Healthcare provider profile · identity verified

Casey Jon Key, MD

Family Practice · GRAND RAPIDS, MI · NPI 1053870113

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

Brand	Generic	Claims	Beneficiaries
Atorvastatin Calcium	Atorvastatin Calcium	330	160
Amlodipine Besylate	Amlodipine Besylate	221	105
Lisinopril	Lisinopril	193	87
Levothyroxine Sodium	Levothyroxine Sodium	159	72
Omeprazole	Omeprazole	134	69
Losartan Potassium	Losartan Potassium	133	62
Rosuvastatin Calcium	Rosuvastatin Calcium	120	55
Tamsulosin Hcl	Tamsulosin Hcl	108	52
Metformin Hcl	Metformin Hcl	107	55
Metoprolol Succinate	Metoprolol Succinate	99	45
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	97	36
Simvastatin	Simvastatin	91	49
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	85	53
Alendronate Sodium	Alendronate Sodium	80	34
Pantoprazole Sodium	Pantoprazole Sodium	73	26
Furosemide	Furosemide	71	25
Gabapentin	Gabapentin	68	33
Ezetimibe	Ezetimibe	66	20
Trazodone Hcl	Trazodone Hcl	66	36
Eliquis	Apixaban	64	26
Hydrochlorothiazide	Hydrochlorothiazide	63	29
Escitalopram Oxalate	Escitalopram Oxalate	54	26
Carvedilol	Carvedilol	52	18
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	51	32
Allopurinol	Allopurinol	48	25
Albuterol Sulfate Hfa	Albuterol Sulfate	47	24
Mounjaro	Tirzepatide	47	16
Pravastatin Sodium	Pravastatin Sodium	47	16
Bupropion Xl	Bupropion Hcl	45	16
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	44	15
Finasteride	Finasteride	43	16
Metformin Hcl Er	Metformin Hcl	43	19
Alprazolam	Alprazolam	41	15
Duloxetine Hcl	Duloxetine Hcl	41	16
Trulicity	Dulaglutide	41	12
Tramadol Hcl	Tramadol Hcl	39	16
Potassium Chloride	Potassium Chloride	37	11
Fluticasone Propionate	Fluticasone Propionate	36	21
Jardiance	Empagliflozin	35	21
Hydralazine Hcl	Hydralazine Hcl	34	suppressed
Sertraline Hcl	Sertraline Hcl	33	17
Famotidine	Famotidine	32	18
Venlafaxine Hcl Er	Venlafaxine Hcl	32	suppressed
Citalopram Hbr	Citalopram Hydrobromide	31	16
Clopidogrel	Clopidogrel Bisulfate	31	11
Fluoxetine Hcl	Fluoxetine Hcl	29	15
Januvia	Sitagliptin Phosphate	28	12
Ozempic	Semaglutide	26	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	26	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	25	12
Prednisone	Prednisone	24	16
Mirtazapine	Mirtazapine	23	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	22	11
Meloxicam	Meloxicam	21	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	20	suppressed
Glipizide Er	Glipizide	19	suppressed
Montelukast Sodium	Montelukast Sodium	19	11
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	19	11
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	18	18
Ropinirole Hcl	Ropinirole Hcl	18	suppressed
Tizanidine Hcl	Tizanidine Hcl	18	suppressed
Carbamazepine Er	Carbamazepine	17	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	17	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	17	suppressed
Lovastatin	Lovastatin	17	13
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	17	14
Atenolol	Atenolol	16	suppressed
Levetiracetam	Levetiracetam	16	suppressed
Enalapril Maleate	Enalapril Maleate	15	suppressed
Hydrocortisone	Hydrocortisone	15	suppressed
Paroxetine Hcl	Paroxetine Hcl	15	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	15	11
Warfarin Sodium	Warfarin Sodium	15	suppressed
Lansoprazole	Lansoprazole	14	suppressed
Morphine Sulfate Er	Morphine Sulfate	14	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	14	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Farxiga	Dapagliflozin Propanediol	13	suppressed
Liothyronine Sodium	Liothyronine Sodium	13	suppressed
Bydureon Bcise	Exenatide Microspheres	12	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	12	suppressed
Pregabalin	Pregabalin	12	suppressed
Valacyclovir	Valacyclovir Hcl	12	suppressed
Azelastine Hcl	Azelastine Hcl	11	suppressed
Buspirone Hcl	Buspirone Hcl	11	suppressed
Clonazepam	Clonazepam	11	suppressed
Oxycodone Hcl	Oxycodone Hcl	11	suppressed

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.

Year	General Payments	Main payer	Explicit products	Company overlaps	Part D coverage
2025	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

Are there reasonable alternatives I should understand when we discuss treatment options?
How should I interpret the industry-payment records shown here in the context of my care?

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.

Loaded source releases

Dataset	Year	Publication	Source
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