Total Payments
$19,797
2024 Payments
$6,007
Companies
59
Transactions
927
Medicare Patients
475
Medicare Billing
$55,159
Payment Breakdown by Category
Food & Beverage$19,690 (99.5%)
Education$107.02 (0.5%)
Other$0.00 (0.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $19,690 | 922 | 99.5% |
| Education | $107.02 | 5 | 0.5% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | $2,066 | 87 | $0 (2024) |
| Janssen Pharmaceuticals, Inc | $1,436 | 65 | $0 (2024) |
| Amgen Inc. | $1,418 | 71 | $0 (2024) |
| ABBVIE INC. | $1,344 | 92 | $0 (2024) |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $1,195 | 40 | $0 (2024) |
| Lilly USA, LLC | $1,178 | 54 | $0 (2024) |
| SANOFI-AVENTIS U.S. LLC | $1,012 | 45 | $0 (2022) |
| Merck Sharp & Dohme LLC | $996.64 | 44 | $0 (2024) |
| Novo Nordisk Inc | $828.99 | 52 | $0 (2024) |
| GlaxoSmithKline, LLC. | $810.82 | 42 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $6,007 | 269 | Madrigal Pharmaceuticals ($576.45) |
| 2023 | $5,641 | 284 | AbbVie Inc. ($642.08) |
| 2022 | $1,844 | 82 | Biohaven Pharmaceutical Holding Company Ltd. ($358.58) |
| 2021 | $1,662 | 73 | AstraZeneca Pharmaceuticals LP ($355.98) |
| 2020 | $1,463 | 67 | Janssen Pharmaceuticals, Inc ($269.12) |
| 2019 | $1,087 | 47 | SANOFI-AVENTIS U.S. LLC ($296.20) |
| 2018 | $1,165 | 55 | SANOFI-AVENTIS U.S. LLC ($238.56) |
| 2017 | $928.92 | 50 | AstraZeneca Pharmaceuticals LP ($234.55) |
All Payment Transactions
927 individual payment records from CMS Open Payments — Page 1 of 38
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/23/2024 | Esperion Therapeutics, Inc. | NEXLETOL (Drug) | Food and Beverage | In-kind items and services | $5.88 | General |
| Category: ANTILIPEMIC AGENTS | ||||||
| 12/20/2024 | Paratek Pharmaceuticals, Inc. | NUZYRA (Drug) | Food and Beverage | In-kind items and services | $23.36 | General |
| Category: ANTIBIOTIC | ||||||
| 12/19/2024 | PFIZER INC. | ELIQUIS (Drug), NURTEC ODT | Food and Beverage | In-kind items and services | $26.10 | General |
| Category: CARDIOVASCULAR;METABOLIC DISEASE | ||||||
| 12/16/2024 | Lundbeck LLC | VYEPTI (Biological) | Food and Beverage | Cash or cash equivalent | $32.07 | General |
| Category: NEUROLOGY | ||||||
| 12/16/2024 | ABBVIE INC. | QULIPTA (Drug), UBRELVY | Food and Beverage | In-kind items and services | $7.97 | General |
| Category: NEUROSCIENCE | ||||||
| 12/13/2024 | Madrigal Pharmaceuticals | RESMETIROM (Drug) | Food and Beverage | In-kind items and services | $44.52 | General |
| Category: LIVER DISEASE | ||||||
| 12/13/2024 | Esperion Therapeutics, Inc. | NEXLETOL (Drug) | Food and Beverage | In-kind items and services | $14.31 | General |
| Category: ANTILIPEMIC AGENTS | ||||||
| 12/10/2024 | PFIZER INC. | NURTEC ODT (Drug), ZAVZPRET | Food and Beverage | In-kind items and services | $29.21 | General |
| Category: PAIN | ||||||
| 12/10/2024 | Salix Pharmaceuticals, a division of Bausch Health US, LLC | XIFAXAN (Drug) | Food and Beverage | In-kind items and services | $24.86 | General |
| Category: Gastroenterology | ||||||
| 12/10/2024 | ABBVIE INC. | UBRELVY (Drug) | Food and Beverage | In-kind items and services | $3.80 | General |
| Category: NEUROSCIENCE | ||||||
| 12/09/2024 | Dexcom, Inc. | Dexcom G6 Transmitter (Medical Supply) | Food and Beverage | In-kind items and services | $27.51 | General |
| Category: Endocrinology | ||||||
| 12/09/2024 | GlaxoSmithKline, LLC. | TRELEGY ELLIPTA (Drug) | Food and Beverage | In-kind items and services | $27.03 | General |
| Category: RESPIRATORY | ||||||
| 12/06/2024 | Madrigal Pharmaceuticals | RESMETIROM (Drug) | Food and Beverage | In-kind items and services | $32.72 | General |
| Category: LIVER DISEASE | ||||||
| 12/05/2024 | Esperion Therapeutics, Inc. | NEXLETOL (Drug) | Food and Beverage | In-kind items and services | $25.53 | General |
| Category: ANTILIPEMIC AGENTS | ||||||
| 12/05/2024 | Lundbeck LLC | VYEPTI (Biological) | Food and Beverage | Cash or cash equivalent | $20.07 | General |
| Category: NEUROLOGY | ||||||
| 12/05/2024 | Bayer Healthcare Pharmaceuticals Inc. | Kerendia (Drug) | Food and Beverage | In-kind items and services | $15.90 | General |
| Category: Cardio-renal | ||||||
| 12/05/2024 | ABBVIE INC. | DALVANCE (Drug) | Food and Beverage | In-kind items and services | $15.30 | General |
| Category: ANTI-INFECTIVE | ||||||
| 12/05/2024 | Merck Sharp & Dohme LLC | VERQUVO (Drug), VERQUVO | Food and Beverage | In-kind items and services | $12.22 | General |
| Category: CARDIOVASCULAR | ||||||
| 12/05/2024 | ABBVIE INC. | DALVANCE (Drug) | Food and Beverage | In-kind items and services | $0.88 | General |
| Category: ANTI-INFECTIVE | ||||||
