Total Payments
$9,214
2024 Payments
$1,175
Companies
41
Transactions
521
Medicare Patients
3,194
Medicare Billing
$379,816
Payment Breakdown by Category
Food & Beverage$9,135 (99.1%)
Gifts$71.52 (0.8%)
Education$7.00 (0.1%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $9,135 | 519 | 99.1% |
| Gift | $71.52 | 1 | 0.8% |
| Education | $7.00 | 1 | 0.1% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| ABBVIE INC. | $3,032 | 155 | $0 (2024) |
| Takeda Pharmaceuticals U.S.A., Inc. | $618.71 | 55 | $0 (2024) |
| Celgene Corporation | $414.10 | 30 | $0 (2024) |
| Janssen Biotech, Inc. | $395.00 | 28 | $0 (2024) |
| Intercept Pharmaceuticals, Inc. | $384.94 | 17 | $0 (2024) |
| Allergan, Inc. | $366.21 | 34 | $0 (2020) |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $351.78 | 24 | $0 (2023) |
| NESTLE HEALTHCARE NUTRITION INC. | $301.78 | 19 | $0 (2023) |
| PFIZER INC. | $279.60 | 15 | $0 (2024) |
| Gilead Sciences, Inc. | $275.66 | 13 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $1,175 | 55 | ABBVIE INC. ($383.66) |
| 2023 | $1,057 | 57 | AbbVie Inc. ($353.91) |
| 2022 | $1,532 | 74 | ABBVIE INC. ($578.02) |
| 2021 | $1,308 | 66 | AbbVie Inc. ($460.81) |
| 2020 | $778.20 | 39 | AbbVie Inc. ($375.26) |
| 2019 | $773.95 | 50 | AbbVie, Inc. ($280.90) |
| 2018 | $1,235 | 92 | AbbVie, Inc. ($377.63) |
| 2017 | $1,354 | 88 | AbbVie, Inc. ($222.13) |
All Payment Transactions
521 individual payment records from CMS Open Payments — Page 1 of 21
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/19/2024 | GENZYME CORPORATION | DUPIXENT (Biological) | Food and Beverage | In-kind items and services | $31.24 | General |
| Category: Immunology | ||||||
| 12/16/2024 | ABBVIE INC. | RINVOQ (Biological), SKYRIZI | Food and Beverage | In-kind items and services | $21.61 | General |
| Category: IMMUNOLOGY | ||||||
| 12/09/2024 | QOL Medical, LLC | SUCRAID (Drug) | Food and Beverage | Cash or cash equivalent | $26.33 | General |
| Category: THERAPY FOR CSID | ||||||
| 12/05/2024 | Biocon Biologics Inc | Hulio (Drug) | Food and Beverage | In-kind items and services | $23.04 | General |
| Category: Rheumatology | ||||||
| 12/04/2024 | ABBVIE INC. | CREON (Drug), LINZESS, VIBERZI | Food and Beverage | In-kind items and services | $13.73 | General |
| Category: ENDOCRINOLOGY | ||||||
| 11/19/2024 | ABBVIE INC. | RINVOQ (Biological), SKYRIZI | Food and Beverage | In-kind items and services | $22.30 | General |
| Category: IMMUNOLOGY | ||||||
| 11/18/2024 | Regeneron Healthcare Solutions, Inc. | DUPIXENT (Biological) | Food and Beverage | In-kind items and services | $16.78 | General |
| Category: INFLAMMATION AND IMMUNOLOGY | ||||||
| 11/11/2024 | PFIZER INC. | XELJANZ (Drug), VELSIPITY | Food and Beverage | In-kind items and services | $20.77 | General |
| Category: GASTROINTESTINAL;INFLAMMATION;OPHTHALMOLOGY;TRANSPLANT | ||||||
| 11/07/2024 | Celltrion USA Inc. | ZYMFENTRA (Biological) | Food and Beverage | In-kind items and services | $45.40 | General |
| Category: GASTROENTEROLOGY | ||||||
| 11/05/2024 | Intercept Pharmaceuticals, Inc. | OCALIVA (Drug) | Food and Beverage | In-kind items and services | $19.15 | General |
| Category: Hepatology / Gastroenterology | ||||||
| 10/30/2024 | QOL Medical, LLC | SUCRAID (Drug) | Food and Beverage | Cash or cash equivalent | $30.00 | General |
| Category: THERAPY FOR CSID | ||||||
| 10/22/2024 | Takeda Pharmaceuticals U.S.A., Inc. | ENTYVIO (Biological) | Food and Beverage | In-kind items and services | $12.26 | General |
