Healthcare provider profile · identity verified

Peter H Viall, MD

Family Practice · BELLAIRE, MI · NPI 1265403679

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	341	45
Atorvastatin Calcium	Atorvastatin Calcium	326	49
Eliquis	Apixaban	283	23
Amlodipine Besylate	Amlodipine Besylate	201	37
Gabapentin	Gabapentin	186	34
Furosemide	Furosemide	180	28
Trazodone Hcl	Trazodone Hcl	177	33
Duloxetine Hcl	Duloxetine Hcl	172	28
Pantoprazole Sodium	Pantoprazole Sodium	168	26
Losartan Potassium	Losartan Potassium	163	25
Lorazepam	Lorazepam	161	51
Potassium Chloride	Potassium Chloride	158	29
Omeprazole	Omeprazole	155	31
Pregabalin	Pregabalin	149	23
Metoprolol Succinate	Metoprolol Succinate	134	26
Quetiapine Fumarate	Quetiapine Fumarate	131	18
Escitalopram Oxalate	Escitalopram Oxalate	129	26
Sertraline Hcl	Sertraline Hcl	127	25
Divalproex Sodium	Divalproex Sodium	123	22
Diclofenac Sodium	Diclofenac Sodium	121	24
Tramadol Hcl	Tramadol Hcl	120	37
Tamsulosin Hcl	Tamsulosin Hcl	119	21
Metformin Hcl	Metformin Hcl	117	16
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	102	26
Clopidogrel	Clopidogrel Bisulfate	98	19
Bumetanide	Bumetanide	94	16
Levetiracetam	Levetiracetam	90	15
Spironolactone	Spironolactone	89	13
Lactulose	Lactulose	86	suppressed
Risperidone	Risperidone	80	14
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	79	22
Topiramate	Topiramate	79	suppressed
Buspirone Hcl	Buspirone Hcl	77	13
Metoprolol Tartrate	Metoprolol Tartrate	76	14
Lantus	Insulin Glargine,hum.Rec.Anlog	74	11
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	71	suppressed
Prednisone	Prednisone	69	16
Oxycodone Hcl	Oxycodone Hcl	66	18
Baclofen	Baclofen	61	suppressed
Lisinopril	Lisinopril	61	16
Carvedilol	Carvedilol	58	suppressed
Jardiance	Empagliflozin	55	suppressed
Mirtazapine	Mirtazapine	53	17
Nystatin	Nystatin	53	24
Fluvoxamine Maleate	Fluvoxamine Maleate	52	suppressed
Alprazolam	Alprazolam	50	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	50	11
Fluoxetine Hcl	Fluoxetine Hcl	49	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	45	suppressed
Bupropion Xl	Bupropion Hcl	44	suppressed
Midodrine Hcl	Midodrine Hcl	42	suppressed
Donepezil Hcl	Donepezil Hcl	39	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	39	suppressed
Morphine Sulfate	Morphine Sulfate	39	20
Pravastatin Sodium	Pravastatin Sodium	36	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	35	26
Citalopram Hbr	Citalopram Hydrobromide	34	suppressed
Farxiga	Dapagliflozin Propanediol	34	suppressed
Memantine Hcl	Memantine Hcl	34	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	33	suppressed
Paroxetine Hcl	Paroxetine Hcl	33	suppressed
Xarelto	Rivaroxaban	33	suppressed
Warfarin Sodium	Warfarin Sodium	32	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	31	suppressed
Fluticasone Propionate	Fluticasone Propionate	28	suppressed
Allopurinol	Allopurinol	26	suppressed
Fentanyl	Fentanyl	26	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	26	suppressed
Nuedexta	Dextromethorphan Hbr/Quinidine	26	suppressed
Hydralazine Hcl	Hydralazine Hcl	25	suppressed
Olanzapine	Olanzapine	25	suppressed
Trulicity	Dulaglutide	25	suppressed
Entresto	Sacubitril/Valsartan	23	suppressed
Famotidine	Famotidine	23	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	23	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Colchicine	Colchicine	21	suppressed
Ondansetron Hcl	Ondansetron Hcl	21	14
Paliperidone Er	Paliperidone	21	suppressed
Amiodarone Hcl	Amiodarone Hcl	20	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	20	suppressed
Morphine Sulfate Er	Morphine Sulfate	20	suppressed
Chlorthalidone	Chlorthalidone	19	suppressed
Haloperidol	Haloperidol	19	suppressed
Insulin Lispro	Insulin Lispro	19	suppressed
Buprenorphine	Buprenorphine	18	suppressed
Cephalexin	Cephalexin	18	14
Clonidine Hcl	Clonidine Hcl	18	suppressed
Diazepam	Diazepam	18	suppressed
Finasteride	Finasteride	17	suppressed
Ketoconazole	Ketoconazole	17	suppressed
Lacosamide	Lacosamide	17	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	17	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	16	suppressed
Atenolol	Atenolol	16	suppressed
Atropine Sulfate	Atropine Sulfate	16	15
Doxycycline Hyclate	Doxycycline Hyclate	16	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	16	suppressed
Primidone	Primidone	16	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	16	suppressed
Lidocaine Hcl	Lidocaine Hcl	15	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	15	suppressed
Amantadine	Amantadine Hcl	14	suppressed
Cholestyramine	Cholestyramine (With Sugar)	14	suppressed
Myrbetriq	Mirabegron	14	suppressed
Tizanidine Hcl	Tizanidine Hcl	14	suppressed
Tresiba Flextouch U-100	Insulin Degludec	14	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	14	suppressed
Vraylar	Cariprazine Hcl	14	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	13	suppressed
Enbrel	Etanercept	12	suppressed
Glycopyrrolate	Glycopyrrolate	12	suppressed
Latanoprost	Latanoprost	12	suppressed
Methenamine Hippurate	Methenamine Hippurate	12	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	12	suppressed
Sucralfate	Sucralfate	12	suppressed
Vancomycin Hcl	Vancomycin Hcl	12	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	11	suppressed
Lansoprazole	Lansoprazole	11	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	11	suppressed
Tamoxifen Citrate	Tamoxifen Citrate	11	suppressed
Timolol Maleate	Timolol Maleate	11	suppressed
Valacyclovir	Valacyclovir 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