Healthcare provider profile · identity verified

William R Bogan, M.D.

Internal Medicine · BATTLE CREEK, MI · NPI 1376688127

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
Amlodipine Besylate	Amlodipine Besylate	552	171
Atorvastatin Calcium	Atorvastatin Calcium	510	157
Losartan Potassium	Losartan Potassium	490	146
Metoprolol Succinate	Metoprolol Succinate	417	130
Levothyroxine Sodium	Levothyroxine Sodium	390	116
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	384	71
Omeprazole	Omeprazole	344	120
Lisinopril	Lisinopril	328	107
Rosuvastatin Calcium	Rosuvastatin Calcium	293	88
Escitalopram Oxalate	Escitalopram Oxalate	245	71
Pravastatin Sodium	Pravastatin Sodium	237	73
Alprazolam	Alprazolam	225	50
Tamsulosin Hcl	Tamsulosin Hcl	225	72
Ozempic	Semaglutide	199	40
Metformin Hcl	Metformin Hcl	189	56
Simvastatin	Simvastatin	184	62
Gabapentin	Gabapentin	179	48
Potassium Chloride	Potassium Chloride	167	59
Pantoprazole Sodium	Pantoprazole Sodium	165	52
Hydrochlorothiazide	Hydrochlorothiazide	161	56
Hydralazine Hcl	Hydralazine Hcl	151	47
Furosemide	Furosemide	141	53
Tramadol Hcl	Tramadol Hcl	137	26
Albuterol Sulfate Hfa	Albuterol Sulfate	132	54
Clopidogrel	Clopidogrel Bisulfate	132	41
Metoprolol Tartrate	Metoprolol Tartrate	129	41
Donepezil Hcl	Donepezil Hcl	125	30
Carvedilol	Carvedilol	119	35
Allopurinol	Allopurinol	115	39
Duloxetine Hcl	Duloxetine Hcl	112	30
Metformin Hcl Er	Metformin Hcl	105	34
Eliquis	Apixaban	104	28
Trazodone Hcl	Trazodone Hcl	98	31
Atenolol	Atenolol	94	31
Bupropion Xl	Bupropion Hcl	78	18
Famotidine	Famotidine	78	27
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	77	28
Finasteride	Finasteride	76	26
Zolpidem Tartrate	Zolpidem Tartrate	73	13
Methylprednisolone	Methylprednisolone	71	53
Pregabalin	Pregabalin	71	13
Azithromycin	Azithromycin	69	55
Fluticasone Propionate	Fluticasone Propionate	68	29
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	66	15
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	66	19
Buspirone Hcl	Buspirone Hcl	61	17
Lorazepam	Lorazepam	61	15
Montelukast Sodium	Montelukast Sodium	61	19
Ropinirole Hcl	Ropinirole Hcl	60	12
Citalopram Hbr	Citalopram Hydrobromide	59	19
Clonidine Hcl	Clonidine Hcl	54	19
Olmesartan Medoxomil	Olmesartan Medoxomil	50	14
Xarelto	Rivaroxaban	50	13
Glipizide Er	Glipizide	49	18
Estradiol	Estradiol	47	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	47	12
Trulicity	Dulaglutide	45	11
Alendronate Sodium	Alendronate Sodium	44	13
Sertraline Hcl	Sertraline Hcl	44	19
Glipizide	Glipizide	43	14
Memantine Hcl	Memantine Hcl	42	11
Esomeprazole Magnesium	Esomeprazole Magnesium	41	15
Glimepiride	Glimepiride	41	11
Hydroxyzine Hcl	Hydroxyzine Hcl	41	suppressed
Celecoxib	Celecoxib	40	15
Jardiance	Empagliflozin	39	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	39	14
Fluoxetine Hcl	Fluoxetine Hcl	38	suppressed
Ibuprofen	Ibuprofen	38	17
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	38	29
Tresiba Flextouch U-100	Insulin Degludec	38	11
Cephalexin	Cephalexin	37	23
Lansoprazole	Lansoprazole	37	12
Lovastatin	Lovastatin	37	11
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	35	12
Ibandronate Sodium	Ibandronate Sodium	35	15
Ezetimibe	Ezetimibe	34	suppressed
Meclizine Hcl	Meclizine Hcl	34	18
Prednisone	Prednisone	34	20
Venlafaxine Hcl Er	Venlafaxine Hcl	34	suppressed
Warfarin Sodium	Warfarin Sodium	33	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	32	11
Spironolactone	Spironolactone	31	suppressed
Chlorthalidone	Chlorthalidone	30	11
Levemir Flexpen	Insulin Detemir	30	suppressed
Terazosin Hcl	Terazosin Hcl	30	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	30	suppressed
