Total Payments
$107,014
2024 Payments
$10,556
Companies
33
Transactions
165
Medicare Patients
2,731
Medicare Billing
$402,041
Payment Breakdown by Category
Consulting$83,157 (77.7%)
Other$9,100 (8.5%)
Food & Beverage$8,729 (8.2%)
Travel$6,022 (5.6%)
Education$6.60 (0.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Consulting Fee | $83,157 | 38 | 77.7% |
| Honoraria | $9,100 | 4 | 8.5% |
| Food and Beverage | $8,729 | 100 | 8.2% |
| Travel and Lodging | $6,022 | 22 | 5.6% |
| Education | $6.60 | 1 | 0.0% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Merck Sharp & Dohme LLC | $28,933 | 28 | $0 (2023) |
| UROGEN PHARMA, INC. | $18,665 | 18 | $0 (2024) |
| PFIZER INC. | $12,795 | 12 | $0 (2018) |
| PROGENICS PHARMACEUTICALS, INC. | $8,496 | 6 | $0 (2024) |
| Photocure Inc | $8,300 | 24 | $0 (2024) |
| Janssen Scientific Affairs, LLC | $8,282 | 12 | $0 (2022) |
| Janssen Products, LP | $5,459 | 7 | $0 (2017) |
| Ferring Pharmaceuticals Inc. | $3,065 | 6 | $0 (2024) |
| Janssen Biotech, Inc. | $1,940 | 6 | $0 (2024) |
| Astellas Pharma Global Development | $1,755 | 1 | $0 (2023) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $10,556 | 19 | PROGENICS PHARMACEUTICALS, INC. ($4,800) |
| 2023 | $12,664 | 23 | UroGen Pharma, Inc. ($4,194) |
| 2022 | $14,797 | 24 | UroGen Pharma, Inc. ($6,334) |
| 2021 | $12,093 | 10 | UROGEN PHARMA, INC. ($7,721) |
| 2020 | $6,890 | 6 | Merck Sharp & Dohme Corporation ($3,000) |
| 2019 | $9,411 | 15 | Merck Sharp & Dohme Corporation ($6,364) |
| 2018 | $26,800 | 40 | Merck Sharp & Dohme Corporation ($12,663) |
| 2017 | $13,804 | 28 | Janssen Products, LP ($5,459) |
All Payment Transactions
165 individual payment records from CMS Open Payments — Page 1 of 7
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/05/2024 | Ferring Pharmaceuticals Inc. | ADSTILADRIN (Biological) | Food and Beverage | In-kind items and services | $37.49 | General |
| Category: ONCOLOGY | ||||||
| 11/15/2024 | Ferring Pharmaceuticals Inc. | ADSTILADRIN (Biological) | Food and Beverage | In-kind items and services | $98.11 | General |
| Category: ONCOLOGY | ||||||
| 11/04/2024 | Ferring Pharmaceuticals Inc. | ADSTILADRIN (Biological) | Consulting Fee | Cash or cash equivalent | $2,604.00 | General |
| Category: ONCOLOGY | ||||||
| 10/26/2024 | Ferring Pharmaceuticals Inc. | — | Food and Beverage | In-kind items and services | $91.82 | General |
| 10/25/2024 | Ferring Pharmaceuticals Inc. | ADSTILADRIN (Biological) | Food and Beverage | In-kind items and services | $112.10 | General |
| Category: ONCOLOGY | ||||||
| 10/01/2024 | IMMUNITYBIO, INC. | ANKTIVA (Drug) | Food and Beverage | In-kind items and services | $67.46 | General |
| Category: Immunotherapy | ||||||
| 09/25/2024 | Janssen Biotech, Inc. | BALVERSA (Drug) | Food and Beverage | In-kind items and services | $85.19 | General |
| Category: Oncology | ||||||
| 09/19/2024 | Photocure Inc | CYSVIEW (Drug) | Food and Beverage | In-kind items and services | $103.70 | General |
| Category: ONCOLOGY | ||||||
| 09/11/2024 | Provepharm Inc. | BLUDIGO (Drug) | Education | In-kind items and services | $6.60 | General |
| Category: MARKER DYE | ||||||
| 08/23/2024 | UROGEN PHARMA, INC. | JELMYTO (Drug) | Food and Beverage | In-kind items and services | $16.31 | General |
| Category: UROTHELIAL CANCER | ||||||
| 08/22/2024 | Ferring Pharmaceuticals Inc. | ADSTILADRIN (Biological) | Food and Beverage | In-kind items and services | $121.30 | General |
| Category: ONCOLOGY | ||||||
| 05/31/2024 | Provepharm Inc. | BLUDIGO (Drug) | Consulting Fee | Cash or cash equivalent | $1,600.00 | General |
