Healthcare provider profile · identity verified

Christopher M Chappel, MD

Allopathic & Osteopathic Physicians|Family Medicine · KISSIMMEE, FL · NPI 1174589469

Profile state: payments and partd 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

CMS Open Payments records show Christopher M Chappel, MD received $31.29 in general payments during 2025 across 1 reported records.

Cipher Pharmaceuticals US LLC accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$31.29

1 reported records · 1 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported company	Canonical company	Amount	Share	Records	Year
Cipher Pharmaceuticals US LLC	Unresolved — no canonical attribution shown	$31.29	100.0%	1	2025

What were the payments for?

Payment categories

Category	Amount	Records
Food and Beverage	$31.29	1

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported product	Type	Reported company	Related amount*	Records	Year
Natroba Normalized: natroba	Drug	Cipher Pharmaceuticals US LLC	$31.29	1	2025
Source payment records 2025-12-17 · Cipher Pharmaceuticals US LLC · $31.29 · Open Payments source
Spinosad Normalized: spinosad	Drug	Cipher Pharmaceuticals US LLC	$31.29	1	2025
Source payment records 2025-12-17 · Cipher Pharmaceuticals US LLC · $31.29 · Open Payments source

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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	1450	227
Levothyroxine Sodium	Levothyroxine Sodium	1066	143
Gabapentin	Gabapentin	927	147
Metformin Hcl	Metformin Hcl	922	141
Eliquis	Apixaban	899	110
Furosemide	Furosemide	893	153
Amlodipine Besylate	Amlodipine Besylate	851	144
Lisinopril	Lisinopril	816	120
Losartan Potassium	Losartan Potassium	706	128
Donepezil Hcl	Donepezil Hcl	669	104
Sertraline Hcl	Sertraline Hcl	659	118
Rosuvastatin Calcium	Rosuvastatin Calcium	600	91
Trazodone Hcl	Trazodone Hcl	587	102
Tamsulosin Hcl	Tamsulosin Hcl	558	80
Tramadol Hcl	Tramadol Hcl	501	96
Memantine Hcl	Memantine Hcl	490	66
Metoprolol Tartrate	Metoprolol Tartrate	483	84
Mirtazapine	Mirtazapine	463	108
Famotidine	Famotidine	454	88
Buspirone Hcl	Buspirone Hcl	442	86
Meloxicam	Meloxicam	437	67
Carvedilol	Carvedilol	432	71
Divalproex Sodium	Divalproex Sodium	428	71
Metoprolol Succinate	Metoprolol Succinate	409	74
Lactulose	Lactulose	408	62
Pantoprazole Sodium	Pantoprazole Sodium	406	78
Januvia	Sitagliptin Phosphate	391	46
Potassium Chloride	Potassium Chloride	390	74
Clopidogrel	Clopidogrel Bisulfate	351	53
Levetiracetam	Levetiracetam	291	36
Jardiance	Empagliflozin	286	32
Duloxetine Hcl	Duloxetine Hcl	284	47
Quetiapine Fumarate	Quetiapine Fumarate	247	38
Escitalopram Oxalate	Escitalopram Oxalate	226	44
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	219	43
Lorazepam	Lorazepam	218	42
Omeprazole	Omeprazole	215	45
Pregabalin	Pregabalin	215	21
Spironolactone	Spironolactone	212	37
Alprazolam	Alprazolam	206	21
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	206	30
Hydralazine Hcl	Hydralazine Hcl	204	42
Simvastatin	Simvastatin	204	31
Latanoprost	Latanoprost	175	32
Baclofen	Baclofen	168	23
Xarelto	Rivaroxaban	167	18
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	156	26
Montelukast Sodium	Montelukast Sodium	152	31
Bydureon Bcise	Exenatide Microspheres	150	22
Diclofenac Sodium	Diclofenac Sodium	146	41
Finasteride	Finasteride	144	24
Alendronate Sodium	Alendronate Sodium	143	25
Prednisone	Prednisone	138	64
Fluoxetine Hcl	Fluoxetine Hcl	135	22
Allopurinol	Allopurinol	134	25
