Healthcare provider profile · identity verified

Rolf G Hallberg, MD

Family Practice · APPLETON, WI · NPI 1386936151

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium26369
LisinoprilLisinopril18961
Amlodipine BesylateAmlodipine Besylate17049
SimvastatinSimvastatin15838
Losartan PotassiumLosartan Potassium13842
Levothyroxine SodiumLevothyroxine Sodium13335
GabapentinGabapentin12226
Metoprolol SuccinateMetoprolol Succinate11638
OmeprazoleOmeprazole9930
Citalopram HbrCitalopram Hydrobromide7426
Pantoprazole SodiumPantoprazole Sodium7018
FurosemideFurosemide6823
Metformin Hcl ErMetformin Hcl6816
Tramadol HclTramadol Hcl6715
Oxycodone HclOxycodone Hcl65suppressed
Breo ElliptaFluticasone/Vilanterol6411
Rosuvastatin CalciumRosuvastatin Calcium6417
Metoprolol TartrateMetoprolol Tartrate6015
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5911
MeloxicamMeloxicam55suppressed
OzempicSemaglutide51suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4919
Fluticasone PropionateFluticasone Propionate4614
Glipizide ErGlipizide4412
Montelukast SodiumMontelukast Sodium4312
HydrochlorothiazideHydrochlorothiazide3913
Metformin HclMetformin Hcl3511
NystatinNystatin35suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter35suppressed
PrednisonePrednisone3417
Tamsulosin HclTamsulosin Hcl3411
Bupropion XlBupropion Hcl33suppressed
Potassium ChloridePotassium Chloride32suppressed
CarvedilolCarvedilol31suppressed
Duloxetine HclDuloxetine Hcl29suppressed
FamotidineFamotidine29suppressed
AtenololAtenolol27suppressed
Sertraline HclSertraline Hcl27suppressed
Fluoxetine HclFluoxetine Hcl25suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr23suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl23suppressed
Warfarin SodiumWarfarin Sodium23suppressed
ChlorthalidoneChlorthalidone22suppressed
ClopidogrelClopidogrel Bisulfate22suppressed
Trazodone HclTrazodone Hcl22suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
MethocarbamolMethocarbamol21suppressed
NaproxenNaproxen21suppressed
Venlafaxine Hcl ErVenlafaxine Hcl21suppressed
Ventolin HfaAlbuterol Sulfate21suppressed
BaclofenBaclofen20suppressed
Alendronate SodiumAlendronate Sodium19suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide19suppressed
MirtazapineMirtazapine19suppressed
ClonazepamClonazepam18suppressed
EliquisApixaban18suppressed
FinasterideFinasteride18suppressed
AllopurinolAllopurinol16suppressed
AlprazolamAlprazolam16suppressed
Incruse ElliptaUmeclidinium Bromide16suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide16suppressed
Ondansetron OdtOndansetron16suppressed
Clonidine HclClonidine Hcl15suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl15suppressed
Hydralazine HclHydralazine Hcl15suppressed
PregabalinPregabalin15suppressed
RizatriptanRizatriptan Benzoate15suppressed
XareltoRivaroxaban15suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog14suppressed
Tizanidine HclTizanidine Hcl14suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine13suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen13suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl13suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine12suppressed
DuleraMometasone/Formoterol12suppressed
Escitalopram OxalateEscitalopram Oxalate12suppressed
EstradiolEstradiol12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Oxybutynin ChlorideOxybutynin Chloride12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Buspirone HclBuspirone Hcl11suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
GlipizideGlipizide11suppressed
Ipratropium BromideIpratropium Bromide11suppressed
Methylphenidate HclMethylphenidate Hcl11suppressed
Nifedipine ErNifedipine11suppressed
Pravastatin SodiumPravastatin Sodium11suppressed
Zolpidem TartrateZolpidem Tartrate11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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