Payment Breakdown by Category
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $7,563 | 128 | 64.9% |
| Consulting Fee | $2,550 | 1 | 21.9% |
| Travel and Lodging | $1,457 | 6 | 12.5% |
| Gift | $90.00 | 2 | 0.8% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Allergan, Inc. | $5,016 | 29 | $0 (2021) |
| Glaukos Corporation | $1,431 | 15 | $0 (2024) |
| Johnson & Johnson Surgical Vision, Inc. | $1,349 | 7 | $0 (2022) |
| Bausch & Lomb Americas Inc. | $863.23 | 10 | $0 (2022) |
| ABBVIE INC. | $790.02 | 14 | $0 (2024) |
| Bausch & Lomb, a division of Bausch Health US, LLC | $499.39 | 15 | $0 (2021) |
| Valeant Pharmaceuticals North America LLC | $418.23 | 11 | $0 (2017) |
| Aerie Pharmaceuticals, Inc. | $266.69 | 8 | $0 (2021) |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $193.95 | 4 | $0 (2021) |
| Horizon Therapeutics plc | $170.22 | 7 | $0 (2023) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $452.98 | 8 | ABBVIE INC. ($203.97) |
| 2023 | $311.33 | 10 | AbbVie Inc. ($157.69) |
| 2022 | $1,492 | 22 | Bausch & Lomb Americas Inc. ($863.23) |
| 2021 | $874.31 | 18 | Allergan, Inc. ($369.98) |
| 2020 | $496.19 | 12 | Allergan, Inc. ($279.22) |
| 2019 | $782.43 | 9 | Glaukos Corporation ($292.01) |
| 2018 | $5,793 | 34 | Allergan Inc. ($3,825) |
| 2017 | $1,458 | 24 | Allergan Inc. ($430.78) |
All Payment Transactions
137 individual payment records from CMS Open Payments — Page 1 of 6
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 10/28/2024 | ABBVIE INC. | LUMIGAN (Drug) | Food and Beverage | In-kind items and services | $3.39 | General |
| Category: EYE CARE | ||||||
| 09/24/2024 | ABBVIE INC. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $8.56 | General |
| Category: EYE CARE | ||||||
| 07/22/2024 | ABBVIE INC. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $80.27 | General |
| Category: EYE CARE | ||||||
| 05/15/2024 | Alcon Vision LLC | HYDRUS Microstent (Device) | Food and Beverage | In-kind items and services | $24.77 | General |
| Category: Ophthalmology | ||||||
| 03/20/2024 | Alcon Vision LLC | HYDRUS Microstent (Device) | Food and Beverage | In-kind items and services | $19.22 | General |
| Category: Ophthalmology | ||||||
| 03/18/2024 | Amgen Inc. | TEPEZZA (Biological) | Food and Beverage | In-kind items and services | $26.97 | General |
| Category: Inflammation/Rare Disease | ||||||
| 03/01/2024 | Glaukos Corporation | iStent Trabecular Micro-Bypass System Model iS3 (Device) | Food and Beverage | Cash or cash equivalent | $178.05 | General |
| Category: Glaucoma | ||||||
| 03/01/2024 | ABBVIE INC. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $111.75 | General |
| Category: EYE CARE | ||||||
| 12/04/2023 | Horizon Therapeutics plc | TEPEZZA (Drug) | Food and Beverage | In-kind items and services | $30.00 | General |
| Category: TEPEZZA | ||||||
| 10/16/2023 | AbbVie Inc. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $80.02 | General |
| Category: EYE CARE | ||||||
| 09/22/2023 | CSL Behring | Kcentra (Biological) | Food and Beverage | In-kind items and services | $19.98 | General |
| Category: Trauma (Emergency, Injury, Surgery) | ||||||
| 08/21/2023 | AbbVie Inc. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $36.09 | General |
| Category: EYE CARE | ||||||
| 08/01/2023 | CSL Behring | Kcentra (Biological) | Food and Beverage | In-kind items and services | $27.82 | General |
| Category: Trauma (Emergency, Injury, Surgery) | ||||||
| 07/31/2023 | Horizon Therapeutics plc | TEPEZZA (Drug) | Food and Beverage | In-kind items and services | $30.00 | General |
| Category: TEPEZZA | ||||||
