Total Payments
$10,782
2024 Payments
$1,229
Companies
31
Transactions
315
Medicare Patients
2,475
Medicare Billing
$408,624
Payment Breakdown by Category
Food & Beverage$8,734 (81.0%)
Travel$2,014 (18.7%)
Education$33.39 (0.3%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $8,734 | 303 | 81.0% |
| Travel and Lodging | $2,014 | 11 | 18.7% |
| Education | $33.39 | 1 | 0.3% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Abbott Laboratories | $4,522 | 83 | $0 (2024) |
| Relievant Medsystems, Inc. | $1,175 | 10 | $0 (2023) |
| Boston Scientific Corporation | $1,013 | 50 | $0 (2024) |
| Vertiflex, Inc. | $672.40 | 3 | $0 (2017) |
| Nevro Corp. | $523.85 | 22 | $0 (2024) |
| PFIZER INC. | $443.56 | 64 | $0 (2023) |
| Saluda Medical Americas, Inc. | $323.07 | 2 | $0 (2024) |
| Spinal Simplicity, LLC | $321.86 | 3 | $0 (2022) |
| Medtronic USA, Inc. | $280.25 | 11 | $0 (2020) |
| Medtronic, Inc. | $263.40 | 9 | $0 (2023) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $1,229 | 38 | Boston Scientific Corporation ($442.04) |
| 2023 | $1,743 | 34 | Relievant Medsystems, Inc. ($1,175) |
| 2022 | $1,062 | 31 | Spinal Simplicity, LLC ($321.86) |
| 2021 | $331.82 | 15 | Abbott Laboratories ($102.30) |
| 2020 | $341.94 | 15 | Abbott Laboratories ($183.13) |
| 2019 | $1,273 | 29 | Abbott Laboratories ($803.71) |
| 2018 | $2,011 | 64 | Abbott Laboratories ($1,438) |
| 2017 | $2,790 | 89 | Abbott Laboratories ($1,404) |
All Payment Transactions
315 individual payment records from CMS Open Payments — Page 1 of 13
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/12/2024 | Abbott Laboratories | PROCLAIM (Device) | Food and Beverage | In-kind items and services | $14.92 | General |
| Category: Neuromodulation | ||||||
| 12/10/2024 | Abbott Laboratories | ETERNA (Device) | Food and Beverage | In-kind items and services | $14.36 | General |
| Category: Neuromodulation | ||||||
| 11/18/2024 | VERTEX PHARMACEUTICALS INCORPORATED | — | Food and Beverage | In-kind items and services | $33.07 | General |
| 11/05/2024 | Collegium Pharmaceutical, Inc. | Belbuca (Drug) | Food and Beverage | Cash or cash equivalent | $17.33 | General |
| Category: Opioid Analgesic | ||||||
| 10/17/2024 | VERTEX PHARMACEUTICALS INCORPORATED | — | Food and Beverage | In-kind items and services | $34.63 | General |
| 10/16/2024 | Abbott Laboratories | PROCLAIM (Device) | Food and Beverage | In-kind items and services | $57.04 | General |
| Category: Neuromodulation | ||||||
| 10/16/2024 | Abbott Laboratories | ETERNA (Device) | Food and Beverage | In-kind items and services | $17.33 | General |
| Category: Neuromodulation | ||||||
| 10/11/2024 | Collegium Pharmaceutical, Inc. | XTAMPZA (Drug) | Food and Beverage | Cash or cash equivalent | $22.35 | General |
| Category: Opioid Analgesic | ||||||
| 10/05/2024 | Boston Scientific Corporation | WaveWriter Alpha Prime 16 (Device) | Food and Beverage | In-kind items and services | $59.27 | General |
| Category: WaveWriter Alpha_NMD | ||||||
| 10/03/2024 | Saluda Medical Americas, Inc. | Evoke (Device) | Food and Beverage | In-kind items and services | $185.73 | General |
| Category: Spinal Cord Stimulator | ||||||
| 10/01/2024 | Curonix LLC | PNS FREEDOM-4A PERMANENT NEUROSTIMULATOR RECEIVER KIT CHANNEL A (Device) | Food and Beverage | In-kind items and services | $23.84 | General |
| Category: PAIN MANAGEMENT | ||||||
| 09/23/2024 | Boston Scientific Corporation | WaveWriter Alpha Prime 16 (Device) | Food and Beverage | In-kind items and services | $24.22 | General |
| Category: WaveWriter Alpha_NMD | ||||||
| 09/17/2024 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $110.64 | General |
