Healthcare provider profile · identity verified

David M. Johnson, MD

Internal Medicine · LITTLE RIVER, SC · NPI 1790705796

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	536	169
Amlodipine Besylate	Amlodipine Besylate	478	150
Rosuvastatin Calcium	Rosuvastatin Calcium	388	122
Levothyroxine Sodium	Levothyroxine Sodium	344	97
Losartan Potassium	Losartan Potassium	339	109
Lisinopril	Lisinopril	297	93
Alprazolam	Alprazolam	255	42
Hydrochlorothiazide	Hydrochlorothiazide	212	72
Omeprazole	Omeprazole	212	69
Metformin Hcl	Metformin Hcl	210	70
Gabapentin	Gabapentin	185	58
Zolpidem Tartrate	Zolpidem Tartrate	171	47
Pioglitazone Hcl	Pioglitazone Hcl	169	59
Pantoprazole Sodium	Pantoprazole Sodium	164	61
Trazodone Hcl	Trazodone Hcl	152	52
Ezetimibe	Ezetimibe	145	55
Carvedilol	Carvedilol	139	47
Tamsulosin Hcl	Tamsulosin Hcl	139	46
Metoprolol Succinate	Metoprolol Succinate	129	47
Eliquis	Apixaban	115	23
Prednisone	Prednisone	110	89
Tramadol Hcl	Tramadol Hcl	110	26
Lorazepam	Lorazepam	109	17
Furosemide	Furosemide	105	36
Pravastatin Sodium	Pravastatin Sodium	104	30
Simvastatin	Simvastatin	103	30
Duloxetine Hcl	Duloxetine Hcl	100	28
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	95	73
Celecoxib	Celecoxib	94	31
Albuterol Sulfate Hfa	Albuterol Sulfate	88	28
Metoprolol Tartrate	Metoprolol Tartrate	83	28
Escitalopram Oxalate	Escitalopram Oxalate	81	32
Januvia	Sitagliptin Phosphate	79	19
Meloxicam	Meloxicam	76	28
Allopurinol	Allopurinol	75	23
Valsartan	Valsartan	74	31
Diazepam	Diazepam	72	11
Alendronate Sodium	Alendronate Sodium	70	24
Montelukast Sodium	Montelukast Sodium	70	26
Clopidogrel	Clopidogrel Bisulfate	66	22
Hydralazine Hcl	Hydralazine Hcl	66	23
Clonazepam	Clonazepam	62	12
Sertraline Hcl	Sertraline Hcl	62	22
Jardiance	Empagliflozin	61	14
Buspirone Hcl	Buspirone Hcl	58	21
Tizanidine Hcl	Tizanidine Hcl	57	29
Potassium Chloride	Potassium Chloride	55	19
Fluticasone Propionate	Fluticasone Propionate	52	20
Metformin Hcl Er	Metformin Hcl	50	22
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	48	15
Atenolol	Atenolol	45	15
Fenofibrate	Fenofibrate	45	13
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	43	suppressed
Temazepam	Temazepam	43	12
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	41	suppressed
Famotidine	Famotidine	41	17
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	41	24
Citalopram Hbr	Citalopram Hydrobromide	40	13
Pregabalin	Pregabalin	39	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	38	11
Clonidine Hcl	Clonidine Hcl	37	suppressed
Finasteride	Finasteride	37	12
Spironolactone	Spironolactone	37	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	36	13
Synthroid	Levothyroxine Sodium	35	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	33	11
Paroxetine Hcl	Paroxetine Hcl	33	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	32	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	32	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	31	suppressed
Ramipril	Ramipril	31	suppressed
Ozempic	Semaglutide	30	suppressed
Donepezil Hcl	Donepezil Hcl	29	11
Isosorbide Mononitrate Er	Isosorbide Mononitrate	29	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	29	24
Xarelto	Rivaroxaban	29	suppressed
Estradiol	Estradiol	28	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	28	suppressed
Bupropion Xl	Bupropion Hcl	26	suppressed
Glimepiride	Glimepiride	26	suppressed
Chlorthalidone	Chlorthalidone	25	suppressed
Diclofenac Sodium	Diclofenac Sodium	25	suppressed
Valacyclovir	Valacyclovir Hcl	25	15
Esomeprazole Magnesium	Esomeprazole Magnesium	24	suppressed
Linzess	Linaclotide	24	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	23	suppressed
Ibuprofen	Ibuprofen	23	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	22	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	22	suppressed
Azithromycin	Azithromycin	21	20
Ondansetron Hcl	Ondansetron Hcl	21	15
Ropinirole Hcl	Ropinirole Hcl	21	suppressed
Telmisartan	Telmisartan	21	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	20	suppressed
Glipizide Er	Glipizide	20	suppressed
Mounjaro	Tirzepatide	20	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	20	16
Quetiapine Fumarate	Quetiapine Fumarate	20	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	18	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	18	suppressed
Glipizide	Glipizide	17	suppressed
Acyclovir	Acyclovir	16	suppressed
Farxiga	Dapagliflozin Propanediol	16	suppressed
Raloxifene Hcl	Raloxifene Hcl	16	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	15	suppressed
Fluconazole	Fluconazole	15	11
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	15	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	15	suppressed
Benazepril Hcl	Benazepril Hcl	14	suppressed
Diclofenac Potassium	Diclofenac Potassium	14	suppressed
Levetiracetam	Levetiracetam	14	suppressed
Nurtec Odt	Rimegepant Sulfate	14	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	13	11
Topiramate	Topiramate	13	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	13	suppressed
Baclofen	Baclofen	12	suppressed
Cephalexin	Cephalexin	12	12
Methotrexate	Methotrexate Sodium	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Testosterone Cypionate	Testosterone Cypionate	12	suppressed
Amlodipine-Valsartan	Amlodipine Besylate/Valsartan	11	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	11	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	11
Humalog Kwikpen U-100	Insulin Lispro	11	suppressed
Latanoprost	Latanoprost	11	suppressed
Propranolol Hcl	Propranolol Hcl	11	suppressed
Symbicort	Budesonide/Formoterol Fumarate	11	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	11	suppressed
Verapamil Er	Verapamil 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