| 07/26/2023 | AbbVie Inc. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $17.77 | General |
| Category: EYE CARE | ||||||
| 04/17/2023 | Horizon Therapeutics plc | TEPEZZA (Drug) | Food and Beverage | In-kind items and services | $24.68 | General |
| Category: TEPEZZA | ||||||
| 01/23/2023 | Horizon Therapeutics plc | TEPEZZA (Drug) | Food and Beverage | In-kind items and services | $21.16 | General |
| Category: TEPEZZA | ||||||
| 01/11/2023 | AbbVie Inc. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $23.81 | General |
| Category: EYE CARE | ||||||
| 12/13/2022 | Bausch & Lomb Americas Inc. | enVista MX60 IOL (Device), AMVISC | Food and Beverage | In-kind items and services | $110.14 | General |
| Category: Ophthalmology | ||||||
| 11/29/2022 | Bausch & Lomb Americas Inc. | enVista MX60 IOL (Device), AMVISC | Food and Beverage | In-kind items and services | $45.70 | General |
| Category: Ophthalmology | ||||||
| 11/28/2022 | Horizon Therapeutics plc | TEPEZZA (Drug) | Food and Beverage | In-kind items and services | $25.89 | General |
| Category: TEPEZZA | ||||||
| 11/09/2022 | Bausch & Lomb Americas Inc. | AMVISC (Device), enVista MX60 IOL | Food and Beverage | In-kind items and services | $121.75 | General |
| Category: Ophthalmology | ||||||
| 11/09/2022 | Bausch & Lomb Americas Inc. | enVista MX60 IOL (Device), AMVISC | Food and Beverage | In-kind items and services | $118.41 | General |
| Category: Ophthalmology | ||||||
| 11/09/2022 | ABBVIE INC. | XEN GLAUCOMA TREATMENT SYSTEM (Device) | Food and Beverage | In-kind items and services | $28.24 | General |
| Category: GLAUCOMA | ||||||
| 10/26/2022 | Bausch & Lomb Americas Inc. | AMVISC (Device), enVista MX60 IOL | Food and Beverage | In-kind items and services | $102.18 | General |
| Category: Ophthalmology | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 15 | 2,800 | 3,162 | $712,372 | $241,061 |
| 2022 | 15 | 2,754 | 3,024 | $674,034 | $227,393 |
| 2021 | 13 | 2,393 | 2,667 | $519,644 | $179,274 |
| 2020 | 12 | 1,937 | 2,177 | $451,975 | $158,751 |
All Medicare Procedures & Services
57 procedure records from CMS Medicare Utilization — Page 1 of 3
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 92014 | Established patient complete exam of visual system | Office | 2023 | 578 | 594 | $168,603 | $56,744 | 33.7% |
| 66984 | Removal of cataract with insertion of prosthetic lens | Facility | 2023 | 85 | 110 | $140,800 | $51,216 | 36.4% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 232 | 374 | $104,495 | $35,077 | 33.6% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 203 | 226 | $44,840 | $15,448 | 34.5% |
| 66821 | Removal of recurring cataract in lens capsule using a laser | Office | 2023 | 33 | 48 | $35,868 | $12,992 | 36.2% |
| 66982 | Complex removal of cataract with insertion of prosthetic lens | Facility | 2023 | 18 | 19 | $31,920 | $12,013 | 37.6% |
| 92083 | Exam of visual field with extended testing | Office | 2023 | 269 | 273 | $39,027 | $11,957 | 30.6% |
| 92133 | Imaging of optic nerve | Office | 2023 | 340 | 353 | $29,081 | $9,315 | 32.0% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 74 | 74 | $26,749 | $7,385 | 27.6% |
| 92136 | Measurement of corneal curvature and depth of eye | Office | 2023 | 142 | 214 | $20,579 | $7,013 | 34.1% |
| 92020 | Exam of the internal drainage system of eye | Office | 2023 | 283 | 290 | $17,880 | $5,799 | 32.4% |
| 68761 | Closure of tear duct opening using plug | Office | 2023 | 11 | 24 | $13,826 | $3,699 | 26.8% |
| 66821 | Removal of recurring cataract in lens capsule using a laser | Facility | 2023 | 12 | 13 | $9,748 | $3,491 | 35.8% |