Bumetanide	Bumetanide	29	suppressed
Rabeprazole Sodium	Rabeprazole Sodium	29	suppressed
Symbicort	Budesonide/Formoterol Fumarate	29	suppressed
Ventolin Hfa	Albuterol Sulfate	29	suppressed
Tizanidine Hcl	Tizanidine Hcl	28	14
Bupropion Hcl Sr	Bupropion Hcl	27	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	26	suppressed
Indapamide	Indapamide	26	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	25	suppressed
Piroxicam	Piroxicam	25	17
Valsartan	Valsartan	25	suppressed
Clonazepam	Clonazepam	24	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	24	suppressed
Januvia	Sitagliptin Phosphate	24	suppressed
Diclofenac Sodium	Diclofenac Sodium	23	14
Doxazosin Mesylate	Doxazosin Mesylate	23	suppressed
Fluconazole	Fluconazole	23	19
Doxycycline Monohydrate	Doxycycline Monohydrate	22	17
Farxiga	Dapagliflozin Propanediol	21	suppressed
Mounjaro	Tirzepatide	21	suppressed
Naproxen	Naproxen	21	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	21	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	21	suppressed
Clobetasol Propionate	Clobetasol Propionate	20	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	20	14
Nortriptyline Hcl	Nortriptyline Hcl	20	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	20	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	19	suppressed
Gemfibrozil	Gemfibrozil	19	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	18	suppressed
Myrbetriq	Mirabegron	18	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	17	14
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	17	suppressed
Ondansetron Odt	Ondansetron	17	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	17	suppressed
Synthroid	Levothyroxine Sodium	17	suppressed
Baclofen	Baclofen	16	suppressed
Dutasteride-Tamsulosin	Dutasteride/Tamsulosin Hcl	16	suppressed
Humulin N	Insulin Nph Human Isophane	16	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Nitroglycerin	Nitroglycerin	15	11
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	15	suppressed
Ondansetron Hcl	Ondansetron Hcl	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	12
Armour Thyroid	Thyroid,pork	14	suppressed
Arnuity Ellipta	Fluticasone Furoate	14	suppressed
Enalapril Maleate	Enalapril Maleate	14	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	14	suppressed
Meloxicam	Meloxicam	14	suppressed
Propranolol Hcl Er	Propranolol Hcl	14	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	13	suppressed
Livalo	Pitavastatin Calcium	13	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	13	suppressed
Propranolol Hcl	Propranolol Hcl	13	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	13	suppressed
Tramadol Hcl-Acetaminophen	Tramadol Hcl/Acetaminophen	13	suppressed
Trimethoprim	Trimethoprim	13	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	12	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	12	suppressed
Guanfacine Hcl	Guanfacine Hcl	12	suppressed
Jantoven	Warfarin Sodium	12	suppressed
Nexium	Esomeprazole Magnesium	12	suppressed
Novolog Flexpen	Insulin Aspart	12	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	12	suppressed
Pitavastatin Calcium	Pitavastatin Calcium	12	suppressed
Solifenacin Succinate	Solifenacin Succinate	12	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	12	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	11	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	11	suppressed
Mirtazapine	Mirtazapine	11	suppressed
Novolin N	Insulin Nph Human Isophane	11	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	11	suppressed
Raloxifene Hcl	Raloxifene Hcl	11	suppressed
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	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