Total Payments
$454,645
2024 Payments
$215,939
Companies
22
Transactions
551
Medicare Patients
819
Medicare Billing
$107,417
Payment Breakdown by Category
Other$218,514 (48.1%)
Consulting$162,733 (35.8%)
Travel$46,341 (10.2%)
Food & Beverage$18,407 (4.0%)
Research$8,650 (1.9%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $218,394 | 96 | 48.0% |
| Consulting Fee | $162,733 | 64 | 35.8% |
| Travel and Lodging | $46,341 | 122 | 10.2% |
| Food and Beverage | $18,407 | 265 | 4.0% |
| Unspecified | $8,650 | 3 | 1.9% |
| Entertainment | $120.07 | 1 | 0.0% |
Payments by Type
General
$445,995
548 transactions
Research
$8,650
3 transactions
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Apollo Endosurgery US Inc | $124,565 | 133 | $0 (2023) |
| Boston Scientific Corporation | $115,848 | 164 | $0 (2024) |
| ABBVIE INC. | $93,302 | 66 | $0 (2024) |
| Phathom Pharmaceuticals, Inc. | $48,306 | 57 | $0 (2024) |
| INTUITIVE SURGICAL, INC. | $24,789 | 14 | $0 (2024) |
| Olympus America Inc. | $11,041 | 20 | $0 (2022) |
| Erbe Elektromedizin GmbH | $8,650 | 3 | $0 (2024) |
| Olympus Corporation | $5,612 | 9 | $0 (2023) |
| Olympus Corporation of the Americas | $4,231 | 19 | $0 (2024) |
| US ENDOSCOPY | $4,000 | 1 | $0 (2022) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $215,939 | 200 | Boston Scientific Corporation ($85,597) |
| 2023 | $64,249 | 65 | Apollo Endosurgery US Inc ($26,402) |
| 2022 | $70,108 | 86 | Apollo Endosurgery US Inc ($43,654) |
| 2021 | $24,154 | 36 | AbbVie Inc. ($16,159) |
| 2020 | $26,387 | 26 | Apollo Endosurgery US Inc ($14,732) |
| 2019 | $35,165 | 79 | Apollo Endosurgery US Inc ($22,178) |
| 2018 | $17,749 | 46 | Apollo Endosurgery US Inc ($14,138) |
| 2017 | $894.26 | 13 | Wilson Cook Medical Incorporated ($455.78) |
All Payment Transactions
551 individual payment records from CMS Open Payments — Page 1 of 23
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/24/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $65.65 | General |
| Category: SURGERY | ||||||
| 12/24/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $24.90 | General |
| Category: SURGERY | ||||||
| 12/18/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Consulting Fee | Cash or cash equivalent | $1,650.00 | General |
| Category: SURGERY | ||||||
| 12/17/2024 | ABBVIE INC. | CREON (Drug), LINZESS | Food and Beverage | In-kind items and services | $5.01 | General |
| Category: ENDOCRINOLOGY | ||||||
| 12/14/2024 | Erbe Elektromedizin GmbH | — | — | Cash or cash equivalent | $3,737.50 | Research |
| Study: Endoscopic gastric mucosal ablation (GMA) as a primary obesity therapy Early Feasibility [COMET EF] - Step II | ||||||
| 12/14/2024 | Erbe Elektromedizin GmbH | — | — | Cash or cash equivalent | $3,412.50 | Research |
| Study: Safety and feasibility of HybridAPC for gastric mucosal ablation in the management of patients with class III obesity | ||||||
| 12/12/2024 | Boston Scientific Corporation | — | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $7,500.00 | General |
| 12/12/2024 | Boston Scientific Corporation | — | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $1,500.00 | General |
| 12/12/2024 | Boston Scientific Corporation | — | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $500.00 | General |
| 12/12/2024 | Boston Scientific Corporation | — | Travel and Lodging | Cash or cash equivalent | $83.08 | General |
| 12/11/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Consulting Fee | Cash or cash equivalent | $8,250.00 | General |
| Category: SURGERY | ||||||
| 12/11/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Consulting Fee | Cash or cash equivalent | $8,250.00 | General |
| Category: SURGERY | ||||||
| 12/09/2024 | ABBVIE INC. | CREON (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $4,900.00 | General |
| Category: ENDOCRINOLOGY | ||||||
| 12/05/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $868.61 | General |
| Category: SURGERY | ||||||
| 12/05/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $257.55 | General |
| Category: SURGERY | ||||||