| Category: General - Pain Management_NMD | ||||||
| 09/17/2024 | Boston Scientific Corporation | WaveWriter Alpha Prime 16 (Device) | Food and Beverage | In-kind items and services | $6.40 | General |
| Category: WaveWriter Alpha_NMD | ||||||
| 09/11/2024 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $7.21 | General |
| Category: General - Pain Management_NMD | ||||||
| 09/03/2024 | Abbott Laboratories | PROCLAIM (Device) | Food and Beverage | In-kind items and services | $10.10 | General |
| Category: Neuromodulation | ||||||
| 08/26/2024 | Nevro Corp. | Senza (Device) | Food and Beverage | In-kind items and services | $15.18 | General |
| Category: Spinal Cord Stimulator | ||||||
| 08/19/2024 | SI-BONE, INC. | — | Food and Beverage | Cash or cash equivalent | $26.78 | General |
| 08/15/2024 | Virtus Pharmaceuticals LLC | LEVORPHANOL TARTRATE (Drug) | Food and Beverage | In-kind items and services | $24.44 | General |
| Category: ANALGESICS - OPIOID | ||||||
| 08/12/2024 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $53.94 | General |
| Category: General - Pain Management_NMD | ||||||
| 08/12/2024 | Boston Scientific Corporation | — | Food and Beverage | In-kind items and services | $22.68 | General |
| Category: General - Pain Management_NMD | ||||||
| 07/22/2024 | Abbott Laboratories | ETERNA (Device) | Food and Beverage | In-kind items and services | $56.96 | General |
| Category: Neuromodulation | ||||||
| 06/13/2024 | SPR Therapeutics, Inc | SPRINT PNS System (Device) | Food and Beverage | Cash or cash equivalent | $19.34 | General |
| Category: Pain management | ||||||
| 06/11/2024 | Boston Scientific Corporation | Superion Indirect Decompression System (Device) | Food and Beverage | In-kind items and services | $17.78 | General |
| Category: Vertiflex Superion_NMD | ||||||
| 06/04/2024 | Boston Scientific Corporation | WaveWriter Alpha Prime 16 (Device) | Food and Beverage | In-kind items and services | $25.92 | General |
| Category: WaveWriter Alpha_NMD | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 15 | 768 | 3,080 | $238,906 | $121,427 |
| 2022 | 16 | 667 | 2,864 | $232,186 | $121,869 |
| 2021 | 11 | 565 | 2,312 | $187,943 | $96,869 |
| 2020 | 8 | 475 | 1,998 | $157,826 | $68,459 |
Total Patients
2,475
Total Services
10,254
Medicare Billing
$408,624
Procedure Codes
50
All Medicare Procedures & Services
50 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 241 | 1,406 | $144,818 | $72,111 | 49.8% |
| 62323 | Injection of substance into lower spine canal using imaging guidance | Office | 2023 | 43 | 69 | $21,183 | $14,026 | 66.2% |
| 64635 | Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint | Office | 2023 | 13 | 14 | $11,895 | $7,122 | 59.9% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 46 | 59 | $8,614 | $5,708 | 66.3% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 47 | 47 | $10,857 | $5,529 | 50.9% |
| 64636 | Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint | Office | 2023 | 13 | 14 | $5,290 | $4,028 | 76.1% |
| 64493 | Injection of lower or sacral spine facet joint using imaging guidance, single level | Office | 2023 | 13 | 16 | $6,502 | $3,471 | 53.4% |
| 95886 | Needle measurement of electrical activity in arm or leg muscles, complete study | Office | 2023 | 14 | 28 | $3,920 | $2,174 | 55.5% |
| 80305 | Testing for presence of drug, read by direct observation | Office | 2023 | 124 | 160 | $13,760 | $1,976 | 14.4% |
| 64494 | Injection of lower or sacral spine facet joint using imaging guidance, second level | Office | 2023 | 13 | 16 | $3,102 | $1,781 | 57.4% |
