Healthcare provider profile · identity verified

Eric Karl Gustafson, MD

Allopathic & Osteopathic Physicians|Family Medicine · HOLLAND, MI · NPI 1093809543

Profile state: payments and partd 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

CMS Open Payments records show Eric Karl Gustafson, MD received $25.17 in general payments during 2025 across 1 reported records.

Alkermes, Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$25.17

1 reported records · 1 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Alkermes, Inc. Unresolved — no canonical attribution shown $25.17100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$25.171

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $25.17 1 2025
Source payment records
ARISTADA INITIO
Normalized: aristada initio
Drug Alkermes, Inc. $25.17 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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 Calcium844232
LisinoprilLisinopril530147
Amlodipine BesylateAmlodipine Besylate419110
Levothyroxine SodiumLevothyroxine Sodium34994
Losartan PotassiumLosartan Potassium32987
Metformin HclMetformin Hcl29384
OmeprazoleOmeprazole25773
Tamsulosin HclTamsulosin Hcl23066
SimvastatinSimvastatin21356
Metoprolol SuccinateMetoprolol Succinate20862
Fluoxetine HclFluoxetine Hcl17550
HydrochlorothiazideHydrochlorothiazide17151
Rosuvastatin CalciumRosuvastatin Calcium13744
GabapentinGabapentin13138
MounjaroTirzepatide12020
EliquisApixaban10926
Potassium ChloridePotassium Chloride10330
FurosemideFurosemide10233
Pantoprazole SodiumPantoprazole Sodium10029
IrbesartanIrbesartan9730
Metoprolol TartrateMetoprolol Tartrate9525
AllopurinolAllopurinol9226
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8641
AlprazolamAlprazolam7929
Trazodone HclTrazodone Hcl7021
XareltoRivaroxaban6617
Duloxetine HclDuloxetine Hcl6116
Tramadol HclTramadol Hcl6015
Sertraline HclSertraline Hcl5717
FinasterideFinasteride5514
ClopidogrelClopidogrel Bisulfate5314
ClonazepamClonazepam5011
Triamcinolone AcetonideTriamcinolone Acetonide4818
AbrysvoRsv Vacc, Pref A And Pref B/Pf4747
TrulicityDulaglutide46suppressed
Albuterol Sulfate HfaAlbuterol Sulfate4525
Escitalopram OxalateEscitalopram Oxalate4214
ShingrixVaricella-Zoster Ge/As01b/Pf4241
SpironolactoneSpironolactone4214
Hydralazine HclHydralazine Hcl4111
Montelukast SodiumMontelukast Sodium4011
Pioglitazone HclPioglitazone Hcl3912
PrednisonePrednisone3927
LovastatinLovastatin3812
Metformin Hcl ErMetformin Hcl3812
CarvedilolCarvedilol3614
Fluticasone PropionateFluticasone Propionate35suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog35suppressed
Citalopram HbrCitalopram Hydrobromide34suppressed
Pravastatin SodiumPravastatin Sodium34suppressed
Glipizide ErGlipizide33suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf3030
Bupropion XlBupropion Hcl30suppressed
FarxigaDapagliflozin Propanediol30suppressed
Klor-Con M20Potassium Chloride30suppressed
MeloxicamMeloxicam3013
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate28suppressed
ValacyclovirValacyclovir Hcl2813
CephalexinCephalexin2727
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide27suppressed
OzempicSemaglutide27suppressed
Sumatriptan SuccinateSumatriptan Succinate26suppressed
JantovenWarfarin Sodium25suppressed
LorazepamLorazepam25suppressed
AtenololAtenolol24suppressed
JanuviaSitagliptin Phosphate24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium23suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol23suppressed
Warfarin SodiumWarfarin Sodium23suppressed
EzetimibeEzetimibe22suppressed
FenofibrateFenofibrate22suppressed
TopiramateTopiramate22suppressed
Benazepril HclBenazepril Hcl21suppressed
Oxybutynin ChlorideOxybutynin Chloride21suppressed
Zolpidem TartrateZolpidem Tartrate21suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen20suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid20suppressed
Hydroxyzine HclHydroxyzine Hcl19suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate19suppressed
Dicyclomine HclDicyclomine Hcl18suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1717
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr17suppressed
ChlorthalidoneChlorthalidone17suppressed
Clonidine HclClonidine Hcl17suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine17suppressed
MethylprednisoloneMethylprednisolone17suppressed
BaclofenBaclofen16suppressed
Estradiol (Once Weekly)Estradiol16suppressed
Methylphenidate HclMethylphenidate Hcl16suppressed
AzithromycinAzithromycin1515
FamotidineFamotidine15suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst15suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril14suppressed
GlimepirideGlimepiride14suppressed
ModafinilModafinil14suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic14suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl14suppressed
AmoxicillinAmoxicillin13suppressed
BumetanideBumetanide13suppressed
Ciprofloxacin HclCiprofloxacin Hcl1313
Diclofenac SodiumDiclofenac Sodium13suppressed
IbuprofenIbuprofen13suppressed
MirtazapineMirtazapine13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil13suppressed
Advair HfaFluticasone Propion/Salmeterol12suppressed
PregabalinPregabalin12suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Methadone HclMethadone Hcl11suppressed
Morphine Sulfate ErMorphine Sulfate11suppressed
Paroxetine HclParoxetine Hcl11suppressed
Quetiapine FumarateQuetiapine Fumarate11suppressed
Venlafaxine Hcl ErVenlafaxine 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 $25.17 · 1 records Alkermes, Inc. ARISTADA, ARISTADA INITIO
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