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	134	25
Oxybutynin Chloride Er	Oxybutynin Chloride	132	16
Midodrine Hcl	Midodrine Hcl	130	24
Isosorbide Mononitrate Er	Isosorbide Mononitrate	128	22
Clonidine Hcl	Clonidine Hcl	125	24
Temazepam	Temazepam	125	27
Citalopram Hbr	Citalopram Hydrobromide	124	21
Ipratropium-Albuterol	Ipratropium/Albuterol Sulfate	122	59
Risperidone	Risperidone	122	15
Fluticasone Propionate	Fluticasone Propionate	117	30
Clonazepam	Clonazepam	114	19
Triamcinolone Acetonide	Triamcinolone Acetonide	111	60
Ondansetron Hcl	Ondansetron Hcl	109	48
Doxycycline Hyclate	Doxycycline Hyclate	108	59
Pravastatin Sodium	Pravastatin Sodium	105	15
Ropinirole Hcl	Ropinirole Hcl	103	13
Trulicity	Dulaglutide	103	16
Carbidopa-Levodopa	Carbidopa/Levodopa	96	15
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	96	52
Zolpidem Tartrate	Zolpidem Tartrate	96	15
Bumetanide	Bumetanide	94	15
Sucralfate	Sucralfate	93	17
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	92	22
Oxycodone Hcl	Oxycodone Hcl	92	18
Amiodarone Hcl	Amiodarone Hcl	86	18
Nystatin	Nystatin	86	48
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	86	50
Paroxetine Hcl	Paroxetine Hcl	84	14
Ciprofloxacin Hcl	Ciprofloxacin Hcl	83	54
Methenamine Hippurate	Methenamine Hippurate	75	11
Olanzapine	Olanzapine	73	12
Xifaxan	Rifaximin	73	suppressed
Warfarin Sodium	Warfarin Sodium	71	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	68	13
Dicyclomine Hcl	Dicyclomine Hcl	67	12
Combivent Respimat	Ipratropium/Albuterol Sulfate	66	12
Ranolazine Er	Ranolazine	66	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	65	15
Albuterol Sulfate Hfa	Albuterol Sulfate	64	34
Oxcarbazepine	Oxcarbazepine	64	suppressed
Methocarbamol	Methocarbamol	63	23
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	62	29
Topiramate	Topiramate	62	suppressed
Levofloxacin	Levofloxacin	60	44
Celecoxib	Celecoxib	58	suppressed
Gemtesa	Vibegron	58	suppressed
Bupropion Xl	Bupropion Hcl	56	suppressed
Myrbetriq	Mirabegron	55	suppressed
Bupropion Hcl Sr	Bupropion Hcl	54	12
Hydroxyzine Hcl	Hydroxyzine Hcl	54	24
Nuedexta	Dextromethorphan Hbr/Quinidine	54	suppressed
Amantadine	Amantadine Hcl	53	suppressed
Breo Ellipta	Fluticasone/Vilanterol	53	12
Gentamicin Sulfate	Gentamicin Sulfate	53	33
Ivermectin	Ivermectin	53	33
Digoxin	Digoxin	52	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	51	suppressed
Entresto	Sacubitril/Valsartan	50	suppressed
Ezetimibe	Ezetimibe	50	11
Symbicort	Budesonide/Formoterol Fumarate	50	suppressed
Primidone	Primidone	49	suppressed
Tizanidine Hcl	Tizanidine Hcl	48	11
Valproic Acid	Valproic Acid (As Sodium Salt)	48	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	46	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	46	suppressed
Ceftriaxone	Ceftriaxone Sodium	45	17
Esomeprazole Magnesium	Esomeprazole Magnesium	45	14
Metformin Hcl Er	Metformin Hcl	44	suppressed
Ibuprofen	Ibuprofen	43	18
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	42	23
Metoclopramide Hcl	Metoclopramide Hcl	42	suppressed
Cephalexin	Cephalexin	41	20
Valsartan	Valsartan	41	suppressed
Santyl	Collagenase Clostridium Hist.	40	18
Doxazosin Mesylate	Doxazosin Mesylate	39	suppressed
Meropenem	Meropenem	39	suppressed
Spiriva Respimat	Tiotropium Bromide	39	suppressed
Mesalamine	Mesalamine	38	suppressed
Risperidone Odt	Risperidone	38	suppressed
Megestrol Acetate	Megestrol Acetate	37	21
Propranolol Hcl	Propranolol Hcl	37	suppressed
