Healthcare provider profile · identity verified

John S Macdonald, MD

Internal Medicine · SAINT JOHNS, MI · NPI 1215038906

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
Amlodipine BesylateAmlodipine Besylate23558
Levothyroxine SodiumLevothyroxine Sodium19648
Losartan PotassiumLosartan Potassium15941
Metoprolol SuccinateMetoprolol Succinate15241
Atorvastatin CalciumAtorvastatin Calcium13636
Rosuvastatin CalciumRosuvastatin Calcium12436
OmeprazoleOmeprazole12331
PrednisonePrednisone10963
GabapentinGabapentin10125
FurosemideFurosemide8627
HydrochlorothiazideHydrochlorothiazide8622
LisinoprilLisinopril8519
Duloxetine HclDuloxetine Hcl7918
Montelukast SodiumMontelukast Sodium7018
Potassium ChloridePotassium Chloride6922
Metformin Hcl ErMetformin Hcl6415
Sertraline HclSertraline Hcl6321
Metformin HclMetformin Hcl6014
GlimepirideGlimepiride59suppressed
LorazepamLorazepam4920
Tramadol HclTramadol Hcl49suppressed
AllopurinolAllopurinol4613
EzetimibeEzetimibe4512
Pantoprazole SodiumPantoprazole Sodium4514
Tamsulosin HclTamsulosin Hcl4514
XareltoRivaroxaban43suppressed
Paroxetine HclParoxetine Hcl4211
Trazodone HclTrazodone Hcl4212
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen38suppressed
SimvastatinSimvastatin38suppressed
Metoprolol TartrateMetoprolol Tartrate3711
Donepezil HclDonepezil Hcl31suppressed
ClopidogrelClopidogrel Bisulfate30suppressed
EliquisApixaban30suppressed
Amiodarone HclAmiodarone Hcl25suppressed
AtenololAtenolol25suppressed
Hydralazine HclHydralazine Hcl24suppressed
Warfarin SodiumWarfarin Sodium24suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter23suppressed
AzithromycinAzithromycin2118
CephalexinCephalexin2014
Doxycycline HyclateDoxycycline Hyclate2013
BumetanideBumetanide19suppressed
JanuviaSitagliptin Phosphate19suppressed
CelecoxibCelecoxib18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
Albuterol Sulfate HfaAlbuterol Sulfate17suppressed
CarvedilolCarvedilol17suppressed
Citalopram HbrCitalopram Hydrobromide17suppressed
DiazepamDiazepam17suppressed
IbuprofenIbuprofen17suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Breo ElliptaFluticasone/Vilanterol16suppressed
ClonazepamClonazepam16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol16suppressed
MeloxicamMeloxicam16suppressed
Ondansetron HclOndansetron Hcl16suppressed
Quetiapine FumarateQuetiapine Fumarate16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
OlanzapineOlanzapine15suppressed
Propranolol Hcl ErPropranolol Hcl15suppressed
SynthroidLevothyroxine Sodium15suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic15suppressed
Dicyclomine HclDicyclomine Hcl14suppressed
LevetiracetamLevetiracetam14suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide14suppressed
NitrofurantoinNitrofurantoin Macrocrystal14suppressed
NystatinNystatin14suppressed
AlprazolamAlprazolam13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Escitalopram OxalateEscitalopram Oxalate13suppressed
FluconazoleFluconazole13suppressed
Propranolol HclPropranolol Hcl13suppressed
SymbicortBudesonide/Formoterol Fumarate13suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine12suppressed
FamotidineFamotidine12suppressed
FentanylFentanyl12suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate12suppressed
LevofloxacinLevofloxacin12suppressed
MounjaroTirzepatide12suppressed
Spiriva HandihalerTiotropium Bromide12suppressed
TradjentaLinagliptin12suppressed
Varenicline TartrateVarenicline Tartrate12suppressed
Atrovent HfaIpratropium Bromide11suppressed
Ciprofloxacin HclCiprofloxacin Hcl11suppressed
Clindamycin HclClindamycin Hcl11suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl11suppressed
TadalafilTadalafil11suppressed

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