	41	13
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	40	suppressed
Mounjaro	Tirzepatide	40	suppressed
Terazosin Hcl	Terazosin Hcl	40	suppressed
Allopurinol	Allopurinol	39	14
Citalopram Hbr	Citalopram Hydrobromide	39	suppressed
Bupropion Xl	Bupropion Hcl	35	13
Januvia	Sitagliptin Phosphate	35	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	34	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	34	12
Quetiapine Fumarate	Quetiapine Fumarate	33	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	32	suppressed
Buspirone Hcl	Buspirone Hcl	32	suppressed
Memantine Hcl	Memantine Hcl	32	suppressed
Bupropion Hcl Sr	Bupropion Hcl	31	suppressed
Solifenacin Succinate	Solifenacin Succinate	31	suppressed
Chlorthalidone	Chlorthalidone	30	suppressed
Farxiga	Dapagliflozin Propanediol	29	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	29	suppressed
Azelastine Hcl	Azelastine Hcl	28	15
Donepezil Hcl	Donepezil Hcl	28	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	28	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	28	suppressed
Clotrimazole	Clotrimazole	27	16
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	27	suppressed
Nifedipine Er	Nifedipine	27	suppressed
Primidone	Primidone	27	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	27	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	26	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	25	24
Clonazepam	Clonazepam	25	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	24	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	24	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	24	suppressed
Breo Ellipta	Fluticasone/Vilanterol	23	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	23	20
Paroxetine Hcl	Paroxetine Hcl	23	suppressed
Prednisone	Prednisone	23	21
Xarelto	Rivaroxaban	23	11
Celecoxib	Celecoxib	22	suppressed
Hydrocortisone	Hydrocortisone	22	13
Tramadol Hcl	Tramadol Hcl	22	suppressed
Lamotrigine	Lamotrigine	21	suppressed
Levetiracetam	Levetiracetam	21	suppressed
Lorazepam	Lorazepam	21	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	21	15
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	20	suppressed
Labetalol Hcl	Labetalol Hcl	20	suppressed
Midodrine Hcl	Midodrine Hcl	20	suppressed
Estradiol	Estradiol	19	suppressed
Amiodarone Hcl	Amiodarone Hcl	18	suppressed
Valsartan	Valsartan	18	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	17	suppressed
Repaglinide	Repaglinide	17	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	16	suppressed
Azithromycin	Azithromycin	15	15
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	15	suppressed
Diclofenac Sodium	Diclofenac Sodium	15	suppressed
Methylprednisolone	Methylprednisolone	15	15
Mupirocin	Mupirocin	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Ibuprofen	Ibuprofen	14	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Meclizine Hcl	Meclizine Hcl	14	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	14	14
Pitavastatin Calcium	Pitavastatin Calcium	14	suppressed
Divalproex Sodium	Divalproex Sodium	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Lactulose	Lactulose	13	suppressed
Myrbetriq	Mirabegron	13	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	13	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	13	suppressed
Baclofen	Baclofen	12	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	12	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	12	suppressed
Dutasteride	Dutasteride	12	suppressed
Ibandronate Sodium	Ibandronate Sodium	12	suppressed
Propranolol Hcl Er	Propranolol Hcl	12	suppressed
Temazepam	Temazepam	12	suppressed
Trospium Chloride Er	Trospium Chloride	12	suppressed
Warfarin Sodium	Warfarin Sodium	12	suppressed
Fluconazole	Fluconazole	11	suppressed
Ipratropium Bromide	Ipratropium Bromide	11	suppressed
Klor-Con M20	Potassium Chloride	11	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	11	suppressed
Ondansetron Odt	Ondansetron	11	suppressed
Rivastigmine	Rivastigmine	11	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	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

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