| 92250 | Photography of the retina | Office | 2023 | 130 | 131 | $11,033 | $3,407 | 30.9% |
| 92134 | Imaging of retina | Office | 2023 | 114 | 114 | $10,298 | $3,259 | 31.6% |
| 76514 | Ultrasound scan of cornea to determine thickness | Office | 2023 | 276 | 305 | $7,625 | $2,244 | 29.4% |
| 92014 | Established patient complete exam of visual system | Office | 2022 | 567 | 586 | $168,768 | $56,027 | 33.2% |
| 66984 | Removal of cataract with insertion of prosthetic lens | Facility | 2022 | 63 | 89 | $112,624 | $41,060 | 36.5% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 210 | 295 | $84,075 | $31,210 | 37.1% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 225 | 249 | $50,298 | $15,367 | 30.6% |
| 66821 | Removal of recurring cataract in lens capsule using a laser | Office | 2022 | 38 | 55 | $41,580 | $15,225 | 36.6% |
| 66982 | Complex removal of cataract with insertion of prosthetic lens | Facility | 2022 | 14 | 19 | $29,442 | $12,314 | 41.8% |
| 92083 | Exam of visual field with extended testing | Office | 2022 | 266 | 273 | $39,526 | $12,079 | 30.6% |
| 92133 | Imaging of optic nerve | Office | 2022 | 361 | 373 | $31,332 | $9,931 | 31.7% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 87 | 87 | $32,103 | $7,660 | 23.9% |
About Dr. Brian Chen, M.D
Dr. Brian Chen, M.D is a Internal Medicine healthcare provider based in San Gabriel, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 01/02/2010. The National Provider Identifier (NPI) number assigned to this provider is 1952631632.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Brian Chen, M.D has received a total of $11,660 in payments from pharmaceutical and medical device companies, with $452.98 received in 2024. These payments were reported across 137 transactions from 18 companies. The most common payment nature is "Food and Beverage" ($7,563).
As a Medicare-enrolled provider, Chen has provided services to 9,884 Medicare beneficiaries, totaling 11,030 services with total Medicare billing of $806,479. Data is available for 4 years (2020–2023), covering 57 distinct procedure/service records.
Practice Information
- Specialty Internal Medicine
- Other Specialties Ophthalmology, Ophthalmology
- Location San Gabriel, CA
- Active Since 01/02/2010
- Last Updated 08/07/2020
- Taxonomy Code 207R00000X
- Entity Type Individual
- Practice Solo Practitioner
- NPI Number 1952631632
Products in Payments
- ALPHAGAN P (Drug) $3,687
- XEN GLAUCOMA TREATMENT SYSTEM (Device) $1,157
- Tecnis 1-piece IOL (Device) $1,148
- ISTENT TRABECULAR MICRO-BYPASS STENT SYSTEM (Device) $536.35
- XEN (Device) $438.70
- AMVISC (Device) $436.08
- enVista MX60 IOL (Device) $427.15
- iStent Trabecular Micro-Bypass Stent System (Device) $275.96
- PROLENSA (Drug) $224.99
- Rhopressa (Drug) $185.60
- Tecnis Multifocal Family of 1-piece IOLS (Device) $180.77
- iStent Trabecular Micro-Bypass System Model iS3 (Device) $178.05
- TEPEZZA (Drug) $170.22
- VYZULTA (Drug) $168.45
- LOTEMAX GEL (Drug) $158.40
- iStent inject Trabecular Micro-Bypass Stent System (Device) $156.26
- ORA (Device) $146.45
- COMBIGAN (Drug) $128.12
- iStent inject W (Device) $127.96
- LOTEMAX SM (Drug) $125.00
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.
Internal Medicine Doctors in San Gabriel
Andrew Chen, M.d, M.D
Internal Medicine — Payments: $41,937
Su Lee, M.d, M.D
Internal Medicine — Payments: $33,698
Dr. Thomas Yu, M.d, M.D
Internal Medicine — Payments: $21,863
Dr. James Liu, M.d, M.D
Internal Medicine — Payments: $14,894
Dr. Hy Ngo, Md, MD
Internal Medicine — Payments: $12,764
Charles Lin, Md, MD
Internal Medicine — Payments: $8,663