| Category: MARKER DYE | ||||||
| 05/05/2024 | Janssen Biotech, Inc. | ERLEADA (Drug), AKEEGA | Food and Beverage | In-kind items and services | $105.91 | General |
| Category: Oncology | ||||||
| 05/03/2024 | Janssen Biotech, Inc. | ERLEADA (Drug) | Food and Beverage | In-kind items and services | $17.90 | General |
| Category: Oncology | ||||||
| 05/02/2024 | Photocure Inc | CYSVIEW (Drug) | Food and Beverage | In-kind items and services | $192.84 | General |
| Category: ONCOLOGY | ||||||
| 04/12/2024 | Genentech, Inc. | — | Consulting Fee | Cash or cash equivalent | $352.50 | General |
| 03/04/2024 | Telix Pharmaceuticals | ILLUCCIX (Drug), ILLUCCIX | Food and Beverage | In-kind items and services | $100.14 | General |
| Category: PROSTATE CANCER THERAPY | ||||||
| 02/01/2024 | PROGENICS PHARMACEUTICALS, INC. | PYLARIFY (Drug) | Consulting Fee | Cash or cash equivalent | $4,800.00 | General |
| Category: RADIOPHARMACEUTICAL | ||||||
| 01/26/2024 | Janssen Biotech, Inc. | ERLEADA (Drug) | Food and Beverage | In-kind items and services | $42.26 | General |
| Category: Oncology | ||||||
| 12/12/2023 | Progenics Pharmaceuticals, Inc. | PYLARIFY (Drug) | Travel and Lodging | In-kind items and services | $312.52 | General |
| Category: RADIOPHARMACEUTICAL | ||||||
| 12/12/2023 | Progenics Pharmaceuticals, Inc. | PYLARIFY (Drug) | Food and Beverage | In-kind items and services | $154.52 | General |
| Category: RADIOPHARMACEUTICAL | ||||||
| 12/11/2023 | Progenics Pharmaceuticals, Inc. | PYLARIFY (Drug) | Travel and Lodging | In-kind items and services | $29.28 | General |
| Category: RADIOPHARMACEUTICAL | ||||||
| 12/07/2023 | Progenics Pharmaceuticals, Inc. | PYLARIFY (Drug) | Consulting Fee | Cash or cash equivalent | $600.00 | General |
| Category: RADIOPHARMACEUTICAL | ||||||
| 12/04/2023 | Janssen Biotech, Inc. | — | Consulting Fee | Cash or cash equivalent | $1,635.00 | General |
| 12/01/2023 | UroGen Pharma, Inc. | — | Honoraria | Cash or cash equivalent | $3,600.00 | General |
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 15 | 608 | 705 | $881,397 | $106,157 |
| 2022 | 14 | 675 | 796 | $824,757 | $103,067 |
| 2021 | 15 | 720 | 859 | $735,654 | $93,888 |
| 2020 | 16 | 728 | 864 | $779,792 | $98,929 |
Total Patients
2,731
Total Services
3,224
Medicare Billing
$402,041
Procedure Codes
60
All Medicare Procedures & Services
60 procedure records from CMS Medicare Utilization — Page 1 of 3
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 55866 | Surgical removal of prostate and surrounding lymph nodes using an endoscope | Facility | 2023 | 25 | 26 | $175,595 | $19,450 | 11.1% |
| 50820 | Connection of ureter to small bowel with creation of opening from ureter to skin | Facility | 2023 | 14 | 14 | $132,108 | $19,215 | 14.5% |
| 51999 | Other procedure on bladder using an endoscope | Facility | 2023 | 14 | 14 | $114,724 | $12,594 | 11.0% |
| 52000 | Diagnostic exam of bladder and urethra using an endoscope | Facility | 2023 | 162 | 236 | $167,596 | $12,349 | 7.4% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2023 | 114 | 121 | $38,478 | $7,870 | 20.5% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Facility | 2023 | 69 | 69 | $33,948 | $6,000 | 17.7% |
| 52235 | Destruction and/or removal of growth of bladder and urethra using an endoscope, 2.0-5.0 cm | Facility | 2023 | 22 | 27 | $27,054 | $5,663 | 20.9% |
| 38571 | Removal of lymph nodes of both sides of pelvis using an endoscope | Facility | 2023 | 19 | 19 | $63,140 | $4,985 | 7.9% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2023 | 39 | 44 | $18,876 | $4,334 | 23.0% |
