Healthcare provider profile · identity verified

Nathan C Gilling, D.O.

Family Practice · WALWORTH, WI · NPI 1477991602

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	585	158
Lisinopril	Lisinopril	492	128
Amlodipine Besylate	Amlodipine Besylate	424	112
Rosuvastatin Calcium	Rosuvastatin Calcium	406	102
Losartan Potassium	Losartan Potassium	333	95
Levothyroxine Sodium	Levothyroxine Sodium	292	72
Metformin Hcl Er	Metformin Hcl	282	83
Metoprolol Succinate	Metoprolol Succinate	229	67
Omeprazole	Omeprazole	224	60
Tamsulosin Hcl	Tamsulosin Hcl	221	63
Pantoprazole Sodium	Pantoprazole Sodium	198	57
Hydrochlorothiazide	Hydrochlorothiazide	192	56
Gabapentin	Gabapentin	164	41
Albuterol Sulfate Hfa	Albuterol Sulfate	146	48
Escitalopram Oxalate	Escitalopram Oxalate	146	36
Simvastatin	Simvastatin	144	38
Eliquis	Apixaban	133	27
Furosemide	Furosemide	119	35
Ozempic	Semaglutide	116	21
Mounjaro	Tirzepatide	115	19
Carvedilol	Carvedilol	105	26
Allopurinol	Allopurinol	104	26
Finasteride	Finasteride	102	26
Alprazolam	Alprazolam	91	22
Metformin Hcl	Metformin Hcl	91	25
Duloxetine Hcl	Duloxetine Hcl	84	23
Potassium Chloride	Potassium Chloride	82	25
Trazodone Hcl	Trazodone Hcl	81	29
Meloxicam	Meloxicam	71	24
Montelukast Sodium	Montelukast Sodium	71	18
Venlafaxine Hcl Er	Venlafaxine Hcl	68	15
Lorazepam	Lorazepam	65	14
Alendronate Sodium	Alendronate Sodium	62	18
Fluticasone Propionate	Fluticasone Propionate	61	28
Quetiapine Fumarate	Quetiapine Fumarate	61	16
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	60	17
Ropinirole Hcl	Ropinirole Hcl	60	16
Atenolol	Atenolol	59	16
Jardiance	Empagliflozin	55	15
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	54	15
Fluoxetine Hcl	Fluoxetine Hcl	52	14
Oxybutynin Chloride Er	Oxybutynin Chloride	52	11
Pravastatin Sodium	Pravastatin Sodium	52	14
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	50	13
Metoprolol Tartrate	Metoprolol Tartrate	50	18
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	49	15
Prednisone	Prednisone	48	33
Clopidogrel	Clopidogrel Bisulfate	47	14
Famotidine	Famotidine	47	14
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	47	11
Donepezil Hcl	Donepezil Hcl	46	suppressed
Glimepiride	Glimepiride	45	13
Zolpidem Tartrate	Zolpidem Tartrate	44	suppressed
Sertraline Hcl	Sertraline Hcl	43	13
Valsartan	Valsartan	42	suppressed
Estradiol	Estradiol	40	13
Baclofen	Baclofen	38	15
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	38	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	38	22
Pregabalin	Pregabalin	37	suppressed
Spironolactone	Spironolactone	37	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	36	12
Naproxen	Naproxen	36	suppressed
Tizanidine Hcl	Tizanidine Hcl	35	14
Amitriptyline Hcl	Amitriptyline Hcl	34	11
Enalapril Maleate	Enalapril Maleate	31	suppressed
Glipizide Er	Glipizide	31	11
Lovastatin	Lovastatin	31	suppressed
Breo Ellipta	Fluticasone/Vilanterol	30	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	30	11
Ezetimibe	Ezetimibe	29	suppressed
Bupropion Xl	Bupropion Hcl	28	suppressed
Xarelto	Rivaroxaban	28	suppressed
Topiramate	Topiramate	27	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	25	suppressed
Mirtazapine	Mirtazapine	25	suppressed
Chlorthalidone	Chlorthalidone	24	suppressed
Trulicity	Dulaglutide	24	suppressed
Farxiga	Dapagliflozin Propanediol	22	suppressed
Synthroid	Levothyroxine Sodium	22	suppressed
Cephalexin	Cephalexin	21	18
Ipratropium Bromide	Ipratropium Bromide	21	14
Levetiracetam	Levetiracetam	21	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	20	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	20	suppressed
Clonazepam	Clonazepam	19	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	19	suppressed
Lamotrigine	Lamotrigine	18	suppressed
Ondansetron Odt	Ondansetron	18	12
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	18	13
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	17	suppressed
Citalopram Hbr	Citalopram Hydrobromide	17	suppressed
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Meclizine Hcl	Meclizine Hcl	17	suppressed
Azelastine Hcl	Azelastine Hcl	16	suppressed
Benazepril Hcl	Benazepril Hcl	16	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	16	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	16	suppressed
Linzess	Linaclotide	16	suppressed
Diazepam	Diazepam	15	suppressed
Nystatin	Nystatin	15	14
Propranolol Hcl Er	Propranolol Hcl	15	suppressed
Ramipril	Ramipril	15	suppressed
Sucralfate	Sucralfate	15	suppressed
Victoza 3-Pak	Liraglutide	15	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	14	suppressed
Acyclovir	Acyclovir	14	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	14	suppressed
Clonidine Hcl	Clonidine Hcl	14	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	14	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	14	suppressed
Januvia	Sitagliptin Phosphate	14	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	14	suppressed
Amoxicillin	Amoxicillin	13	suppressed
Azithromycin	Azithromycin	13	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Belsomra	Suvorexant	13	suppressed
Entresto	Sacubitril/Valsartan	13	suppressed
Hydralazine Hcl	Hydralazine Hcl	13	suppressed
Labetalol Hcl	Labetalol Hcl	13	suppressed
Lithium Carbonate Er	Lithium Carbonate	13	suppressed
Ondansetron Hcl	Ondansetron Hcl	13	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	13	suppressed
Amiodarone Hcl	Amiodarone Hcl	12	suppressed
Diltiazem 12hr Er	Diltiazem Hcl	12	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	12	suppressed
Humulin R U-500 Kwikpen	Insulin Regular, Human	12	suppressed
Tramadol Hcl	Tramadol Hcl	12	suppressed
Varenicline Tartrate	Varenicline Tartrate	12	suppressed
Chlordiazepoxide Hcl	Chlordiazepoxide Hcl	11	suppressed
Colchicine	Colchicine	11	suppressed
Glipizide	Glipizide	11	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	11	suppressed
Solifenacin Succinate	Solifenacin Succinate	11	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	11	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	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