Healthcare provider profile · identity verified

Thomas G Field, MD

Family Medicine · BALDWIN, WI · NPI 1336105840

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
Furosemide	Furosemide	439	61
Levothyroxine Sodium	Levothyroxine Sodium	303	32
Warfarin Sodium	Warfarin Sodium	301	22
Atorvastatin Calcium	Atorvastatin Calcium	253	47
Sertraline Hcl	Sertraline Hcl	208	42
Gabapentin	Gabapentin	200	36
Omeprazole	Omeprazole	186	30
Amlodipine Besylate	Amlodipine Besylate	181	30
Metoprolol Succinate	Metoprolol Succinate	160	33
Eliquis	Apixaban	159	20
Tramadol Hcl	Tramadol Hcl	158	25
Potassium Chloride	Potassium Chloride	157	24
Lisinopril	Lisinopril	150	24
Mirtazapine	Mirtazapine	140	22
Metoprolol Tartrate	Metoprolol Tartrate	134	17
Quetiapine Fumarate	Quetiapine Fumarate	115	26
Metformin Hcl	Metformin Hcl	110	16
Tamsulosin Hcl	Tamsulosin Hcl	109	21
Pantoprazole Sodium	Pantoprazole Sodium	95	21
Escitalopram Oxalate	Escitalopram Oxalate	89	13
Duloxetine Hcl	Duloxetine Hcl	83	suppressed
Losartan Potassium	Losartan Potassium	82	17
Trazodone Hcl	Trazodone Hcl	81	15
Levetiracetam	Levetiracetam	79	12
Lorazepam	Lorazepam	75	18
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	64	11
Donepezil Hcl	Donepezil Hcl	61	suppressed
Allopurinol	Allopurinol	59	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	58	suppressed
Buspirone Hcl	Buspirone Hcl	57	suppressed
Memantine Hcl	Memantine Hcl	52	suppressed
Oxycodone Hcl	Oxycodone Hcl	51	19
Clopidogrel	Clopidogrel Bisulfate	47	13
Bumetanide	Bumetanide	46	suppressed
Propranolol Hcl Er	Propranolol Hcl	46	suppressed
Famotidine	Famotidine	45	suppressed
Finasteride	Finasteride	44	suppressed
Cephalexin	Cephalexin	43	23
Citalopram Hbr	Citalopram Hydrobromide	43	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	42	suppressed
Alendronate Sodium	Alendronate Sodium	41	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	41	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	41	suppressed
Clonazepam	Clonazepam	39	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	39	suppressed
Spironolactone	Spironolactone	38	suppressed
Olanzapine	Olanzapine	37	suppressed
Jardiance	Empagliflozin	36	suppressed
Budesonide	Budesonide	35	suppressed
Diclofenac Sodium	Diclofenac Sodium	35	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	35	suppressed
Tizanidine Hcl	Tizanidine Hcl	35	suppressed
Aripiprazole	Aripiprazole	34	suppressed
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	33	suppressed
Nystatin	Nystatin	33	20
Oxybutynin Chloride Er	Oxybutynin Chloride	31	suppressed
Ropinirole Hcl	Ropinirole Hcl	31	suppressed
Torsemide	Torsemide	31	suppressed
Carvedilol	Carvedilol	30	suppressed
Meloxicam	Meloxicam	30	suppressed
Digoxin	Digoxin	29	suppressed
Pregabalin	Pregabalin	29	suppressed
Humalog Kwikpen U-100	Insulin Lispro	27	suppressed
Metformin Hcl Er	Metformin Hcl	27	suppressed
Metolazone	Metolazone	27	suppressed
Midodrine Hcl	Midodrine Hcl	27	suppressed
Myrbetriq	Mirabegron	27	suppressed
Bupropion Xl	Bupropion Hcl	26	suppressed
Hydralazine Hcl	Hydralazine Hcl	26	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	26	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	24	suppressed
Bupropion Hcl Sr	Bupropion Hcl	24	suppressed
Morphine Sulfate Er	Morphine Sulfate	24	suppressed
Rivastigmine	Rivastigmine	24	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	23	14
Simvastatin	Simvastatin	23	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	23	14
Venlafaxine Hcl Er	Venlafaxine Hcl	23	suppressed
Breo Ellipta	Fluticasone/Vilanterol	22	suppressed
Creon	Lipase/Protease/Amylase	22	suppressed
Memantine Hcl Er	Memantine Hcl	22	suppressed
Prednisone	Prednisone	22	suppressed
Fluticasone Propionate	Fluticasone Propionate	21	suppressed
Humalog	Insulin Lispro	20	suppressed
Lacosamide	Lacosamide	20	suppressed
Lokelma	Sodium Zirconium Cyclosilicate	20	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	19	suppressed
Latanoprost	Latanoprost	19	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	19	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	18	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	16	16
Ezetimibe	Ezetimibe	16	suppressed
Glycopyrrolate	Glycopyrrolate	16	suppressed
Admelog Solostar	Insulin Lispro	15	suppressed
Amiodarone Hcl	Amiodarone Hcl	14	suppressed
Clotrimazole	Clotrimazole	14	suppressed
Januvia	Sitagliptin Phosphate	14	suppressed
Levocarnitine	Levocarnitine (With Sugar)	14	suppressed
Morphine Sulfate	Morphine Sulfate	14	13
Valproic Acid	Valproic Acid (As Sodium Salt)	14	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	13	suppressed
Lovastatin	Lovastatin	13	suppressed
Primidone	Primidone	13	suppressed
Baclofen	Baclofen	12	suppressed
Cholestyramine	Cholestyramine (With Sugar)	12	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	12	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	12	11
Levetiracetam Er	Levetiracetam	12	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	12	suppressed
Meclizine Hcl	Meclizine Hcl	12	suppressed
Methenamine Hippurate	Methenamine Hippurate	12	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	12	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	12	suppressed
Topiramate	Topiramate	12	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	12	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	12	suppressed
Zonisamide	Zonisamide	12	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	11	suppressed
Fluticasone-Vilanterol	Fluticasone/Vilanterol	11	suppressed
Montelukast Sodium	Montelukast Sodium	11	suppressed
Paroxetine Hcl	Paroxetine 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