Total Payments
$859,735
2024 Payments
$112,880
Companies
29
Transactions
1,219
Medicare Patients
1,140
Medicare Billing
$150,038
Payment Breakdown by Category
Education$438,467 (51.0%)
Consulting$289,144 (33.6%)
Travel$73,119 (8.5%)
Other$35,378 (4.1%)
Food & Beverage$19,726 (2.3%)
Research$3,900 (0.5%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Education | $438,467 | 284 | 51.0% |
| Consulting Fee | $289,144 | 184 | 33.6% |
| Travel and Lodging | $73,119 | 359 | 8.5% |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $30,063 | 20 | 3.5% |
| Food and Beverage | $19,726 | 369 | 2.3% |
| Honoraria | $5,315 | 2 | 0.6% |
| Unspecified | $3,900 | 1 | 0.5% |
Payments by Type
General
$855,835
1,218 transactions
Research
$3,900
1 transactions
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Olympus Corporation of the Americas | $501,290 | 730 | $0 (2024) |
| Olympus America Inc. | $94,637 | 136 | $0 (2024) |
| Boston Scientific Corporation | $73,716 | 77 | $0 (2023) |
| Spiration, Inc. | $25,937 | 36 | $0 (2020) |
| Gyrus ACMI, Inc. | $24,932 | 31 | $0 (2024) |
| Auris Health, Inc. | $24,804 | 35 | $0 (2019) |
| Ethicon Inc. | $22,873 | 26 | $0 (2023) |
| Bard Peripheral Vascular, Inc. | $19,652 | 18 | $0 (2022) |
| Olympus Corporation | $17,713 | 29 | $0 (2023) |
| Erbe Elektromedizin GmbH | $14,525 | 4 | $0 (2020) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $112,880 | 141 | Olympus Corporation of the Americas ($68,671) |
| 2023 | $104,917 | 170 | Olympus Corporation of the Americas ($62,893) |
| 2022 | $103,541 | 168 | Olympus Corporation of the Americas ($92,925) |
| 2021 | $37,894 | 53 | Olympus Corporation of the Americas ($28,694) |
| 2020 | $58,808 | 79 | Olympus Corporation of the Americas ($23,178) |
| 2019 | $166,932 | 204 | Olympus Corporation of the Americas ($64,269) |
| 2018 | $139,160 | 217 | Olympus Corporation of the Americas ($84,472) |
| 2017 | $135,601 | 187 | Olympus Corporation of the Americas ($76,188) |
All Payment Transactions
1,219 individual payment records from CMS Open Payments — Page 1 of 49
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/27/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $377.95 | General |
| 12/27/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $35.00 | General |
| 12/20/2024 | AstraZeneca Pharmaceuticals LP | IMFINZI (Biological) | Consulting Fee | Cash or cash equivalent | $4,027.50 | General |
| Category: Oncology | ||||||
| 12/05/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $1,637.50 | General |
| Category: Gastroenterology | ||||||
| 12/05/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $655.00 | General |
| Category: Gastroenterology | ||||||
| 11/27/2024 | Olympus America Inc. | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (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 | $5,240.00 | General |
| Category: Gastroenterology | ||||||
| 11/27/2024 | Olympus America Inc. | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (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 | $1,310.00 | General |
| Category: Gastroenterology | ||||||
| 11/21/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device) | Consulting Fee | Cash or cash equivalent | $655.00 | General |
| Category: Gastroenterology | ||||||
| 11/15/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $87.30 | General |
| 11/14/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $25.85 | General |
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $5,567.50 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $5,567.50 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $2,292.50 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $1,965.00 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $1,965.00 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Education | Cash or cash equivalent | $655.00 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $289.75 | General |
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Travel and Lodging | In-kind items and services | $75.00 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Food and Beverage | In-kind items and services | $58.80 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Food and Beverage | In-kind items and services | $58.51 | General |
| Category: Gastroenterology | ||||||
| 11/12/2024 | Olympus Corporation of the Americas | EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device), SINGLE USE SUCTION VALVE (Sterile), ViziShot 2 FLEX | Food and Beverage | In-kind items and services | $16.58 | General |
| Category: Gastroenterology | ||||||
| 11/11/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $415.80 | General |
| 10/15/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $385.97 | General |
| 10/15/2024 | Olympus Corporation of the Americas | — | Travel and Lodging | In-kind items and services | $35.00 | General |
| 10/07/2024 | Olympus America Inc. | — | Food and Beverage | In-kind items and services | $21.53 | General |
Research Studies & Clinical Trials
| Study Name | Company | Amount | Records |
|---|---|---|---|
| A Clinical Evaluation of a novel catheter compared to a currently marketed catheter for managing Pleural Effusions. | Becton, Dickinson and Company | $3,900 | 1 |
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 8 | 195 | 241 | $190,281 | $27,358 |