| Category: INTERNAL MEDICINE | ||||||
| 10/17/2024 | Gilead Sciences, Inc. | — | Food and Beverage | In-kind items and services | $14.53 | General |
| 10/16/2024 | ABBVIE INC. | RINVOQ (Biological), SKYRIZI | Food and Beverage | In-kind items and services | $26.63 | General |
| Category: IMMUNOLOGY | ||||||
| 09/30/2024 | Takeda Pharmaceuticals U.S.A., Inc. | EOHILIA (Drug) | Food and Beverage | In-kind items and services | $23.26 | General |
| Category: INTERNAL MEDICINE | ||||||
| 09/26/2024 | PFIZER INC. | XELJANZ (Drug), VELSIPITY | Food and Beverage | In-kind items and services | $23.80 | General |
| Category: GASTROINTESTINAL;INFLAMMATION;OPHTHALMOLOGY;TRANSPLANT | ||||||
| 09/24/2024 | Janssen Biotech, Inc. | TREMFYA (Drug), SIMPONI, SIMPONI ARIA | Food and Beverage | In-kind items and services | $15.37 | General |
| Category: Immunology | ||||||
| 09/19/2024 | Celgene Corporation | ZEPOSIA (Drug) | Food and Beverage | Cash or cash equivalent | $13.61 | General |
| Category: Neuroscience | ||||||
| 09/12/2024 | ABBVIE INC. | LINZESS (Drug), CREON | Food and Beverage | In-kind items and services | $13.57 | General |
| Category: GASTROENTEROLOGY | ||||||
| 08/27/2024 | Gilead Sciences, Inc. | — | Food and Beverage | In-kind items and services | $14.53 | General |
| 08/20/2024 | Ferring Pharmaceuticals Inc. | REBYOTA (Biological) | Food and Beverage | In-kind items and services | $14.79 | General |
| Category: GASTROENTEROLOGY | ||||||
| 08/14/2024 | QOL Medical, LLC | SUCRAID (Drug) | Food and Beverage | Cash or cash equivalent | $31.22 | General |
| Category: THERAPY FOR CSID | ||||||
| 08/12/2024 | Janssen Biotech, Inc. | TREMFYA (Drug), SIMPONI, SIMPONI ARIA | Food and Beverage | In-kind items and services | $21.81 | General |
| Category: Immunology | ||||||
| 07/30/2024 | IRONWOOD PHARMACEUTICALS, INC | Linzess (Drug) | Food and Beverage | Cash or cash equivalent | $21.77 | General |
| Category: GI | ||||||
| 07/29/2024 | ABBVIE INC. | RINVOQ (Biological), SKYRIZI | Food and Beverage | In-kind items and services | $23.30 | General |
| Category: IMMUNOLOGY | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 12 | 834 | 850 | $483,923 | $101,208 |
| 2022 | 11 | 763 | 781 | $464,785 | $91,730 |
| 2021 | 16 | 920 | 943 | $572,455 | $112,706 |
| 2020 | 14 | 677 | 696 | $397,149 | $74,172 |
Total Patients
3,194
Total Services
3,270
Medicare Billing
$379,816
Procedure Codes
53
All Medicare Procedures & Services
53 procedure records from CMS Medicare Utilization — Page 1 of 3
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 2023 | 124 | 124 | $94,984 | $21,803 | 23.0% |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Facility | 2023 | 95 | 96 | $95,424 | $19,261 | 20.2% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 85 | 85 | $28,050 | $10,053 | 35.8% |
| G0121 | Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 2023 | 57 | 57 | $43,719 | $10,039 | 23.0% |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Facility | 2023 | 103 | 103 | $82,915 | $9,973 | 12.0% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 95 | 110 | $23,650 | $9,538 | 40.3% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Office | 2023 | 101 | 101 | $21,816 | $7,087 | 32.5% |
| 45380 | Biopsy of large bowel using a flexible endoscope | Facility | 2023 | 54 | 54 | $51,246 | $6,320 | 12.3% |