| 11/20/2024 | Phathom Pharmaceuticals, Inc. | VOQUEZNA (Drug) | Travel and Lodging | Cash or cash equivalent | $22.78 | General |
| Category: GASTROENTEROLOGY | ||||||
| 11/19/2024 | Boston Scientific Corporation | Apollo ESG NXT System (Device) | Food and Beverage | In-kind items and services | $80.17 | General |
| Category: Apollo ESG NXT System_ENDO | ||||||
| 11/18/2024 | Boston Scientific Corporation | Apollo ESG NXT System (Device) | Food and Beverage | In-kind items and services | $85.17 | General |
| Category: Apollo ESG NXT System_ENDO | ||||||
| 11/18/2024 | Boston Scientific Corporation | Apollo ESG NXT System (Device) | Food and Beverage | In-kind items and services | $76.96 | General |
| Category: Apollo ESG NXT System_ENDO | ||||||
| 11/13/2024 | Phathom Pharmaceuticals, Inc. | VOQUEZNA (Drug) | Travel and Lodging | Cash or cash equivalent | $99.27 | General |
| Category: GASTROENTEROLOGY | ||||||
| 11/13/2024 | Phathom Pharmaceuticals, Inc. | VOQUEZNA (Drug) | Food and Beverage | Cash or cash equivalent | $51.68 | General |
| Category: GASTROENTEROLOGY | ||||||
| 11/08/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Consulting Fee | Cash or cash equivalent | $2,200.00 | General |
| Category: SURGERY | ||||||
| 11/08/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Consulting Fee | Cash or cash equivalent | $1,650.00 | General |
| Category: SURGERY | ||||||
| 11/07/2024 | Boston Scientific Corporation | Resolution 360 Clip (Device) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $3,000.00 | General |
| Category: Resolution 360 Clip_ENDO | ||||||
| 11/07/2024 | Boston Scientific Corporation | Resolution 360 Clip (Device) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $1,000.00 | General |
| Category: Resolution 360 Clip_ENDO | ||||||
Research Studies & Clinical Trials
| Study Name | Company | Amount | Records |
|---|---|---|---|
| Endoscopic gastric mucosal ablation (GMA) as a primary obesity therapy Early Feasibility [COMET EF] - Step II | Erbe Elektromedizin GmbH | $3,738 | 1 |
| Safety and feasibility of HybridAPC for gastric mucosal ablation in the management of patients with class III obesity | Erbe Elektromedizin GmbH | $3,413 | 1 |
| Endoscopic gastric mucosal ablation as a primary obesity therapy Early Feasibility (COMET EF) - Step I | Erbe Elektromedizin GmbH | $1,500 | 1 |
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 9 | 196 | 217 | $259,647 | $30,628 |
| 2022 | 4 | 127 | 130 | $162,638 | $13,978 |
| 2021 | 13 | 284 | 343 | $946,255 | $39,137 |
| 2020 | 10 | 212 | 244 | $596,612 | $23,674 |
Total Patients
819
Total Services
934
Medicare Billing
$107,417
Procedure Codes
36
All Medicare Procedures & Services
36 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 43274 | Insertion of stent into pancreatic or bile duct using a flexible endoscope | Facility | 2023 | 16 | 22 | $36,674 | $7,662 | 20.9% |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Facility | 2023 | 31 | 33 | $56,164 | $6,224 | 11.1% |
| 45390 | Removal of large bowel tissue using a flexible endoscope | Facility | 2023 | 16 | 17 | $12,750 | $4,988 | 39.1% |
| 43242 | Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Facility | 2023 | 16 | 16 | $17,136 | $3,414 | 19.9% |
| 45380 | Biopsy of large bowel using a flexible endoscope | Facility | 2023 | 39 | 41 | $61,790 | $2,650 | 4.3% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 19 | 19 | $10,582 | $1,987 | 18.8% |
| 43264 | Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | Facility | 2023 | 15 | 16 | $20,719 | $1,660 | 8.0% |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Facility | 2023 | 27 | 30 | $40,860 | $1,601 | 3.9% |
| 74328 | Review by radiologist of image from tube placement into bile duct using an endoscope | Facility | 2023 | 17 | 23 | $2,972 | $442.57 | 14.9% |
| 99222 | Initial hospital inpatient care per day, typically 50 minutes | Facility | 2022 | 82 | 85 | $51,196 | $8,880 | 17.3% |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Facility | 2022 | 14 | 14 | $39,528 | $2,555 | 6.5% |
