Healthcare provider profile · identity verified

Clark Matthew Creger, M.D.

Family Practice · GARDEN CITY, MI · NPI 1699904086

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	360	101
Losartan Potassium	Losartan Potassium	312	85
Lisinopril	Lisinopril	311	83
Amlodipine Besylate	Amlodipine Besylate	272	76
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	252	38
Levothyroxine Sodium	Levothyroxine Sodium	225	55
Metoprolol Succinate	Metoprolol Succinate	204	59
Omeprazole	Omeprazole	184	47
Alprazolam	Alprazolam	175	28
Rosuvastatin Calcium	Rosuvastatin Calcium	173	51
Tamsulosin Hcl	Tamsulosin Hcl	162	46
Metformin Hcl Er	Metformin Hcl	155	49
Metformin Hcl	Metformin Hcl	144	38
Gabapentin	Gabapentin	135	38
Albuterol Sulfate Hfa	Albuterol Sulfate	125	34
Tramadol Hcl	Tramadol Hcl	123	26
Simvastatin	Simvastatin	120	36
Ibuprofen	Ibuprofen	117	26
Hydrochlorothiazide	Hydrochlorothiazide	114	33
Atenolol	Atenolol	112	30
Furosemide	Furosemide	104	39
Eliquis	Apixaban	94	27
Tizanidine Hcl	Tizanidine Hcl	94	37
Montelukast Sodium	Montelukast Sodium	92	28
Pravastatin Sodium	Pravastatin Sodium	92	25
Pantoprazole Sodium	Pantoprazole Sodium	91	23
Carvedilol	Carvedilol	83	23
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	72	20
Trazodone Hcl	Trazodone Hcl	72	22
Allopurinol	Allopurinol	69	18
Baclofen	Baclofen	69	16
Famotidine	Famotidine	69	26
Glipizide Er	Glipizide	66	18
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	66	20
Buspirone Hcl	Buspirone Hcl	65	20
Sertraline Hcl	Sertraline Hcl	64	18
Ventolin Hfa	Albuterol Sulfate	64	14
Ipratropium Bromide	Ipratropium Bromide	63	31
Clopidogrel	Clopidogrel Bisulfate	59	17
Escitalopram Oxalate	Escitalopram Oxalate	56	14
Fluticasone Propionate	Fluticasone Propionate	56	31
Hydroxyzine Hcl	Hydroxyzine Hcl	56	23
Metoprolol Tartrate	Metoprolol Tartrate	55	18
Ondansetron Hcl	Ondansetron Hcl	55	19
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	54	12
Ozempic	Semaglutide	54	suppressed
Meloxicam	Meloxicam	51	15
Zolpidem Tartrate	Zolpidem Tartrate	51	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	49	20
Finasteride	Finasteride	47	17
Nifedipine Er	Nifedipine	44	13
Amitriptyline Hcl	Amitriptyline Hcl	41	13
Trulicity	Dulaglutide	41	suppressed
Pregabalin	Pregabalin	40	15
Venlafaxine Hcl Er	Venlafaxine Hcl	38	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	37	suppressed
Benazepril Hcl	Benazepril Hcl	36	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	36	19
Xarelto	Rivaroxaban	36	suppressed
Diazepam	Diazepam	33	suppressed
Hydralazine Hcl	Hydralazine Hcl	32	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	31	suppressed
Hydrocortisone	Hydrocortisone	31	13
Topiramate	Topiramate	31	suppressed
Lorazepam	Lorazepam	30	suppressed
Ketoconazole	Ketoconazole	29	15
Spironolactone	Spironolactone	29	suppressed
Warfarin Sodium	Warfarin Sodium	28	suppressed
Methylprednisolone	Methylprednisolone	27	22
Mounjaro	Tirzepatide	27	suppressed
Potassium Chloride	Potassium Chloride	27	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	26	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	26	suppressed
Chlorthalidone	Chlorthalidone	25	suppressed
Diclofenac Sodium	Diclofenac Sodium	24	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	23	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	23	suppressed
Mirtazapine	Mirtazapine	23	suppressed
Alendronate Sodium	Alendronate Sodium	22	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	22	17
Meclizine Hcl	Meclizine Hcl	22	suppressed
Ropinirole Hcl	Ropinirole Hcl	22	suppressed
Atrovent Hfa	Ipratropium Bromide	20	suppressed
Bupropion Hcl Sr	Bupropion Hcl	20	suppressed
Citalopram Hbr	Citalopram Hydrobromide	20	suppressed
Ezetimibe	Ezetimibe	20	suppressed
Farxiga	Dapagliflozin Propanediol	20	suppressed
Incruse Ellipta	Umeclidinium Bromide	20	suppressed
Paroxetine Hcl	Paroxetine Hcl	20	suppressed
Prednisone	Prednisone	19	suppressed
Azithromycin	Azithromycin	18	15
Jardiance	Empagliflozin	18	suppressed
Lactulose	Lactulose	18	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	18	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	17	suppressed
Valsartan	Valsartan	16	suppressed
Colchicine	Colchicine	15	suppressed
Glipizide	Glipizide	15	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Naproxen	Naproxen	14	suppressed
Oxazepam	Oxazepam	14	suppressed
Amoxicillin	Amoxicillin	13	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Bumetanide	Bumetanide	13	suppressed
Cilostazol	Cilostazol	13	suppressed
Linzess	Linaclotide	13	suppressed
Mupirocin	Mupirocin	13	11
Nystatin	Nystatin	13	suppressed
Oxycodone Hcl	Oxycodone Hcl	13	suppressed
Sucralfate	Sucralfate	13	suppressed
Testosterone Cypionate	Testosterone Cypionate	13	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	12	12
Bupropion Xl	Bupropion Hcl	12	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	12	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	12	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	12	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	12	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	11	suppressed
Duloxetine Hcl	Duloxetine Hcl	11	suppressed
Lurasidone Hcl	Lurasidone Hcl	11	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	11	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	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