| 52240 | Destruction and/or removal of large growth of bladder using an endoscope | Facility | 2023 | 12 | 13 | $22,862 | $3,773 | 16.5% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Facility | 2023 | 18 | 18 | $11,124 | $2,397 | 21.5% |
| 49905 | Repair of abdomen using abdominal lining graft | Facility | 2023 | 13 | 13 | $27,911 | $2,320 | 8.3% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Facility | 2023 | 45 | 47 | $9,964 | $2,051 | 20.6% |
| 52204 | Biopsy of bladder using an endoscope | Facility | 2023 | 20 | 22 | $31,065 | $1,971 | 6.3% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Facility | 2023 | 22 | 22 | $6,952 | $1,186 | 17.1% |
| 55866 | Surgical removal of prostate and surrounding lymph nodes using an endoscope | Facility | 2022 | 34 | 34 | $225,337 | $33,553 | 14.9% |
| 52000 | Diagnostic exam of bladder and urethra using an endoscope | Facility | 2022 | 171 | 258 | $183,180 | $13,178 | 7.2% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2022 | 124 | 141 | $44,838 | $9,892 | 22.1% |
| 51999 | Other procedure on bladder using an endoscope | Facility | 2022 | 11 | 11 | $82,470 | $9,169 | 11.1% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Facility | 2022 | 85 | 85 | $41,820 | $8,065 | 19.3% |
| 38571 | Removal of lymph nodes of both sides of pelvis using an endoscope | Facility | 2022 | 29 | 29 | $95,788 | $8,034 | 8.4% |
| 52235 | Destruction and/or removal of growth of bladder and urethra using an endoscope, 2.0-5.0 cm | Facility | 2022 | 30 | 33 | $33,066 | $6,624 | 20.0% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2022 | 57 | 61 | $26,169 | $6,547 | 25.0% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Facility | 2022 | 43 | 43 | $9,116 | $1,999 | 21.9% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Facility | 2022 | 16 | 16 | $9,888 | $1,977 | 20.0% |
About Dr. Sam Chang, MD
Dr. Sam Chang, MD is a Urology healthcare provider based in Nashville, Tennessee. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 09/22/2006. The National Provider Identifier (NPI) number assigned to this provider is 1922107358.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Sam Chang, MD has received a total of $107,014 in payments from pharmaceutical and medical device companies, with $10,556 received in 2024. These payments were reported across 165 transactions from 33 companies. The most common payment nature is "Consulting Fee" ($83,157).
As a Medicare-enrolled provider, Chang has provided services to 2,731 Medicare beneficiaries, totaling 3,224 services with total Medicare billing of $402,041. Data is available for 4 years (2020–2023), covering 60 distinct procedure/service records.
Ad
Practice Information
- Specialty Urology
- Location Nashville, TN
- Active Since 09/22/2006
- Last Updated 08/20/2025
- Taxonomy Code 208800000X
- Entity Type Individual
- NPI Number 1922107358
Products in Payments
- JELMYTO (Drug) $8,628
- PYLARIFY (Drug) $8,496
- XTANDI (Drug) $7,446
- Cysview (Drug) $7,262
- SUTENT (Drug) $5,349
- Erleada (Drug) $3,770
- ZYTIGA (Drug) $3,350
- ADSTILADRIN (Biological) $2,973
- ERLEADA (Drug) $2,241
- Xtandi (Drug) $1,755
- BLUDIGO (Drug) $1,607
- OPDIVO (Biological) $1,152
- CYSVIEW (Drug) $1,038
- ELIGARD (Drug) $741.52
- Nubeqa (Drug) $516.09
- Cook Medical Urology (Device) $196.99
- Rubraca (Drug) $140.22
- FLEX-XC CMOS URETEROSCOPE 8.5 FR X 675MM (Device) $132.66
- PROVENGE (Drug) $124.44
- JEVTANA (Drug) $121.30
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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