Healthcare provider profile · identity verified

Ivey Williamson, MD

Internal Medicine · SIGNAL MOUNTAIN, TN · NPI 1942274394

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	691	208
Rosuvastatin Calcium	Rosuvastatin Calcium	557	187
Amlodipine Besylate	Amlodipine Besylate	485	153
Levothyroxine Sodium	Levothyroxine Sodium	478	139
Lisinopril	Lisinopril	313	103
Omeprazole	Omeprazole	270	92
Valsartan	Valsartan	239	72
Losartan Potassium	Losartan Potassium	184	54
Pantoprazole Sodium	Pantoprazole Sodium	166	54
Gabapentin	Gabapentin	161	44
Spironolactone	Spironolactone	157	49
Tamsulosin Hcl	Tamsulosin Hcl	154	53
Olmesartan Medoxomil	Olmesartan Medoxomil	153	52
Metformin Hcl Er	Metformin Hcl	150	54
Metformin Hcl	Metformin Hcl	148	45
Metoprolol Succinate	Metoprolol Succinate	135	42
Hydrochlorothiazide	Hydrochlorothiazide	130	44
Escitalopram Oxalate	Escitalopram Oxalate	129	45
Allopurinol	Allopurinol	120	36
Potassium Chloride	Potassium Chloride	110	44
Duloxetine Hcl	Duloxetine Hcl	106	33
Eliquis	Apixaban	101	25
Glimepiride	Glimepiride	101	33
Clopidogrel	Clopidogrel Bisulfate	97	30
Trazodone Hcl	Trazodone Hcl	95	25
Clonazepam	Clonazepam	94	16
Fluticasone Propionate	Fluticasone Propionate	93	38
Atenolol	Atenolol	91	32
Ozempic	Semaglutide	91	15
Simvastatin	Simvastatin	85	23
Lorazepam	Lorazepam	84	17
Pravastatin Sodium	Pravastatin Sodium	84	27
Metoprolol Tartrate	Metoprolol Tartrate	81	25
Sertraline Hcl	Sertraline Hcl	78	29
Montelukast Sodium	Montelukast Sodium	76	27
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	74	17
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	71	22
Esomeprazole Magnesium	Esomeprazole Magnesium	70	28
Zolpidem Tartrate	Zolpidem Tartrate	69	17
Finasteride	Finasteride	66	19
Meloxicam	Meloxicam	61	23
Tramadol Hcl	Tramadol Hcl	61	14
Bupropion Xl	Bupropion Hcl	60	20
Albuterol Sulfate Hfa	Albuterol Sulfate	59	25
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	56	19
Estradiol	Estradiol	55	17
Glipizide	Glipizide	55	20
Prednisone	Prednisone	55	43
Nebivolol Hcl	Nebivolol Hcl	54	15
Venlafaxine Hcl Er	Venlafaxine Hcl	54	17
Furosemide	Furosemide	53	25
Carvedilol	Carvedilol	51	19
Famotidine	Famotidine	50	19
Synthroid	Levothyroxine Sodium	50	15
Alprazolam	Alprazolam	45	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	42	14
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	37	suppressed
Alendronate Sodium	Alendronate Sodium	36	13
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	36	suppressed
Ondansetron Odt	Ondansetron	36	15
Pioglitazone Hcl	Pioglitazone Hcl	35	16
Ezetimibe	Ezetimibe	33	13
Quetiapine Fumarate	Quetiapine Fumarate	33	suppressed
Propranolol Hcl	Propranolol Hcl	32	suppressed
Trulicity	Dulaglutide	32	suppressed
Propranolol Hcl Er	Propranolol Hcl	31	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	30	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	30	suppressed
Novolin N	Insulin Nph Human Isophane	30	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	29	28
Irbesartan	Irbesartan	29	suppressed
Memantine Hcl	Memantine Hcl	26	suppressed
Citalopram Hbr	Citalopram Hydrobromide	25	suppressed
Mirtazapine	Mirtazapine	25	suppressed
Buspirone Hcl	Buspirone Hcl	22	suppressed
Oxycodone Hcl	Oxycodone Hcl	22	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	22	suppressed
Benazepril Hcl	Benazepril Hcl	21	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Fenofibrate	Fenofibrate,micronized	21	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	21	suppressed
Ropinirole Hcl	Ropinirole Hcl	21	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	20	suppressed
Baclofen	Baclofen	19	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	19	suppressed
Warfarin Sodium	Warfarin Sodium	19	suppressed
Valacyclovir	Valacyclovir Hcl	18	13
Xarelto	Rivaroxaban	18	suppressed
Aripiprazole	Aripiprazole	17	suppressed
Bupropion Hcl Sr	Bupropion Hcl	17	suppressed
Chlorthalidone	Chlorthalidone	17	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	17	suppressed
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Levofloxacin	Levofloxacin	17	14
Tizanidine Hcl	Tizanidine Hcl	17	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	17	suppressed
Candesartan Cilexetil	Candesartan Cilexetil	16	suppressed
Colchicine	Colchicine	16	suppressed
Lansoprazole	Lansoprazole	16	suppressed
Paroxetine Hcl	Paroxetine Hcl	15	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	14	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	14	suppressed
Donepezil Hcl	Donepezil Hcl	14	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	14	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	14	suppressed
Solifenacin Succinate	Solifenacin Succinate	14	suppressed
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	13	suppressed
Benazepril-Hydrochlorothiazide	Benazepril/Hydrochlorothiazide	13	suppressed
Celecoxib	Celecoxib	13	suppressed
Doxepin Hcl	Doxepin Hcl	13	suppressed
Fenofibrate	Fenofibrate	13	suppressed
Memantine Hcl Er	Memantine Hcl	13	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	13	12
Ramipril	Ramipril	13	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	13	suppressed
Methocarbamol	Methocarbamol	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	12	suppressed
Probenecid	Probenecid	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Clonidine Hcl	Clonidine Hcl	11	suppressed
Enalapril Maleate	Enalapril Maleate	11	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	11	suppressed
Novolog	Insulin Aspart	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