| 2022 | 6 | 199 | 260 | $219,444 | $31,867 |
| 2021 | 12 | 341 | 424 | $323,981 | $42,707 |
| 2020 | 13 | 405 | 471 | $373,472 | $48,107 |
Total Patients
1,140
Total Services
1,396
Medicare Billing
$150,038
Procedure Codes
39
All Medicare Procedures & Services
39 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | Facility | 2023 | 35 | 68 | $74,718 | $11,521 | 15.4% |
| 31652 | Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes | Facility | 2023 | 23 | 23 | $38,450 | $3,639 | 9.5% |
| 31629 | Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope | Facility | 2023 | 25 | 26 | $47,138 | $3,497 | 7.4% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 36 | 40 | $6,342 | $2,805 | 44.2% |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Facility | 2023 | 20 | 27 | $5,670 | $1,695 | 29.9% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Office | 2023 | 18 | 18 | $4,950 | $1,504 | 30.4% |
| 31654 | Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound | Facility | 2023 | 25 | 26 | $7,202 | $1,355 | 18.8% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 13 | 13 | $5,811 | $1,342 | 23.1% |
| 99291 | Critical care, first 30-74 minutes | Facility | 2022 | 40 | 91 | $96,369 | $15,862 | 16.5% |
| 31652 | Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes | Facility | 2022 | 33 | 34 | $53,890 | $5,420 | 10.1% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 46 | 52 | $7,852 | $3,675 | 46.8% |
| 31629 | Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope | Facility | 2022 | 24 | 25 | $45,325 | $2,783 | 6.1% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Office | 2022 | 29 | 29 | $7,975 | $2,608 | 32.7% |
| 31654 | Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound | Facility | 2022 | 27 | 29 | $8,033 | $1,519 | 18.9% |
| 99291 | Critical care delivery critically ill or injured patient, first 30-74 minutes | Facility | 2021 | 39 | 73 | $77,307 | $12,731 | 16.5% |
| 31652 | Examination of lung airways using an endoscope with imaging guidance and ultrasound, 1 or 2 lymph nodes involved | Facility | 2021 | 50 | 50 | $78,950 | $8,426 | 10.7% |
| 31629 | Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope | Facility | 2021 | 34 | 35 | $63,455 | $4,210 | 6.6% |
| 99213 | Established patient outpatient visit, total time 20-29 minutes | Office | 2021 | 39 | 47 | $7,055 | $3,306 | 46.9% |
| 31628 | Biopsy of one lobe of lung using an endoscope | Facility | 2021 | 38 | 38 | $35,910 | $2,872 | 8.0% |
| 99203 | New patient outpatient visit, total time 30-44 minutes | Office | 2021 | 24 | 24 | $6,573 | $2,152 | 32.7% |
| 99222 | Initial hospital inpatient care, typically 50 minutes per day | Facility | 2021 | 16 | 17 | $7,599 | $1,853 | 24.4% |
| 31654 | Examination of lung airways using an endoscope with imaging guidance and ultrasound | Facility | 2021 | 33 | 34 | $9,418 | $1,852 | 19.7% |
| 99231 | Subsequent hospital inpatient care, typically 15 minutes per day | Facility | 2021 | 27 | 58 | $8,288 | $1,779 | 21.5% |
| 32555 | Removal of fluid from chest cavity with imaging guidance | Facility | 2021 | 18 | 18 | $22,154 | $1,575 | 7.1% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2021 | 11 | 18 | $3,564 | $980.97 | 27.5% |
About Dr. Alexander Chen, MD
Dr. Alexander Chen, MD is a Pulmonary Disease healthcare provider based in Saint Louis, Missouri. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 05/21/2007. The National Provider Identifier (NPI) number assigned to this provider is 1881802783.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Alexander Chen, MD has received a total of $859,735 in payments from pharmaceutical and medical device companies, with $112,880 received in 2024. These payments were reported across 1,219 transactions from 29 companies. The most common payment nature is "Education" ($438,467).
As a Medicare-enrolled provider, Chen has provided services to 1,140 Medicare beneficiaries, totaling 1,396 services with total Medicare billing of $150,038. Data is available for 4 years (2020–2023), covering 39 distinct procedure/service records.
Ad
Practice Information
- Specialty Pulmonary Disease
- Location Saint Louis, MO
- Active Since 05/21/2007
- Last Updated 04/15/2025
- Taxonomy Code 207RP1001X
- Entity Type Individual
- NPI Number 1881802783
Products in Payments
- SINGLE USE SUCTION VALVE (Sterile) (Device) $145,310
- Olympus Bronchoscopes (Device) $130,379
- Olympus Capital Accessories (Device) $118,822
- EVES EUS ULTRASOUND BRONCHOFIBERVIDEOSCOPE (Device) $51,431
- Single Use Guide Sheath Kit (Device) $43,232
- Olympus Respiratory Accessories (Device) $25,511
- Monarch (Device) $22,925
- EVIS EXERA II ULTRASONIC BRONCHOFIBERVIDEOSCOPE (Device) $19,361
- GENERAL THERAPIES (Device) $17,690
- Monarch Platform (Device) $16,765
- Spiration Valve System (Device) $16,382
- Olympus EBUS Bronchoscopes (Device) $15,283
- Olympus Respiratory Devices (Device) $12,372
- EVIS EXERA (Device) $11,580
- GENERAL - THERAPIES (Device) $10,072
- Respiratory Accessories (Device) $9,680
- Olympus (Device) $9,130
- GENERAL PULMONARY (Device) $7,642
- GENERAL PULMONARY (Device) $7,634
- Da Vinci Surgical System (Device) $7,211
Explore
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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