Healthcare provider profile · identity verified

Christopher Lee Chappell, DO

Allopathic & Osteopathic Physicians|Family Medicine · SAINT LOUIS, MO · NPI 1649651910

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 Lee Chappell, DO received $200.23 in general payments during 2025 across 10 reported records.

Verity Pharmaceuticals Inc. accounted for 16.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 13 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ozempic.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Ozempic by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$200.23

10 reported records · 10 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 companyCanonical companyAmountShareRecordsYear
Verity Pharmaceuticals Inc. Unresolved — no canonical attribution shown $32.8716.4%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $23.7211.8%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $21.9811.0%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$21.5610.8%12025
Aimmune Therapeutics, Inc. Unresolved — no canonical attribution shown $21.3710.7%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $18.399.2%12025
Dynavax Technologies Corporation Unresolved — no canonical attribution shown $15.897.9%12025
PFIZER INC. Unresolved — no canonical attribution shown $15.407.7%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $14.607.3%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $14.457.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$200.2310

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 productTypeReported companyRelated amount*RecordsYear
Tlando
Normalized: tlando
Drug Verity Pharmaceuticals Inc. $32.87 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $23.72 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $21.98 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $21.98 1 2025
Source payment records
INCEPTIV
Normalized: inceptiv
Device Medtronic, Inc. $21.56 1 2025
Source payment records
ZENPEP
Normalized: zenpep
Drug Aimmune Therapeutics, Inc. $21.37 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $18.39 1 2025
Source payment records
Heplisav-B
Normalized: heplisav b
Drug Dynavax Technologies Corporation $15.89 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $15.40 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $15.40 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $14.60 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $14.60 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $14.45 1 2025
Source payment records

* 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
Ozempic
ozempic
2025 Ozempic 2024 19
Beneficiary count suppressed
exact normalized Medicare Part D

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
19 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
19 suppressed by CMS

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium7233
Amlodipine BesylateAmlodipine Besylate5030
GabapentinGabapentin4728
Losartan PotassiumLosartan Potassium4327
Pantoprazole SodiumPantoprazole Sodium4018
FurosemideFurosemide3814
Oxycodone HclOxycodone Hcl3116
Levothyroxine SodiumLevothyroxine Sodium2918
OmeprazoleOmeprazole2916
LisinoprilLisinopril28suppressed
Potassium ChloridePotassium Chloride27suppressed
Tamsulosin HclTamsulosin Hcl2715
Fluticasone PropionateFluticasone Propionate2620
Tramadol HclTramadol Hcl2622
AlprazolamAlprazolam2517
HydrochlorothiazideHydrochlorothiazide2414
Rosuvastatin CalciumRosuvastatin Calcium2214
EliquisApixaban19suppressed
OzempicSemaglutide19suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1813
ClopidogrelClopidogrel Bisulfate17suppressed
LorazepamLorazepam1712
Metformin HclMetformin Hcl1711
SpironolactoneSpironolactone17suppressed
AllopurinolAllopurinol16suppressed
Buspirone HclBuspirone Hcl15suppressed
Metoprolol SuccinateMetoprolol Succinate1512
FamotidineFamotidine14suppressed
RamelteonRamelteon14suppressed
Sertraline HclSertraline Hcl14suppressed
CarvedilolCarvedilol13suppressed
CefdinirCefdinir13suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl13suppressed
Metoprolol TartrateMetoprolol Tartrate13suppressed
Ondansetron OdtOndansetron1311
Trazodone HclTrazodone Hcl13suppressed
Amiodarone HclAmiodarone Hcl12suppressed
Azelastine HclAzelastine Hcl12suppressed
BaclofenBaclofen12suppressed
CelecoxibCelecoxib12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
DiazepamDiazepam12suppressed
Albuterol Sulfate HfaAlbuterol Sulfate11suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1111
FinasterideFinasteride11suppressed
XareltoRivaroxaban11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $200.23 · 10 records Verity Pharmaceuticals Inc. BREZTRI, Heplisav-B, INCEPTIV, JARDIANCE, LEQVIO, MOUNJARO, NURTEC ODT, Ozempic, Rybelsus, Tlando, ZAVZPRET, ZENPEP, ZEPBOUND 2
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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