Torsemide	Torsemide	37	suppressed
Benztropine Mesylate	Benztropine Mesylate	36	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	36	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	36	34
Alogliptin	Alogliptin Benzoate	35	suppressed
Carbamazepine	Carbamazepine	35	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	35	suppressed
Metronidazole	Metronidazole	35	14
Vancomycin Hcl	Vancomycin Hcl	35	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	34	suppressed
Clobetasol Propionate	Clobetasol Propionate	33	12
Folic Acid	Folic Acid	33	suppressed
Alcohol Prep Pads	Alcohol Antiseptic Pads	32	15
Ammonium Lactate	Ammonium Lactate	32	16
Aripiprazole	Aripiprazole	32	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	32	suppressed
Nystatin-Triamcinolone	Nystatin/Triamcinolone Acet	32	13
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	32	suppressed
Brilinta	Ticagrelor	31	suppressed
Calcitriol	Calcitriol	31	suppressed
Lacosamide	Lacosamide	31	suppressed
Linzess	Linaclotide	31	suppressed
Lamotrigine	Lamotrigine	30	suppressed
Nifedipine Er	Nifedipine	30	suppressed
Imipramine Hcl	Imipramine Hcl	29	suppressed
Atenolol	Atenolol	28	suppressed
Fluconazole	Fluconazole	28	19
Ketoconazole	Ketoconazole	28	18
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	28	suppressed
Autoshield Duo Pen Needle	Pen Needle,dual Safety,diabetc	27	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	27	suppressed
Dorzolamide-Timolol	Dorzolamide Hcl/Timolol Maleat	27	suppressed
Fentanyl	Fentanyl	27	suppressed
Glipizide	Glipizide	27	suppressed
Klayesta	Nystatin	27	suppressed
Lidocaine	Lidocaine	27	suppressed
Lidocaine Hcl	Lidocaine Hcl	27	16
Rexulti	Brexpiprazole	27	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	27	suppressed
Bupropion Hcl	Bupropion Hcl	26	suppressed
Divalproex Sodium Er	Divalproex Sodium	26	suppressed
Methotrexate	Methotrexate Sodium	26	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	26	suppressed
Timolol Maleate	Timolol Maleate	26	suppressed
Advair Hfa	Fluticasone Propion/Salmeterol	25	suppressed
Clonidine	Clonidine	25	suppressed
Diltiazem Hcl	Diltiazem Hcl	25	suppressed
Febuxostat	Febuxostat	25	suppressed
Mupirocin	Mupirocin	25	15
Bethanechol Chloride	Bethanechol Chloride	24	suppressed
Isosorbide Mononitrate	Isosorbide Mononitrate	24	suppressed
Kapspargo Sprinkle	Metoprolol Succinate	24	suppressed
Memantine Hcl Er	Memantine Hcl	24	suppressed
Ziprasidone Hcl	Ziprasidone Hcl	24	suppressed
Breyna	Budesonide/Formoterol Fumarate	23	suppressed
Dantrolene Sodium	Dantrolene Sodium	23	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	23	suppressed
Sotalol	Sotalol Hcl	23	suppressed
Spiriva Handihaler	Tiotropium Bromide	23	suppressed
Amoxicillin	Amoxicillin	22	14
Brimonidine Tartrate	Brimonidine Tartrate	22	suppressed
Flecainide Acetate	Flecainide Acetate	22	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	22	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	21	suppressed
Lovastatin	Lovastatin	21	suppressed
Pregabalin Er	Pregabalin	21	suppressed
Albuterol Sulfate	Albuterol Sulfate	20	13
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	20	suppressed
Clindamycin Hcl	Clindamycin Hcl	20	suppressed
Ssd	Silver Sulfadiazine	20	suppressed
Arnuity Ellipta	Fluticasone Furoate	19	suppressed
Glucagen	Glucagon	19	suppressed
Meclizine Hcl	Meclizine Hcl	19	suppressed
Novolin N Flexpen	Insulin Nph Human Isophane	19	suppressed
Doxepin Hcl	Doxepin Hcl	18	suppressed
