Payment overview · 2025
General Payments
$217,496.73
197 reported records · 8 companies
Healthcare provider profile · identity verified
Christopher Grant Chapman, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine|Gastroenterology · CHICAGO, IL · NPI 1235378043
Verified facts
What the public records show
CMS Open Payments records show Christopher Grant Chapman, M.D. received $217,496.73 in general payments during 2025 across 197 reported records.
Boston Scientific Corporation accounted for 67.9% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 26 associated products.
These records do not establish that a payment influenced prescribing or medical care.
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 |
|---|---|---|---|---|---|
| Boston Scientific Corporation | Unresolved — no canonical attribution shown | $147,746.88 | 67.9% | 131 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $45,056.13 | 20.7% | 29 | 2025 |
| Phathom Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $9,084.66 | 4.2% | 12 | 2025 |
| INTUITIVE SURGICAL, INC. | Unresolved — no canonical attribution shown | $8,063.87 | 3.7% | 10 | 2025 |
| Olympus Medical Systems Corporation | Unresolved — no canonical attribution shown | $5,496.55 | 2.5% | 5 | 2025 |
| Olympus Corporation of the Americas | Unresolved — no canonical attribution shown | $1,358.74 | 0.6% | 2 | 2025 |
| Cook Medical LLC | Unresolved — no canonical attribution shown | $539.00 | 0.2% | 5 | 2025 |
| CONMED Corporation | Unresolved — no canonical attribution shown | $150.90 | 0.1% | 3 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $176,150.00 | 59 |
| Consulting Fee | $17,823.95 | 9 |
| Travel and Lodging | $13,641.06 | 61 |
| Food and Beverage | $5,631.72 | 67 |
| Education | $4,250.00 | 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 |
|---|---|---|---|---|---|
| General - Therapies Normalized: general therapies |
Device | Boston Scientific Corporation | $53,203.22 | 33 | 2025 |
Source payment records
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| ORBERA Intragastric Balloon System Normalized: orbera intragastric balloon system |
Device | Boston Scientific Corporation | $47,530.01 | 20 | 2025 |
Source payment records
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| CREON Normalized: creon |
Drug | ABBVIE INC. | $35,900.48 | 25 | 2025 |
Source payment records
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| EXALT Model D Normalized: exalt model d |
Device | Boston Scientific Corporation | $16,830.35 | 6 | 2025 |
Source payment records
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| OverStitch NXT Endoscopic Suturing System Normalized: overstitch nxt endoscopic suturing system |
Device | Boston Scientific Corporation | $14,500.73 | 13 | 2025 |
Source payment records
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| VOQUEZNA Normalized: voquezna |
Drug | Phathom Pharmaceuticals, Inc. | $9,084.66 | 12 | 2025 |
Source payment records
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| Da Vinci Surgical System Normalized: da vinci surgical system |
Device | INTUITIVE SURGICAL, INC. | $8,063.87 | 10 | 2025 |
Source payment records
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| Resolution 360 Clip Normalized: resolution 360 clip |
Device | Boston Scientific Corporation | $5,794.17 | 5 | 2025 |
Source payment records
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| OverStitch Endoscopic Suturing System Normalized: overstitch endoscopic suturing system |
Device | Boston Scientific Corporation | $5,247.53 | 19 | 2025 |
Source payment records
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| Single Use Repositionable Clip Normalized: single use repositionable clip |
Device | Olympus Medical Systems Corporation | $4,156.55 | 4 | 2025 |
Source payment records
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| Apollo ESG NXT System Normalized: apollo esg nxt system |
Device | Boston Scientific Corporation | $1,882.98 | 15 | 2025 |
Source payment records
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| General - EndoChoice Normalized: general endochoice |
Device | Boston Scientific Corporation | $1,038.96 | 7 | 2025 |
Source payment records
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| OverStitch Endoscopic Suturing System Sx Normalized: overstitch endoscopic suturing system sx |
Device | Boston Scientific Corporation | $585.35 | 1 | 2025 |
Source payment records
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| APOLLO ESG System Normalized: apollo esg system |
Device | Boston Scientific Corporation | $419.99 | 4 | 2025 |
Source payment records
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| General - Biliary Devices Normalized: general biliary devices |
Device | Boston Scientific Corporation | $328.77 | 4 | 2025 |
Source payment records
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| HEMOSPRAY Normalized: hemospray |
Device | Cook Medical LLC | $285.75 | 1 | 2025 |
Source payment records
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| ECHOTIP INSIGHT Normalized: echotip insight |
Device | Cook Medical LLC | $236.84 | 3 | 2025 |
Source payment records
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| SpyGlass Normalized: spyglass |
Device | Boston Scientific Corporation | $188.26 | 2 | 2025 |
Source payment records
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| Apollo REVISE NXT System Normalized: apollo revise nxt system |
Device | Boston Scientific Corporation | $154.69 | 1 | 2025 |
Source payment records
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| CONMED BILIARY Normalized: conmed biliary |
Device | CONMED Corporation | $150.90 | 3 | 2025 |
Source payment records
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| CONMED DILATION Normalized: conmed dilation |
Device | CONMED Corporation | $92.42 | 1 | 2025 |
Source payment records
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| CONMED GENERATORS Normalized: conmed generators |
Device | CONMED Corporation | $92.42 | 1 | 2025 |
Source payment records
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| Axios Normalized: axios |
Device | Boston Scientific Corporation | $41.87 | 1 | 2025 |
Source payment records
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| HANAROSTENT Esophagus TTS(CCC) Normalized: hanarostent esophagus tts ccc |
Device | Olympus Corporation of the Americas | $18.74 | 1 | 2025 |
Source payment records
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| CAESAR Normalized: caesar |
Device | Cook Medical LLC | $16.41 | 1 | 2025 |
Source payment records
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| LINZESS Normalized: linzess |
Drug | ABBVIE INC. | $6.27 | 1 | 2025 |
Source payment records
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* 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 |
|---|---|---|---|
| Gavilyte-G | Peg3350/Sod Sulf,bicarb,cl/Kcl | 32 | 29 |
| Omeprazole | Omeprazole | 22 | suppressed |
| Sod Sulf-Potass Sulf-Mag Sulf | Sodium, Potassium,mag Sulfates | 17 | 15 |
| Peg-3350 And Electrolytes | Peg3350/Sod Sulf,bicarb,cl/Kcl | 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 | $217,496.73 · 197 records | Boston Scientific Corporation | APOLLO ESG System, Apollo ESG NXT System, Apollo REVISE NXT System, Axios, CAESAR, CONMED BILIARY, CONMED DILATION, CONMED GENERATORS, CREON, Da Vinci Surgical System, ECHOTIP INSIGHT, EXALT Model D, General - Biliary Devices, General - EndoChoice, General - Therapies, HANAROSTENT Esophagus TTS(CCC), HEMOSPRAY, LINZESS, ORBERA Intragastric Balloon System, OverStitch Endoscopic Suturing System, OverStitch Endoscopic Suturing System Sx, OverStitch NXT Endoscopic Suturing System, Resolution 360 Clip, Single Use Repositionable Clip, SpyGlass, VOQUEZNA | — | — |
| 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 |
Full methodology · Questions & answers · Report a possible error