Healthcare provider profile · identity verified

Mark Warren Mcmanus, MD

Family Practice · MORGANTON, NC · NPI 1558304097

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
Hydrochlorothiazide	Hydrochlorothiazide	400	90
Omeprazole	Omeprazole	383	92
Atorvastatin Calcium	Atorvastatin Calcium	369	100
Lisinopril	Lisinopril	367	85
Metformin Hcl	Metformin Hcl	334	73
Levothyroxine Sodium	Levothyroxine Sodium	322	72
Amlodipine Besylate	Amlodipine Besylate	311	70
Losartan Potassium	Losartan Potassium	310	73
Rosuvastatin Calcium	Rosuvastatin Calcium	286	60
Pantoprazole Sodium	Pantoprazole Sodium	258	57
Tamsulosin Hcl	Tamsulosin Hcl	215	57
Pioglitazone Hcl	Pioglitazone Hcl	214	39
Metoprolol Tartrate	Metoprolol Tartrate	206	44
Jardiance	Empagliflozin	204	40
Montelukast Sodium	Montelukast Sodium	161	29
Metoprolol Succinate	Metoprolol Succinate	153	42
Duloxetine Hcl	Duloxetine Hcl	148	27
Albuterol Sulfate Hfa	Albuterol Sulfate	144	39
Furosemide	Furosemide	144	34
Glipizide	Glipizide	141	27
Simvastatin	Simvastatin	138	32
Gabapentin	Gabapentin	128	38
Eliquis	Apixaban	117	27
Prednisone	Prednisone	114	74
Allopurinol	Allopurinol	110	25
Fluticasone Propionate	Fluticasone Propionate	106	37
Lovastatin	Lovastatin	103	29
Azelastine Hcl	Azelastine Hcl	101	39
Diclofenac Sodium	Diclofenac Sodium	101	39
Potassium Chloride	Potassium Chloride	95	28
Bupropion Xl	Bupropion Hcl	94	12
Pravastatin Sodium	Pravastatin Sodium	87	18
Synthroid	Levothyroxine Sodium	78	17
Paroxetine Hcl	Paroxetine Hcl	77	19
Sertraline Hcl	Sertraline Hcl	75	18
Meloxicam	Meloxicam	73	18
Venlafaxine Hcl Er	Venlafaxine Hcl	71	16
Glyburide	Glyburide	69	13
Ozempic	Semaglutide	69	17
Trazodone Hcl	Trazodone Hcl	69	20
Fluoxetine Hcl	Fluoxetine Hcl	68	14
Finasteride	Finasteride	66	14
Pregabalin	Pregabalin	65	17
Celecoxib	Celecoxib	64	16
Amitriptyline Hcl	Amitriptyline Hcl	56	12
Spironolactone	Spironolactone	55	16
Escitalopram Oxalate	Escitalopram Oxalate	53	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	52	12
Metformin Hcl Er	Metformin Hcl	51	12
Carvedilol	Carvedilol	49	18
Enalapril Maleate	Enalapril Maleate	49	suppressed
Fosinopril Sodium	Fosinopril Sodium	49	suppressed
Januvia	Sitagliptin Phosphate	49	suppressed
Tramadol Hcl	Tramadol Hcl	48	19
Warfarin Sodium	Warfarin Sodium	48	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	44	15
Esomeprazole Magnesium	Esomeprazole Magnesium	43	suppressed
Citalopram Hbr	Citalopram Hydrobromide	42	11
Doxycycline Hyclate	Doxycycline Hyclate	41	36
Clopidogrel	Clopidogrel Bisulfate	40	13
Azithromycin	Azithromycin	39	32
Ropinirole Hcl	Ropinirole Hcl	38	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	35	13
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	35	suppressed
Doxepin Hcl	Doxepin Hcl	34	suppressed
Invokana	Canagliflozin	34	suppressed
Ezetimibe	Ezetimibe	33	suppressed
Famotidine	Famotidine	33	11
Testosterone Cypionate	Testosterone Cypionate	33	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	33	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	31	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	30	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	29	suppressed
Mirtazapine	Mirtazapine	29	suppressed
Mounjaro	Tirzepatide	29	suppressed
Verapamil Er	Verapamil Hcl	29	suppressed
Rybelsus	Semaglutide	27	suppressed
Alendronate Sodium	Alendronate Sodium	25	suppressed
Atenolol	Atenolol	25	suppressed
Benazepril Hcl	Benazepril Hcl	25	suppressed
Lansoprazole	Lansoprazole	25	suppressed
Valsartan	Valsartan	25	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	24	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	24	suppressed
Gemfibrozil	Gemfibrozil	23	suppressed
Glimepiride	Glimepiride	21	suppressed
Megestrol Acetate	Megestrol Acetate	21	suppressed
Xarelto	Rivaroxaban	21	suppressed
Dropsafe Prep Pads	Alcohol Antiseptic Pads	20	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	20	suppressed
Nebivolol Hcl	Nebivolol Hcl	20	suppressed
Symbicort	Budesonide/Formoterol Fumarate	20	suppressed
Nabumetone	Nabumetone	18	suppressed
Breztri Aerosphere	Budesonide/Glycopyr/Formoterol	17	suppressed
Cephalexin	Cephalexin	17	15
Oxybutynin Chloride Er	Oxybutynin Chloride	17	suppressed
Buspirone Hcl	Buspirone Hcl	16	suppressed
Farxiga	Dapagliflozin Propanediol	16	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	16	suppressed
Chlorthalidone	Chlorthalidone	15	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	15	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	15	suppressed
Clindamycin Phosphate	Clindamycin Phosphate	14	suppressed
Colestipol Hcl	Colestipol Hcl	14	suppressed
Fenofibrate	Fenofibrate,micronized	14	suppressed
Fluconazole	Fluconazole	14	suppressed
Telmisartan	Telmisartan	14	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	14	suppressed
Clonazepam	Clonazepam	13	suppressed
Colchicine	Colchicine	13	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	13	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	13	suppressed
Premarin	Estrogens, Conjugated	13	suppressed
Propranolol Hcl	Propranolol Hcl	13	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	12	suppressed
Alprazolam	Alprazolam	12	suppressed
Candesartan-Hydrochlorothiazid	Candesartan/Hydrochlorothiazid	12	suppressed
Clonidine Hcl	Clonidine Hcl	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
M-Natal Plus	Pnv,calcium 72/Iron/Folic Acid	12	suppressed
Ramipril	Ramipril	12	suppressed
Irbesartan	Irbesartan	11	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	11	11
Quetiapine Fumarate	Quetiapine Fumarate	11	suppressed
Trulicity	Dulaglutide	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