Healthcare provider profile · identity verified

Bill Jack Parker, M.D.

Family Practice · NEWTON, NC · NPI 1407854441

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	509	120
Amlodipine Besylate	Amlodipine Besylate	452	112
Atorvastatin Calcium	Atorvastatin Calcium	409	108
Lisinopril	Lisinopril	311	70
Omeprazole	Omeprazole	287	76
Rosuvastatin Calcium	Rosuvastatin Calcium	278	81
Metformin Hcl	Metformin Hcl	247	59
Losartan Potassium	Losartan Potassium	239	61
Metoprolol Succinate	Metoprolol Succinate	234	57
Eliquis	Apixaban	197	28
Clonazepam	Clonazepam	195	42
Simvastatin	Simvastatin	187	46
Furosemide	Furosemide	172	41
Gabapentin	Gabapentin	171	46
Glimepiride	Glimepiride	164	39
Pantoprazole Sodium	Pantoprazole Sodium	164	50
Hydrochlorothiazide	Hydrochlorothiazide	158	44
Atenolol	Atenolol	144	39
Doxazosin Mesylate	Doxazosin Mesylate	138	34
Clopidogrel	Clopidogrel Bisulfate	129	34
Montelukast Sodium	Montelukast Sodium	128	36
Trazodone Hcl	Trazodone Hcl	122	35
Sertraline Hcl	Sertraline Hcl	113	26
Metoprolol Tartrate	Metoprolol Tartrate	103	30
Albuterol Sulfate Hfa	Albuterol Sulfate	88	35
Carvedilol	Carvedilol	86	22
Fluoxetine Hcl	Fluoxetine Hcl	86	15
Potassium Chloride	Potassium Chloride	84	20
Diclofenac Sodium	Diclofenac Sodium	80	25
Allopurinol	Allopurinol	79	16
Alprazolam	Alprazolam	79	14
Tamsulosin Hcl	Tamsulosin Hcl	77	24
Glipizide	Glipizide	71	12
Spironolactone	Spironolactone	69	18
Fluticasone Propionate	Fluticasone Propionate	66	23
Paroxetine Hcl	Paroxetine Hcl	65	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	63	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	63	19
Meloxicam	Meloxicam	63	19
Ondansetron Odt	Ondansetron	58	21
Venlafaxine Hcl Er	Venlafaxine Hcl	53	11
Glipizide Er	Glipizide	52	suppressed
Ezetimibe	Ezetimibe	51	23
Meclizine Hcl	Meclizine Hcl	50	27
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	50	35
Zolpidem Tartrate	Zolpidem Tartrate	50	12
Pregabalin	Pregabalin	49	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	47	suppressed
Buspirone Hcl	Buspirone Hcl	46	16
Bupropion Xl	Bupropion Hcl	45	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	45	23
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	45	suppressed
Amoxicillin	Amoxicillin	44	36
Enalapril Maleate	Enalapril Maleate	43	suppressed
Propranolol Hcl	Propranolol Hcl	43	11
Cephalexin	Cephalexin	42	27
Hydralazine Hcl	Hydralazine Hcl	42	15
Pravastatin Sodium	Pravastatin Sodium	42	14
Lovastatin	Lovastatin	41	11
Promethazine Hcl	Promethazine Hcl	41	suppressed
Duloxetine Hcl	Duloxetine Hcl	40	suppressed
Citalopram Hbr	Citalopram Hydrobromide	38	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	38	11
Fenofibrate	Fenofibrate,micronized	38	suppressed
Ozempic	Semaglutide	38	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	37	13
Atenolol-Chlorthalidone	Atenolol/Chlorthalidone	35	11
Symbicort	Budesonide/Formoterol Fumarate	35	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	35	suppressed
Januvia	Sitagliptin Phosphate	34	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	33	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	32	suppressed
Benazepril Hcl	Benazepril Hcl	31	suppressed
Prednisone	Prednisone	31	18
Clonidine Hcl	Clonidine Hcl	30	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	30	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	28	13
Esomeprazole Magnesium	Esomeprazole Magnesium	28	suppressed
Nifedipine Er	Nifedipine	27	suppressed
Terazosin Hcl	Terazosin Hcl	27	suppressed
Azithromycin	Azithromycin	26	23
Mounjaro	Tirzepatide	26	suppressed
Tizanidine Hcl	Tizanidine Hcl	26	suppressed
Xarelto	Rivaroxaban	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	24	16
Isosorbide Mononitrate Er	Isosorbide Mononitrate	24	suppressed
Jardiance	Empagliflozin	24	suppressed
Synthroid	Levothyroxine Sodium	24	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	23	19
Valsartan	Valsartan	23	suppressed
Warfarin Sodium	Warfarin Sodium	22	suppressed
Finasteride	Finasteride	21	suppressed
Lorazepam	Lorazepam	21	suppressed
Mirtazapine	Mirtazapine	21	suppressed
Celecoxib	Celecoxib	20	suppressed
Labetalol Hcl	Labetalol Hcl	20	suppressed
Tramadol Hcl	Tramadol Hcl	20	suppressed
Budesonide-Formoterol Fumarate	Budesonide/Formoterol Fumarate	19	suppressed
Famotidine	Famotidine	19	suppressed
Fenofibrate	Fenofibrate	19	suppressed
Flecainide Acetate	Flecainide Acetate	19	suppressed
Gemfibrozil	Gemfibrozil	19	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	19	suppressed
Ibandronate Sodium	Ibandronate Sodium	18	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	18	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	18	suppressed
Fluconazole	Fluconazole	17	suppressed
Estradiol	Estradiol	16	suppressed
Humulin R U-500 Kwikpen	Insulin Regular, Human	16	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	16	suppressed
Ropinirole Hcl	Ropinirole Hcl	16	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	16	suppressed
Valacyclovir	Valacyclovir Hcl	16	suppressed
Atrovent Hfa	Ipratropium Bromide	15	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	15	11
Colchicine	Colchicine	15	suppressed
Torsemide	Torsemide	15	suppressed
Chlorthalidone	Chlorthalidone	14	suppressed
Divalproex Sodium	Divalproex Sodium	14	suppressed
Ibu	Ibuprofen	14	suppressed
Ibuprofen	Ibuprofen	14	suppressed
Linzess	Linaclotide	14	suppressed
Nystatin	Nystatin	14	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Cefdinir	Cefdinir	13	11
Myrbetriq	Mirabegron	13	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	13	suppressed
Irbesartan	Irbesartan	12	suppressed
Nadolol	Nadolol	12	suppressed
Rybelsus	Semaglutide	12	suppressed
Temazepam	Temazepam	12	suppressed
Verapamil Er	Verapamil Hcl	12	suppressed
Farxiga	Dapagliflozin Propanediol	11	suppressed
Humalog Mix 75-25 Kwikpen	Insulin Lispro Protamin/Lispro	11	suppressed
Isosorbide Mononitrate	Isosorbide Mononitrate	11	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	11	suppressed
Metformin Hcl Er	Metformin Hcl	11	suppressed
Novolin R Flexpen	Insulin Regular, Human	11	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	11	suppressed
Varenicline Tartrate	Varenicline Tartrate	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