| 43238 | Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope | Facility | 2022 | 12 | 12 | $28,200 | $1,754 | 6.2% |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Facility | 2022 | 19 | 19 | $43,714 | $788.88 | 1.8% |
| 43274 | Insertion of stent into pancreatic or bile duct using a flexible endoscope via mouth | Facility | 2021 | 23 | 29 | $164,351 | $10,515 | 6.4% |
| 43273 | Examination of common bile and/or pancreatic ducts using an endoscope | Facility | 2021 | 29 | 46 | $32,023 | $4,922 | 15.4% |
| 43238 | Ultrasound guided needle aspiration or biopsies of esophagus using an endoscope | Facility | 2021 | 21 | 21 | $65,664 | $3,822 | 5.8% |
| 45390 | Removal of large bowel tissue using a flexible endoscope (colonoscopy) | Facility | 2021 | 13 | 13 | $41,541 | $3,778 | 9.1% |
| 43237 | Ultrasound examination of esophagus, stomach, and/or upper small bowel using an endoscope | Facility | 2021 | 24 | 24 | $63,975 | $3,711 | 5.8% |
| 43239 | Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscope | Facility | 2021 | 61 | 71 | $183,666 | $2,594 | 1.4% |
| 45385 | Removal of polyps or growths in large bowel using an endoscope (colonoscopy) using a mechanical snare | Facility | 2021 | 17 | 17 | $67,409 | $2,299 | 3.4% |
| 43242 | Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using an endoscope | Facility | 2021 | 12 | 12 | $37,821 | $2,169 | 5.7% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Facility | 2021 | 13 | 16 | $6,344 | $1,387 | 21.9% |
| 43264 | Removal of stone or debris from bile or pancreatic duct using a flexible endoscope via mouth | Facility | 2021 | 20 | 29 | $185,788 | $1,358 | 0.7% |
| 43249 | Balloon dilation of esophagus, stomach and upper small bowel using a flexible endoscope | Facility | 2021 | 12 | 15 | $44,210 | $1,179 | 2.7% |
| 74328 | Radiological supervision and interpretation of insertion of catheter into biliary duct using an endoscope | Facility | 2021 | 26 | 37 | $13,507 | $898.73 | 6.7% |
About Dr. Christopher Chapman, M.D
Dr. Christopher Chapman, M.D is a Gastroenterology healthcare provider based in Chicago, Illinois. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 02/18/2009. The National Provider Identifier (NPI) number assigned to this provider is 1235378043.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Christopher Chapman, M.D has received a total of $454,645 in payments from pharmaceutical and medical device companies, with $215,939 received in 2024. These payments were reported across 551 transactions from 22 companies. The most common payment nature is "Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program" ($218,394).
As a Medicare-enrolled provider, Chapman has provided services to 819 Medicare beneficiaries, totaling 934 services with total Medicare billing of $107,417. Data is available for 4 years (2020–2023), covering 36 distinct procedure/service records.
Ad
Practice Information
- Specialty Gastroenterology
- Other Specialties Gastroenterology
- Location Chicago, IL
- Active Since 02/18/2009
- Last Updated 11/08/2022
- Taxonomy Code 207RG0100X
- Entity Type Individual
- NPI Number 1235378043
Products in Payments
- CREON (Drug) $77,299
- OverStitch Endoscopic Suturing System (Device) $58,164
- VOQUEZNA (Drug) $48,306
- Overstitch (Device) $35,468
- Da Vinci Surgical System (Device) $24,789
- ORBERA Intragastric Balloon System (Device) $20,514
- OverStitch (Device) $13,560
- X-Tack Endoscopic HeliX Tacking System (Device) $11,875
- EXALT Model D (Device) $7,433
- Olympus Biliary Devices (Device) $7,219
- General - Therapies (Device) $5,824
- GENERAL THERAPIES (Device) $5,674
- Resolution 360 Clip (Device) $4,682
- Metal Stents (Device) $3,225
- RESOLUTION CLIP (Device) $2,829
- Cellsearch (Device) $2,356
- WALLFLEX (Device) $2,268
- X-tack (Device) $2,000
- SPYGLASS (Device) $1,625
- Hemostasis Clips (Device) $1,034
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Data Sources
Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.
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