Estradiol	Estradiol	18	suppressed
Haloperidol Decanoate	Haloperidol Decanoate	18	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	18	suppressed
Insulin Lispro	Insulin Lispro	18	suppressed
Nitroglycerin	Nitroglycerin	18	13
Silodosin	Silodosin	18	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	18	suppressed
Zerbaxa	Ceftolozane/Tazobactam	18	suppressed
Azithromycin	Azithromycin	17	11
Comfort Ez Pen Needle	Pen Needle, Diabetic	17	suppressed
Fenofibrate	Fenofibrate	17	suppressed
Glucagon Emergency Kit	Glucagon	17	suppressed
Humalog Kwikpen U-100	Insulin Lispro	17	suppressed
Incruse Ellipta	Umeclidinium Bromide	17	suppressed
Sevelamer Carbonate	Sevelamer Carbonate	17	suppressed
Sodium Chloride	0.9 % Sodium Chloride	17	suppressed
Terazosin Hcl	Terazosin Hcl	17	suppressed
Anastrozole	Anastrozole	16	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	16	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	16	suppressed
Labetalol Hcl	Labetalol Hcl	16	suppressed
Lansoprazole	Lansoprazole	16	suppressed
Mometasone Furoate	Mometasone Furoate	16	suppressed
Nystop	Nystatin	16	13
Phenytoin	Phenytoin	16	suppressed
Tolterodine Tartrate	Tolterodine Tartrate	16	suppressed
Valacyclovir	Valacyclovir Hcl	16	suppressed
Constulose	Lactulose	15	suppressed
Diltiazem 24hr Er (La)	Diltiazem Hcl	15	suppressed
Levemir Flexpen	Insulin Detemir	15	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	15	suppressed
Prazosin Hcl	Prazosin Hcl	15	suppressed
Ramelteon	Ramelteon	15	suppressed
Trihexyphenidyl Hcl	Trihexyphenidyl Hcl	15	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	14	suppressed
Creon	Lipase/Protease/Amylase	14	suppressed
Dutasteride	Dutasteride	14	suppressed
Fiasp	Insulin Aspart (Niacinamide)	14	suppressed
Fluvoxamine Maleate	Fluvoxamine Maleate	14	suppressed
Gemfibrozil	Gemfibrozil	14	suppressed
Humalog	Insulin Lispro	14	suppressed
Janumet	Sitagliptin Phos/Metformin Hcl	14	suppressed
Phenobarbital	Phenobarbital	14	suppressed
Ursodiol	Ursodiol	14	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	14	suppressed
Cefdinir	Cefdinir	13	suppressed
Desloratadine	Desloratadine	13	suppressed
Galantamine Er	Galantamine Hbr	13	suppressed
Travoprost	Travoprost	13	suppressed
Valproic Acid	Valproic Acid	13	suppressed
Carbidopa-Levodopa Er	Carbidopa/Levodopa	12	suppressed
Cimetidine	Cimetidine	12	suppressed
Donepezil Hcl Odt	Donepezil Hcl	12	suppressed
Hydrocortisone	Hydrocortisone	12	11
Irbesartan	Irbesartan	12	suppressed
Lumigan	Bimatoprost	12	suppressed
Mirabegron Er	Mirabegron	12	suppressed
Namzaric	Memantine Hcl/Donepezil Hcl	12	suppressed
Olanzapine Odt	Olanzapine	12	suppressed
Promethazine Hcl	Promethazine Hcl	12	suppressed
Rasagiline Mesylate	Rasagiline Mesylate	12	suppressed
Ventolin Hfa	Albuterol Sulfate	12	suppressed
Advair Diskus	Fluticasone Propion/Salmeterol	11	suppressed
Ampicillin-Sulbactam	Ampicillin Sod/Sulbactam Sod	11	suppressed
Cabergoline	Cabergoline	11	suppressed
Colestipol Hcl	Colestipol Hcl	11	suppressed
Linezolid	Linezolid	11	suppressed
Methimazole	Methimazole	11	suppressed
Movantik	Naloxegol Oxalate	11	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	11	suppressed
Rivastigmine	Rivastigmine	11	suppressed
Sodium Chloride	Sodium Chloride 0.45 %	11	suppressed
Trijardy Xr	Empaglifloz/Linaglip/Metformin	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	$31.29 · 1 records	Cipher Pharmaceuticals US LLC	Natroba, Spinosad	—	—
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