| 45378 | Diagnostic exam of large bowel using a flexible endoscope | Facility | 2023 | 27 | 27 | $20,709 | $3,229 | 15.6% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 49 | 49 | $7,154 | $2,852 | 39.9% |
| 43450 | Dilation of esophagus | Facility | 2023 | 33 | 33 | $14,157 | $1,009 | 7.1% |
| 82272 | Stool analysis for blood, by peroxidase activity | Office | 2023 | 11 | 11 | $99.00 | $45.65 | 46.1% |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Facility | 2022 | 92 | 93 | $92,442 | $18,081 | 19.6% |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 2022 | 100 | 101 | $77,366 | $18,076 | 23.4% |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Facility | 2022 | 126 | 127 | $102,235 | $12,516 | 12.2% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 85 | 99 | $21,285 | $9,527 | 44.8% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 67 | 67 | $22,110 | $7,766 | 35.1% |
| G0121 | Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Facility | 2022 | 36 | 36 | $27,612 | $6,415 | 23.2% |
| 45380 | Biopsy of large bowel using a flexible endoscope | Facility | 2022 | 60 | 60 | $56,940 | $6,387 | 11.2% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Office | 2022 | 83 | 83 | $17,928 | $5,083 | 28.4% |
| 45378 | Diagnostic exam of large bowel using a flexible endoscope | Facility | 2022 | 29 | 29 | $22,425 | $4,176 | 18.6% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 43 | 44 | $6,424 | $2,449 | 38.1% |
| 43450 | Dilation of esophagus | Facility | 2022 | 42 | 42 | $18,018 | $1,254 | 7.0% |
| 45385 | Removal of polyps or growths in large bowel using an endoscope (colonoscopy) using a mechanical snare | Facility | 2021 | 151 | 151 | $150,094 | $29,680 | 19.8% |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | Facility | 2021 | 84 | 84 | $64,344 | $15,316 | 23.8% |
About Dr. Leon Tsai, M.D
Dr. Leon Tsai, M.D is a Gastroenterology healthcare provider based in Tucson, Arizona. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 12/21/2005. The National Provider Identifier (NPI) number assigned to this provider is 1912983883.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Leon Tsai, M.D has received a total of $9,214 in payments from pharmaceutical and medical device companies, with $1,175 received in 2024. These payments were reported across 521 transactions from 41 companies. The most common payment nature is "Food and Beverage" ($9,135).
As a Medicare-enrolled provider, Tsai has provided services to 3,194 Medicare beneficiaries, totaling 3,270 services with total Medicare billing of $379,816. Data is available for 4 years (2020–2023), covering 53 distinct procedure/service records.
Ad
Practice Information
- Specialty Gastroenterology
- Location Tucson, AZ
- Active Since 12/21/2005
- Last Updated 07/09/2007
- Taxonomy Code 207RG0100X
- Entity Type Individual
- NPI Number 1912983883
Products in Payments
- HUMIRA (Biological) $759.92
- ZEPOSIA (Drug) $539.10
- Humira (Biological) $484.03
- STELARA (Biological) $481.52
- SKYRIZI (Biological) $431.98
- RINVOQ (Biological) $400.63
- ZENPEP (Drug) $394.93
- OCALIVA (Drug) $354.72
- LINZESS (Drug) $340.93
- XELJANZ (Drug) $268.31
- VIBERZI (Drug) $256.39
- XIFAXAN (Drug) $223.50
- DUPIXENT (Biological) $222.64
- Creon (Drug) $200.41
- Cimzia (Drug) $179.53
- Linzess (Drug) $155.13
- CIMZIA (Drug) $148.73
- CREON (Drug) $136.99
- YOSPRALA (Drug) $133.12
- Epclusa (Drug) $127.99
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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