Healthcare provider profile · identity verified

Ryan Earl Wissner, DO

Family Practice · ZEELAND, MI · NPI 1811309958

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 Calcium28490
LisinoprilLisinopril16653
OmeprazoleOmeprazole13039
Amlodipine BesylateAmlodipine Besylate12139
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen12126
Levothyroxine SodiumLevothyroxine Sodium11438
Metformin HclMetformin Hcl10932
Rosuvastatin CalciumRosuvastatin Calcium10233
Losartan PotassiumLosartan Potassium9829
GabapentinGabapentin8938
Tamsulosin HclTamsulosin Hcl7726
HydrochlorothiazideHydrochlorothiazide7622
Metoprolol SuccinateMetoprolol Succinate6822
Albuterol Sulfate HfaAlbuterol Sulfate6135
CarvedilolCarvedilol5921
Duloxetine HclDuloxetine Hcl5419
Metformin Hcl ErMetformin Hcl5320
MounjaroTirzepatide5311
Zolpidem TartrateZolpidem Tartrate50suppressed
JardianceEmpagliflozin4914
AlprazolamAlprazolam40suppressed
Pantoprazole SodiumPantoprazole Sodium4013
EliquisApixaban3914
Trazodone HclTrazodone Hcl3614
FurosemideFurosemide3515
Alendronate SodiumAlendronate Sodium3411
MeloxicamMeloxicam3215
TrulicityDulaglutide32suppressed
Montelukast SodiumMontelukast Sodium3112
Potassium ChloridePotassium Chloride3112
Fluticasone PropionateFluticasone Propionate3015
PrednisonePrednisone3016
SimvastatinSimvastatin30suppressed
Metoprolol TartrateMetoprolol Tartrate28suppressed
Sertraline HclSertraline Hcl2811
Paroxetine HclParoxetine Hcl25suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2315
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide23suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2320
PregabalinPregabalin23suppressed
Bupropion XlBupropion Hcl22suppressed
AcyclovirAcyclovir20suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate20suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide20suppressed
AllopurinolAllopurinol19suppressed
Pioglitazone HclPioglitazone Hcl19suppressed
Escitalopram OxalateEscitalopram Oxalate18suppressed
GlipizideGlipizide18suppressed
Tramadol HclTramadol Hcl18suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate17suppressed
FamotidineFamotidine17suppressed
Hydralazine HclHydralazine Hcl17suppressed
LorazepamLorazepam17suppressed
MupirocinMupirocin1713
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Tizanidine HclTizanidine Hcl17suppressed
XareltoRivaroxaban17suppressed
FinasterideFinasteride16suppressed
Hydroxyzine HclHydroxyzine Hcl16suppressed
Hydroxyzine PamoateHydroxyzine Pamoate16suppressed
JanuviaSitagliptin Phosphate16suppressed
OzempicSemaglutide16suppressed
SpironolactoneSpironolactone16suppressed
Bupropion Hcl SrBupropion Hcl15suppressed
ClopidogrelClopidogrel Bisulfate15suppressed
Fluoxetine HclFluoxetine Hcl15suppressed
IbuprofenIbuprofen15suppressed
LevetiracetamLevetiracetam15suppressed
Citalopram HbrCitalopram Hydrobromide14suppressed
Diclofenac SodiumDiclofenac Sodium14suppressed
FebuxostatFebuxostat14suppressed
LamotrigineLamotrigine14suppressed
EzetimibeEzetimibe13suppressed
FluconazoleFluconazole13suppressed
MirtazapineMirtazapine13suppressed
Pravastatin SodiumPravastatin Sodium13suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid13suppressed
ValsartanValsartan13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
AmoxicillinAmoxicillin12suppressed
ChlorthalidoneChlorthalidone12suppressed
Incruse ElliptaUmeclidinium Bromide12suppressed
Ondansetron OdtOndansetron12suppressed
TemazepamTemazepam12suppressed
Terazosin HclTerazosin Hcl12suppressed
Clonidine HclClonidine Hcl11suppressed
EntrestoSacubitril/Valsartan11suppressed
LansoprazoleLansoprazole11suppressed
Ondansetron HclOndansetron Hcl11suppressed

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