Total Payments
$5,509
2024 Payments
$267.99
Companies
9
Transactions
21
Medicare Patients
3,435
Medicare Billing
$353,397
Payment Breakdown by Category
Food & Beverage$5,509 (100.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $5,509 | 21 | 100.0% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Ironwood Pharmaceuticals, Inc | $3,733 | 4 | $0 (2023) |
| Gilead Sciences, Inc. | $1,069 | 9 | $0 (2024) |
| AstraZeneca Pharmaceuticals LP | $156.26 | 2 | $0 (2022) |
| Allergan Inc. | $114.88 | 1 | $0 (2017) |
| Boston Scientific Corporation | $99.74 | 1 | $0 (2020) |
| Covidien LP | $91.59 | 1 | $0 (2019) |
| Lilly USA, LLC | $88.97 | 1 | $0 (2018) |
| Celgene Corporation | $83.90 | 1 | $0 (2017) |
| AbbVie Inc. | $71.23 | 1 | $0 (2021) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $267.99 | 2 | Gilead Sciences, Inc. ($267.99) |
| 2023 | $125.00 | 1 | Ironwood Pharmaceuticals, Inc ($125.00) |
| 2022 | $281.41 | 3 | Ironwood Pharmaceuticals, Inc ($108.41) |
| 2021 | $71.23 | 1 | AbbVie Inc. ($71.23) |
| 2020 | $99.74 | 1 | Boston Scientific Corporation ($99.74) |
| 2019 | $333.16 | 3 | Gilead Sciences, Inc. ($241.57) |
| 2018 | $3,809 | 5 | Ironwood Pharmaceuticals, Inc ($3,500) |
| 2017 | $521.60 | 5 | Gilead Sciences Inc ($243.42) |
All Payment Transactions
21 individual payment records from CMS Open Payments
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/10/2024 | Gilead Sciences, Inc. | — | Food and Beverage | In-kind items and services | $146.18 | General |
| 07/26/2024 | Gilead Sciences, Inc. | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $121.81 | General |
| Category: HBV | ||||||
| 11/17/2023 | Ironwood Pharmaceuticals, Inc | Linzess (Drug) | Food and Beverage | Cash or cash equivalent | $125.00 | General |
| Category: GI | ||||||
| 10/20/2022 | Ironwood Pharmaceuticals, Inc | Linzess (Drug) | Food and Beverage | Cash or cash equivalent | $108.41 | General |
| Category: GI | ||||||
| 05/10/2022 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $76.86 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 04/28/2022 | Gilead Sciences, Inc. | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $96.14 | General |
| Category: HBV | ||||||
| 10/21/2021 | AbbVie Inc. | LINZESS (Drug) | Food and Beverage | In-kind items and services | $71.23 | General |
| Category: GASTROENTEROLOGY | ||||||
| 01/30/2020 | Boston Scientific Corporation | GENERAL - PAIN MANAGEMENT (Device) | Food and Beverage | In-kind items and services | $99.74 | General |
| Category: PAIN MANAGEMENT | ||||||
| 10/18/2019 | Gilead Sciences, Inc. | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $125.00 | General |
| Category: HBV | ||||||
| 05/29/2019 | Covidien LP | LigaSure (Device) | Food and Beverage | In-kind items and services | $91.59 | General |
| Category: Vessel Sealing | ||||||
| 01/18/2019 | Gilead Sciences, Inc. | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $116.57 | General |
| Category: HBV | ||||||
| 10/26/2018 | Gilead Sciences, Inc. | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $102.35 | General |
| Category: HBV | ||||||
| 08/17/2018 | Gilead Sciences, Inc. | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $117.89 | General |
| Category: HBV | ||||||
| 08/07/2018 | Lilly USA, LLC | — | Food and Beverage | In-kind items and services | $88.97 | General |
| 05/24/2018 | Ironwood Pharmaceuticals, Inc | DUZALLO (Drug) | Food and Beverage | In-kind items and services | $125.00 | General |
| Category: Rheumatology | ||||||
| 02/22/2018 | Ironwood Pharmaceuticals, Inc | LINZESS (Drug), VIBERZI, LINZESS | Food and Beverage | In-kind items and services | $3,375.00 | General |
| Category: Gastroenterology | ||||||
| 12/08/2017 | Gilead Sciences Inc | — | Food and Beverage | In-kind items and services | $123.33 | General |
| 06/22/2017 | AstraZeneca Pharmaceuticals LP | SYMBICORT (Drug) | Food and Beverage | In-kind items and services | $79.40 | General |
| Category: Respiratory | ||||||
| 04/13/2017 | Gilead Sciences Inc | Vemlidy (Drug) | Food and Beverage | In-kind items and services | $120.09 | General |
| Category: HBV | ||||||
| 02/16/2017 | Celgene Corporation | Otezla (Drug) | Food and Beverage | In-kind items and services | $83.90 | General |
| Category: Dermatology | ||||||
| 02/10/2017 | Allergan Inc. | VIBERZI (Drug) | Food and Beverage | In-kind items and services | $114.88 | General |
