Whiyie Sang, MD
Colon & Rectal Surgery · Wilmington, NCNPI 1952756389
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 17 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 9 manufacturers reported payments, led by Medtronic at 31.8% of the total. That places this record below the midpoint for colon & rectal surgery clinicians in NC, where the typical reported total is $3,517.
Across 17 payments — averaging $52.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$283
- Davol Inc.$171
- TELA Bio, Inc.$164
- Intuitive Surgical$115
- Johnson & Johnson$57
- Smith+Nephew$41
- plus $60 from 3 others
What the payments were for
- Food & beverage$892100%
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 |
|---|---|---|
| Medtronic | 4 | $283 |
| Davol Inc. | 3 | $171 |
| TELA Bio, Inc. | 1 | $164 |
| Intuitive Surgical | 2 | $115 |
| Johnson & Johnson | 2 | $57 |
| Smith+Nephew | 2 | $41 |
| Merck | 1 | $23 |
| Cumberland Pharmaceuticals, Inc. | 1 | $23 |
| Solventum Corporation | 1 | $15 |
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
$892 in reported general payments places this provider in the 35th percentile of 27 colon & rectal surgery providers in North Carolina.
See all colon & rectal surgery providers in North Carolina →
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Neomycin Sulfate | 47 | $176 |
| Promethazine Hcl | 15 | $143 |
| Metronidazole | 53 | $98 |
| Oxycodone Hcl | 21 | $78 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Wilmington
- Joseph PayneWilmington$9K
- Gentry CatonWilmington$3K
- Benny ChongConcord$32K
- Coen KlosHendersonville$14K
- Julie ThackerDurham$14K
- William LymanCharlotte$11K
- Stanley FullerWinston Salem$8K
- Bradley DavisCharlotte$7K
- Guillaume ChevrollierCharlotte$7K
- Robert StevensCharlotte$6K
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.