Healthcare provider profile · identity verified

Gerald William Gertiser, FNP

Nurse Practitioner · GRAYLING, MI · NPI 1982682738

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 Calcium17359
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen16023
LisinoprilLisinopril12746
Albuterol Sulfate HfaAlbuterol Sulfate12471
PrednisonePrednisone11187
Metoprolol SuccinateMetoprolol Succinate10634
Levothyroxine SodiumLevothyroxine Sodium10426
AzithromycinAzithromycin9083
Amlodipine BesylateAmlodipine Besylate8934
OmeprazoleOmeprazole8329
Lantus SolostarInsulin Glargine,hum.Rec.Anlog7713
GlimepirideGlimepiride7320
Metformin HclMetformin Hcl6620
Losartan PotassiumLosartan Potassium6120
PregabalinPregabalin60suppressed
Ciprofloxacin HclCiprofloxacin Hcl5850
BaclofenBaclofen5522
GabapentinGabapentin5517
CephalexinCephalexin4842
Fluticasone PropionateFluticasone Propionate4827
MeloxicamMeloxicam4822
Fluoxetine HclFluoxetine Hcl4713
Fluticasone-SalmeterolFluticasone Propion/Salmeterol4316
Tramadol HclTramadol Hcl4211
MupirocinMupirocin4028
Citalopram HbrCitalopram Hydrobromide3813
Triamcinolone AcetonideTriamcinolone Acetonide3832
Warfarin SodiumWarfarin Sodium38suppressed
OzempicSemaglutide37suppressed
TorsemideTorsemide37suppressed
Potassium ChloridePotassium Chloride3512
Pravastatin SodiumPravastatin Sodium35suppressed
Ventolin HfaAlbuterol Sulfate3515
AmoxicillinAmoxicillin3333
SimvastatinSimvastatin3313
DexamethasoneDexamethasone3030
Duloxetine HclDuloxetine Hcl29suppressed
Doxycycline HyclateDoxycycline Hyclate2827
XareltoRivaroxaban28suppressed
BumetanideBumetanide27suppressed
CefuroximeCefuroxime Axetil2726
HydrochlorothiazideHydrochlorothiazide26suppressed
ChlorthalidoneChlorthalidone2511
FurosemideFurosemide25suppressed
Tamsulosin HclTamsulosin Hcl25suppressed
Buspirone HclBuspirone Hcl23suppressed
ClopidogrelClopidogrel Bisulfate22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
Bisoprolol FumarateBisoprolol Fumarate21suppressed
Escitalopram OxalateEscitalopram Oxalate21suppressed
LorazepamLorazepam21suppressed
Pioglitazone HclPioglitazone Hcl21suppressed
TrulicityDulaglutide21suppressed
AlprazolamAlprazolam20suppressed
JanuviaSitagliptin Phosphate20suppressed
SpironolactoneSpironolactone20suppressed
FamotidineFamotidine18suppressed
JardianceEmpagliflozin18suppressed
Pantoprazole SodiumPantoprazole Sodium18suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate17suppressed
Dicyclomine HclDicyclomine Hcl17suppressed
FluconazoleFluconazole17suppressed
Gentamicin SulfateGentamicin Sulfate1717
IbuprofenIbuprofen17suppressed
EzetimibeEzetimibe16suppressed
Metoprolol TartrateMetoprolol Tartrate16suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1513
Atrovent HfaIpratropium Bromide15suppressed
Humalog Kwikpen U-100Insulin Lispro15suppressed
Trazodone HclTrazodone Hcl15suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter15suppressed
NaproxenNaproxen14suppressed
Rosuvastatin CalciumRosuvastatin Calcium14suppressed
Midodrine HclMidodrine Hcl13suppressed
Wixela InhubFluticasone Propion/Salmeterol13suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog12suppressed
ClonazepamClonazepam12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
Ondansetron OdtOndansetron1211
Alendronate SodiumAlendronate Sodium11suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
Doxycycline MonohydrateDoxycycline Monohydrate11suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro11suppressed
Spiriva HandihalerTiotropium Bromide11suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1111
Venlafaxine Hcl ErVenlafaxine Hcl11suppressed
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