| Category: GASTROENTEROLOGY | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 11 | 835 | 1,234 | $424,991 | $60,195 |
| 2022 | 11 | 844 | 1,282 | $439,172 | $69,529 |
| 2021 | 13 | 867 | 1,289 | $419,981 | $121,473 |
| 2020 | 16 | 889 | 1,260 | $356,930 | $102,200 |
Total Patients
3,435
Total Services
5,065
Medicare Billing
$353,397
Procedure Codes
51
All Medicare Procedures & Services
51 procedure records from CMS Medicare Utilization — Page 1 of 3
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 335 | 727 | $274,806 | $37,871 | 13.8% |
| 90694 | Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | Office | 2023 | 68 | 70 | $14,788 | $5,296 | 35.8% |
| 90677 | Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Office | 2023 | 13 | 13 | $10,140 | $3,658 | 36.1% |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 2023 | 219 | 219 | $84,096 | $3,627 | 4.3% |
| G0008 | Administration of influenza virus vaccine | Office | 2023 | 78 | 80 | $6,320 | $2,736 | 43.3% |
| G0438 | Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | Office | 2023 | 14 | 14 | $6,832 | $2,008 | 29.4% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 20 | 22 | $11,616 | $1,773 | 15.3% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 13 | 13 | $6,357 | $1,449 | 22.8% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 20 | 20 | $5,360 | $806.94 | 15.1% |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Office | 2023 | 41 | 42 | $3,570 | $492.48 | 13.8% |
| G0009 | Administration of pneumococcal vaccine | Office | 2023 | 14 | 14 | $1,106 | $478.80 | 43.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 319 | 754 | $286,520 | $41,054 | 14.3% |
| 90694 | Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | Office | 2022 | 70 | 70 | $13,790 | $4,918 | 35.7% |
| 90677 | Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Office | 2022 | 17 | 17 | $13,260 | $4,735 | 35.7% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 35 | 35 | $17,220 | $4,388 | 25.5% |
| G0402 | Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment | Office | 2022 | 18 | 18 | $8,910 | $3,333 | 37.4% |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 2022 | 185 | 185 | $71,965 | $3,101 | 4.3% |
| G0438 | Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | Office | 2022 | 19 | 19 | $9,405 | $2,782 | 29.6% |
| G0008 | Administration of influenza virus vaccine | Office | 2022 | 79 | 81 | $8,258 | $2,723 | 33.0% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 18 | 18 | $4,860 | $949.07 | 19.5% |
| G0009 | Administration of pneumococcal vaccine | Office | 2022 | 25 | 25 | $2,404 | $841.47 | 35.0% |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Office | 2022 | 59 | 60 | $2,580 | $704.86 | 27.3% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 298 | 658 | $259,910 | $68,169 | 26.2% |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 2021 | 177 | 177 | $71,331 | $25,952 | 36.4% |
| 90662 | Vaccine for influenza for injection into muscle, split virus, preservation free | Office | 2021 | 93 | 93 | $16,053 | $6,000 | 37.4% |
About Dr. Christopher Sun, MD
Dr. Christopher Sun, MD is a Internal Medicine healthcare provider based in Redondo Beach, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 05/09/2008. The National Provider Identifier (NPI) number assigned to this provider is 1245407105.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Christopher Sun, MD has received a total of $5,509 in payments from pharmaceutical and medical device companies, with $267.99 received in 2024. These payments were reported across 21 transactions from 9 companies. The most common payment nature is "Food and Beverage" ($5,509).
As a Medicare-enrolled provider, Sun has provided services to 3,435 Medicare beneficiaries, totaling 5,065 services with total Medicare billing of $353,397. Data is available for 4 years (2020–2023), covering 51 distinct procedure/service records.
Ad
Practice Information
- Specialty Internal Medicine
- Location Redondo Beach, CA
- Active Since 05/09/2008
- Last Updated 04/20/2021
- Taxonomy Code 207R00000X
- Entity Type Individual
- NPI Number 1245407105
Products in Payments
- LINZESS (Drug) $3,446
- Vemlidy (Drug) $799.85
- Linzess (Drug) $233.41
- DUZALLO (Drug) $125.00
- VIBERZI (Drug) $114.88
- GENERAL - PAIN MANAGEMENT (Device) $99.74
- LigaSure (Device) $91.59
- Otezla (Drug) $83.90
- SYMBICORT (Drug) $79.40
- FARXIGA (Drug) $76.86
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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