| 12/04/2024 | ABBVIE INC. | DALVANCE (Drug) | Food and Beverage | In-kind items and services | $4.57 | General |
| Category: ANTI-INFECTIVE | ||||||
| 12/03/2024 | PFIZER INC. | PREVNAR 20 (Biological), COMIRNATY, ABRYSVO | Food and Beverage | In-kind items and services | $19.13 | General |
| Category: VACCINES | ||||||
| 11/29/2024 | Madrigal Pharmaceuticals | RESMETIROM (Drug) | Food and Beverage | In-kind items and services | $39.93 | General |
| Category: LIVER DISEASE | ||||||
| 11/26/2024 | Amgen Inc. | Otezla (Drug), Repatha | Food and Beverage | In-kind items and services | $10.78 | General |
| Category: Inflammation | ||||||
| 11/25/2024 | Bayer Healthcare Pharmaceuticals Inc. | Kerendia (Drug) | Food and Beverage | In-kind items and services | $23.65 | General |
| Category: Cardio-renal | ||||||
| 11/22/2024 | PFIZER INC. | NURTEC ODT (Drug), ZAVZPRET | Food and Beverage | In-kind items and services | $11.53 | General |
| Category: PAIN | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 4 | 137 | 287 | $57,350 | $18,244 |
| 2022 | 4 | 155 | 285 | $34,795 | $16,704 |
| 2021 | 4 | 151 | 274 | $30,072 | $16,743 |
| 2020 | 2 | 32 | 51 | $6,103 | $3,468 |
Total Patients
475
Total Services
897
Medicare Billing
$55,159
Procedure Codes
14
All Medicare Procedures & Services
14 procedure records from CMS Medicare Utilization
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 59 | 171 | $49,050 | $16,182 | 33.0% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 16 | 24 | $5,100 | $1,013 | 19.9% |
| 36415 | Insertion of needle into vein for collection of blood sample | Office | 2023 | 51 | 81 | $2,595 | $680.40 | 26.2% |
| 90674 | Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free | Office | 2023 | 11 | 11 | $605.00 | $368.39 | 60.9% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 52 | 103 | $18,025 | $8,586 | 47.6% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 47 | 113 | $14,650 | $7,312 | 49.9% |
| 90674 | Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free | Office | 2022 | 21 | 21 | $1,155 | $664.23 | 57.5% |
| 36415 | Insertion of needle into vein for collection of blood sample | Office | 2022 | 35 | 48 | $965.00 | $142.32 | 14.7% |
| 99213 | Established patient outpatient visit, total time 20-29 minutes | Office | 2021 | 46 | 130 | $15,250 | $9,063 | 59.4% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 51 | 83 | $13,147 | $7,146 | 54.4% |
| 90674 | Vaccine for influenza derived from cell cultures for administration into muscle, 0.5 ml dosage, quadrivalent, , preservative and antibiotic free | Office | 2021 | 13 | 13 | $715.00 | $389.22 | 54.4% |
| 36415 | Insertion of needle into vein for collection of blood sample | Office | 2021 | 41 | 48 | $960.00 | $144.00 | 15.0% |
| 99213 | Established patient office or other outpatient visit, typically 15 minutes | Office | 2020 | 18 | 34 | $3,570 | $2,076 | 58.2% |
| 99214 | Established patient office or other outpatient, visit typically 25 minutes | Office | 2020 | 14 | 17 | $2,533 | $1,392 | 54.9% |
About Dr. Constant Chan, M.D
Dr. Constant Chan, M.D is a Family Medicine healthcare provider based in Lynwood, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 07/31/2006. The National Provider Identifier (NPI) number assigned to this provider is 1730195645.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Constant Chan, M.D has received a total of $19,797 in payments from pharmaceutical and medical device companies, with $6,007 received in 2024. These payments were reported across 927 transactions from 59 companies. The most common payment nature is "Food and Beverage" ($19,690).
As a Medicare-enrolled provider, Chan has provided services to 475 Medicare beneficiaries, totaling 897 services with total Medicare billing of $55,159. Data is available for 4 years (2020–2023), covering 14 distinct procedure/service records.
Ad
Practice Information
- Specialty Family Medicine
- Location Lynwood, CA
- Active Since 07/31/2006
- Last Updated 03/07/2023
- Taxonomy Code 207Q00000X
- Entity Type Individual
- Practice Solo Practitioner
- NPI Number 1730195645
Products in Payments
- JARDIANCE (Drug) $1,421
- FARXIGA (Drug) $1,239
- XARELTO (Drug) $1,228
- NURTEC ODT (Drug) $697.11
- Kerendia (Drug) $619.51
- TRELEGY ELLIPTA (Drug) $597.02
- XIFAXAN (Drug) $595.87
- TOUJEO (Drug) $454.74
- VRAYLAR (Drug) $443.83
- Otezla (Drug) $427.50
- VERQUVO (Drug) $426.41
- RESMETIROM (Drug) $413.99
- UBRELVY (Drug) $402.09
- DUPIXENT (Biological) $393.61
- MOUNJARO (Drug) $382.48
- EVENITY (Biological) $370.70
- SOLIQUA 100/33 (Biological) $354.17
- NEXLETOL (Drug) $338.19
- QULIPTA (Drug) $320.68
- Ozempic (Drug) $286.76
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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