Healthcare provider profile · identity verified

Jonathan Vanderslik, M.D.

Internal Medicine · NORTH MUSKEGON, MI · NPI 1477815850

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 Calcium535159
Rosuvastatin CalciumRosuvastatin Calcium381111
LisinoprilLisinopril353107
Amlodipine BesylateAmlodipine Besylate23364
Levothyroxine SodiumLevothyroxine Sodium20251
Metoprolol SuccinateMetoprolol Succinate18861
OmeprazoleOmeprazole17357
Losartan PotassiumLosartan Potassium16053
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen15937
Metformin Hcl ErMetformin Hcl14041
Tamsulosin HclTamsulosin Hcl13648
Sertraline HclSertraline Hcl11738
FamotidineFamotidine11339
HydrochlorothiazideHydrochlorothiazide11334
EliquisApixaban10829
GabapentinGabapentin10026
Fluticasone PropionateFluticasone Propionate8735
FurosemideFurosemide8730
Metformin HclMetformin Hcl8626
TrulicityDulaglutide7719
CarvedilolCarvedilol7623
Pantoprazole SodiumPantoprazole Sodium7533
AllopurinolAllopurinol7421
Buspirone HclBuspirone Hcl7325
Duloxetine HclDuloxetine Hcl7116
Pravastatin SodiumPravastatin Sodium7021
FinasterideFinasteride6519
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6518
Trazodone HclTrazodone Hcl6518
Doxazosin MesylateDoxazosin Mesylate5817
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5820
Metoprolol TartrateMetoprolol Tartrate5519
Trelegy ElliptaFluticasone/Umeclidin/Vilanter5411
Albuterol Sulfate HfaAlbuterol Sulfate4839
Tizanidine HclTizanidine Hcl4818
SpironolactoneSpironolactone4716
Glipizide ErGlipizide4312
Ipratropium BromideIpratropium Bromide4222
Fluoxetine HclFluoxetine Hcl4011
JardianceEmpagliflozin40suppressed
ChlorthalidoneChlorthalidone3912
Escitalopram OxalateEscitalopram Oxalate39suppressed
Montelukast SodiumMontelukast Sodium3911
PregabalinPregabalin3913
SimvastatinSimvastatin3612
ClopidogrelClopidogrel Bisulfate3412
EzetimibeEzetimibe3412
OzempicSemaglutide34suppressed
Donepezil HclDonepezil Hcl33suppressed
Potassium ChloridePotassium Chloride3314
AtenololAtenolol31suppressed
Citalopram HbrCitalopram Hydrobromide31suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl30suppressed
Warfarin SodiumWarfarin Sodium30suppressed
LansoprazoleLansoprazole29suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2816
Pioglitazone HclPioglitazone Hcl28suppressed
PrednisonePrednisone2726
Tramadol HclTramadol Hcl27suppressed
Venlafaxine Hcl ErVenlafaxine Hcl27suppressed
Propranolol HclPropranolol Hcl26suppressed
CelecoxibCelecoxib25suppressed
Paroxetine HclParoxetine Hcl25suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog25suppressed
Alendronate SodiumAlendronate Sodium24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
FarxigaDapagliflozin Propanediol22suppressed
Verapamil ErVerapamil Hcl22suppressed
AlprazolamAlprazolam21suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr21suppressed
Bupropion Hcl SrBupropion Hcl20suppressed
SynthroidLevothyroxine Sodium20suppressed
ValsartanValsartan20suppressed
Incruse ElliptaUmeclidinium Bromide19suppressed
IrbesartanIrbesartan19suppressed
LovastatinLovastatin19suppressed
Breztri AerosphereBudesonide/Glycopyr/Formoterol18suppressed
BumetanideBumetanide18suppressed
Bupropion HclBupropion Hcl17suppressed
CephalexinCephalexin1711
Fluticasone-SalmeterolFluticasone Propion/Salmeterol17suppressed
PrimidonePrimidone17suppressed
Propranolol Hcl ErPropranolol Hcl17suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1616
Bupropion XlBupropion Hcl16suppressed
CiclopiroxCiclopirox16suppressed
JanuviaSitagliptin Phosphate16suppressed
Novolog FlexpenInsulin Aspart16suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl16suppressed
BaclofenBaclofen15suppressed
Hydroxyzine HclHydroxyzine Hcl15suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate15suppressed
Qvar RedihalerBeclomethasone Dipropionate15suppressed
Bisoprolol FumarateBisoprolol Fumarate14suppressed
Doxycycline HyclateDoxycycline Hyclate1411
Nifedipine ErNifedipine13suppressed
RamiprilRamipril13suppressed
TorsemideTorsemide13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
GlipizideGlipizide12suppressed
IbuprofenIbuprofen12suppressed
MeloxicamMeloxicam12suppressed
NystatinNystatin12suppressed
Oxybutynin Chloride ErOxybutynin Chloride12suppressed
Triamcinolone AcetonideTriamcinolone Acetonide12suppressed
GlimepirideGlimepiride11suppressed
Morphine Sulfate ErMorphine Sulfate11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed

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