| G3002 | Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan tha | Office | 2023 | 22 | 22 | $1,760 | $1,346 | 76.4% |
| 20610 | Aspiration and/or injection of fluid from large joint | Office | 2023 | 17 | 21 | $2,373 | $1,237 | 52.1% |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Office | 2023 | 95 | 634 | $2,536 | $535.72 | 21.1% |
| Q9965 | Low osmolar contrast material, 100-199 mg/ml iodine concentration, per ml | Office | 2023 | 51 | 344 | $1,376 | $361.46 | 26.3% |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | Office | 2023 | 16 | 230 | $920.00 | $21.44 | 2.3% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 217 | 1,353 | $139,359 | $71,663 | 51.4% |
| 62323 | Injection of substance into lower spine canal using imaging guidance | Office | 2022 | 47 | 69 | $21,183 | $13,898 | 65.6% |
| 64635 | Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint | Office | 2022 | 13 | 15 | $13,115 | $7,767 | 59.2% |
| 64493 | Injection of lower or sacral spine facet joint using imaging guidance, single level | Office | 2022 | 16 | 26 | $10,790 | $5,480 | 50.8% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 42 | 42 | $9,702 | $4,964 | 51.2% |
| 64636 | Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint | Office | 2022 | 13 | 15 | $5,833 | $4,612 | 79.1% |
| 64494 | Injection of lower or sacral spine facet joint using imaging guidance, second level | Office | 2022 | 16 | 26 | $5,148 | $3,019 | 58.6% |
| 95886 | Needle measurement of electrical activity in arm or leg muscles, complete study | Office | 2022 | 17 | 34 | $4,760 | $2,850 | 59.9% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 18 | 26 | $3,796 | $2,478 | 65.3% |
| 95910 | Nerve conduction, 7-8 studies | Office | 2022 | 12 | 12 | $3,600 | $1,646 | 45.7% |
About Dr. Hamilton Chen, MD
Dr. Hamilton Chen, MD is a Pain Medicine healthcare provider based in Riverside, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 08/27/2009. The National Provider Identifier (NPI) number assigned to this provider is 1700019528.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Hamilton Chen, MD has received a total of $10,782 in payments from pharmaceutical and medical device companies, with $1,229 received in 2024. These payments were reported across 315 transactions from 31 companies. The most common payment nature is "Food and Beverage" ($8,734).
As a Medicare-enrolled provider, Chen has provided services to 2,475 Medicare beneficiaries, totaling 10,254 services with total Medicare billing of $408,624. Data is available for 4 years (2020–2023), covering 50 distinct procedure/service records.
Ad
Practice Information
- Specialty Pain Medicine
- Location Riverside, CA
- Active Since 08/27/2009
- Last Updated 05/18/2016
- Taxonomy Code 2081P2900X
- Entity Type Individual
- NPI Number 1700019528
Products in Payments
- Proclaim Family of SCS IPGs (Device) $2,115
- Intracept (Device) $1,187
- DRG leads (Device) $792.69
- Superion ISS (Device) $672.40
- PROCLAIM (Device) $490.95
- SCS IPGs (Device) $381.10
- Senza Spinal Cord Stimulation System (Device) $360.75
- LYRICA (Drug) $360.58
- WaveWriter Alpha Prime 16 (Device) $354.10
- HA MINUTEMAN G3-R (Device) $321.86
- INTELLIS ADAPTIVESTIM (Device) $214.08
- iFuse Implant (Device) $208.78
- DRG IPGs (Device) $208.53
- INTELLIS (Device) $198.78
- Evoke (Device) $185.73
- Neuromodulation Dspsbls and Accs (Device) $144.90
- Evoke SCS (Device) $137.34
- Radiofrequency Therapy (Device) $109.09
- Proclaim IPG (Device) $102.30
- ETERNA (Device) $100.34
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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