Darwin Ang, MD
Surgical Critical Care · Ocala, FLNPI 1295927671
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (49.8%), education and food and beverage — rather than concentrated in one kind of arrangement. 9 manufacturers reported payments, led by Intuitive Surgical at 55.8% of the total. Reporting peaked in 2019 at $3,148 and has fallen 89.5% since, to $329 in 2025.
Across 18 payments — averaging $234.11 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$2K
- GE HealthCare$1K
- Neuros Medical, Inc.$195
- Davol Inc.$119
- Baxter Healthcare$115
- Abiomed$22
- plus $46 from 3 others
Across 18 payments — averaging $30,377 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.
- Medical Device Business Services, Inc.$547K
What the payments were for
- Travel & lodging$2,09750%
- Food & beverage$77918%
- Education$1,33732%
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 |
|---|---|---|
| Intuitive Surgical | 9 | $2,353 |
| GE HealthCare | 2 | $1,365 |
| Neuros Medical, Inc. | 1 | $195 |
| Davol Inc. | 1 | $119 |
| Baxter Healthcare | 1 | $115 |
| Abiomed | 1 | $22 |
| Boston Scientific | 1 | $18 |
| Shionogi Inc | 1 | $16 |
| Johnson & Johnson | 1 | $12 |
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.
- Da Vinci Surgical System$2,141
- Altius$195
- Phasix Mesh$119
- TISSEEL$115
How this compares
$4,214 in reported general payments places this provider in the 60th percentile of 132 surgical critical care providers in Florida.
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 |
|---|---|---|
| Oxycodone Hcl | 12 | $67 |
Paid to pharmacies, not to this prescriber.
Other surgical critical care in Ocala
- Nir HusDelray Beach$443K
- Alfredo CordovaSarasota$314K
- Joshua CarsonGainesville$52K
- Jose DiazTampa$35K
- Anthony GielowLongwood$29K
- Chadwick SmithOrlando$23K
- Scott ZenoniMelbourne$22K
- Frederick MooreGainesville$20K
- Carl SchulmanMiami$17K
- Chasen CroftGainesville$17K
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.