Healthcare provider profile · identity verified

Timothy T Wellemeyer, MD

Family Practice · HOLT, MI · NPI 1407814916

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
Levothyroxine Sodium	Levothyroxine Sodium	482	142
Omeprazole	Omeprazole	473	151
Amlodipine Besylate	Amlodipine Besylate	443	132
Rosuvastatin Calcium	Rosuvastatin Calcium	378	120
Atorvastatin Calcium	Atorvastatin Calcium	357	112
Losartan Potassium	Losartan Potassium	279	88
Pantoprazole Sodium	Pantoprazole Sodium	258	86
Metoprolol Succinate	Metoprolol Succinate	256	81
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	254	73
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	201	62
Metformin Hcl Er	Metformin Hcl	193	58
Lisinopril	Lisinopril	189	59
Meloxicam	Meloxicam	168	66
Ozempic	Semaglutide	159	33
Tamsulosin Hcl	Tamsulosin Hcl	145	48
Simvastatin	Simvastatin	144	45
Escitalopram Oxalate	Escitalopram Oxalate	131	36
Carvedilol	Carvedilol	130	41
Pravastatin Sodium	Pravastatin Sodium	116	38
Bupropion Xl	Bupropion Hcl	110	30
Tramadol Hcl	Tramadol Hcl	108	22
Pioglitazone Hcl	Pioglitazone Hcl	102	33
Alprazolam	Alprazolam	100	32
Sertraline Hcl	Sertraline Hcl	95	29
Allopurinol	Allopurinol	90	29
Eliquis	Apixaban	89	32
Spironolactone	Spironolactone	87	32
Trazodone Hcl	Trazodone Hcl	86	30
Clonazepam	Clonazepam	82	20
Metformin Hcl	Metformin Hcl	82	25
Fluoxetine Hcl	Fluoxetine Hcl	80	23
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	79	21
Ketoconazole	Ketoconazole	79	44
Montelukast Sodium	Montelukast Sodium	78	21
Zolpidem Tartrate	Zolpidem Tartrate	72	24
Jardiance	Empagliflozin	71	27
Venlafaxine Hcl Er	Venlafaxine Hcl	70	22
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	69	29
Januvia	Sitagliptin Phosphate	69	19
Prednisone	Prednisone	64	32
Betamethasone Dipropionate	Betamethasone Dipropionate	62	40
Doxazosin Mesylate	Doxazosin Mesylate	61	17
Finasteride	Finasteride	54	16
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	54	15
Gabapentin	Gabapentin	53	16
Ezetimibe	Ezetimibe	52	18
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	51	16
Esomeprazole Magnesium	Esomeprazole Magnesium	50	13
Ibuprofen	Ibuprofen	49	21
Potassium Chloride	Potassium Chloride	48	17
Valacyclovir	Valacyclovir Hcl	47	22
Metoprolol Tartrate	Metoprolol Tartrate	43	15
Albuterol Sulfate Hfa	Albuterol Sulfate	39	26
Alendronate Sodium	Alendronate Sodium	38	12
Furosemide	Furosemide	38	15
Bupropion Hcl Sr	Bupropion Hcl	36	11
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	35	12
Acyclovir	Acyclovir	34	11
Atenolol	Atenolol	34	11
Isosorbide Mononitrate Er	Isosorbide Mononitrate	33	11
Triamcinolone Acetonide	Triamcinolone Acetonide	32	13
Cefdinir	Cefdinir	31	27
Fluticasone Propionate	Fluticasone Propionate	31	18
Clopidogrel	Clopidogrel Bisulfate	29	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	28	suppressed
Celecoxib	Celecoxib	27	12
Duloxetine Hcl	Duloxetine Hcl	27	suppressed
Ondansetron Hcl	Ondansetron Hcl	27	suppressed
Irbesartan	Irbesartan	26	suppressed
Lorazepam	Lorazepam	26	suppressed
Nadolol	Nadolol	26	suppressed
Trulicity	Dulaglutide	25	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	24	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	24	suppressed
Estradiol	Estradiol	23	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	23	suppressed
Xarelto	Rivaroxaban	23	suppressed
Ipratropium Bromide	Ipratropium Bromide	22	suppressed
Lansoprazole	Lansoprazole	22	suppressed
Propranolol Hcl Er	Propranolol Hcl	22	suppressed
Aripiprazole	Aripiprazole	21	suppressed
Cholestyramine	Cholestyramine (With Sugar)	21	suppressed
Metformin Er Osmotic	Metformin Hcl	21	suppressed
Raloxifene Hcl	Raloxifene Hcl	21	suppressed
Citalopram Hbr	Citalopram Hydrobromide	20	suppressed
Potassium Citrate Er	Potassium Citrate	20	suppressed
Amoxicillin	Amoxicillin	19	14
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	18	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	18	suppressed
Hydrocortisone	Hydrocortisone	18	suppressed
Hydrocortisone Valerate	Hydrocortisone Valerate	18	11
Memantine Hcl	Memantine Hcl	18	suppressed
Metronidazole	Metronidazole	18	13
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	18	suppressed
Warfarin Sodium	Warfarin Sodium	18	suppressed
Mirtazapine	Mirtazapine	17	suppressed
Mometasone Furoate	Mometasone Furoate	17	13
Sumatriptan Succinate	Sumatriptan Succinate	17	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	16	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	16	suppressed
Paroxetine Hcl	Paroxetine Hcl	16	suppressed
Tresiba Flextouch U-200	Insulin Degludec	16	suppressed
Diazepam	Diazepam	15	suppressed
Meclizine Hcl	Meclizine Hcl	15	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	15	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	14	suppressed
Farxiga	Dapagliflozin Propanediol	14	suppressed
Glimepiride	Glimepiride	14	suppressed
Linzess	Linaclotide	14	suppressed
Synthroid	Levothyroxine Sodium	14	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	14	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	13	suppressed
Imipramine Hcl	Imipramine Hcl	13	suppressed
Ultra-Fine Micro Pen Needle	Pen Needle, Diabetic	13	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	12	suppressed
Buspirone Hcl	Buspirone Hcl	12	suppressed
Chlorthalidone	Chlorthalidone	12	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	12	suppressed
Topiramate	Topiramate	12	suppressed
Lovastatin	Lovastatin	11	suppressed
Mounjaro	Tirzepatide	11	suppressed
Myrbetriq	Mirabegron	11	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	11	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	11	suppressed
Pregabalin	Pregabalin	11	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	11	suppressed
Tizanidine Hcl	Tizanidine 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