Andrew Tang, MD
Surgery · Los Angeles, CANPI 1962561605
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,973 of the $2,280 with a category attached, or 86.5%. It is spread thinly across 19 manufacturers, the largest accounting for just 23.3% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $1,175 and has fallen 77.8% since, to $260 in 2025. That places this record below the midpoint for surgery clinicians in CA, where the typical reported total is $1,806.
Across 39 payments — averaging $58.47 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Covidien LP$532
- Intuitive Surgical$433
- Teleflex LLC$379
- Kls-martin L.p.$216
- Johnson & Johnson$125
- Boston Scientific$115
- plus $481 from 13 others
Across 1 payment — averaging $23,474 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- KCI USA, Inc.$23K
What the payments were for
- Travel & lodging$30713%
- Food & beverage$1,97387%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Covidien LP | 7 | $532 |
| Intuitive Surgical | 5 | $433 |
| Teleflex LLC | 5 | $379 |
| Kls-martin L.p. | 4 | $216 |
| Johnson & Johnson | 1 | $125 |
| Boston Scientific | 1 | $115 |
| Osiris Therapeutics Inc. | 1 | $106 |
| Averitas Pharma Inc. | 1 | $94 |
| Polarityte, Inc. | 2 | $49 |
| Smith+Nephew | 2 | $48 |
| Musculoskeletal Transplant Foundation Inc. | 1 | $37 |
| Integra Lifesciences Corporation | 2 | $33 |
| Atricure, Inc. | 1 | $20 |
| Medtronic | 1 | $20 |
| Cook Medical LLC | 1 | $19 |
| Amgen | 1 | $19 |
| Cardinal Health 200 LLC | 1 | $19 |
| Davol Inc. | 1 | $13 |
| Avita Medical Americas, LLC | 1 | $6 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$2,280 in reported general payments places this provider in the 50th percentile of 2,363 surgery providers in California.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other surgery in Los Angeles
- John LiphamLos Angeles$942K
- Caitlin HoughtonLos Angeles$569K
- Nikolai BildzukewiczLos Angeles$319K
- Namir KatkhoudaLos Angeles$187K
- Jonathan SalutaLos Angeles$150K
- Raul RosenthalLos Angeles$147K
- Timothy ChuterSan Francisco$8.8M
- Santiago HorganSan Diego$2.8M
- Rock LiuHayward$1.6M
- David LouriePasadena$1.4M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.