Chaturani Ranasinghe, MD
Pain Medicine · Naples, FLNPI 1144370693
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 63 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 22 manufacturers, the largest accounting for just 21.0% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $334 and has fallen 74.5% since, to $85 in 2025. That places this record below the midpoint for pain medicine clinicians in FL, where the typical reported total is $2,085.
Across 63 payments — averaging $20.58 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Nevro Corp.$272
- Scilex Pharmaceuticals Inc.$230
- Boston Scientific$159
- Merck$84
- Abbott$74
- Tersera Therapeutics LLC$57
- plus $421 from 16 others
What the payments were for
- Food & beverage$1,296100%
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 |
|---|---|---|
| Nevro Corp. | 12 | $272 |
| Scilex Pharmaceuticals Inc. | 12 | $230 |
| Boston Scientific | 5 | $159 |
| Merck | 4 | $84 |
| Abbott | 4 | $74 |
| Tersera Therapeutics LLC | 2 | $57 |
| AbbVie(2 entities) | 4 | $52 |
| Collegium Pharmaceutical, Inc. | 2 | $48 |
| GRT US Holding, Inc. | 1 | $36 |
| Stimwave Technologies Incorporated | 1 | $34 |
| Daiichi Sankyo Inc. | 1 | $29 |
| Si-bone, Inc. | 1 | $27 |
| Fidia Pharma USA Inc. | 2 | $25 |
| Teva Pharmaceuticals USA, Inc. | 2 | $24 |
| Amgen | 2 | $24 |
| Stratus Medical, LLC | 2 | $23 |
| Novartis | 1 | $22 |
| Stemline Therapeutics Inc. | 1 | $18 |
| Pacira Therapeutics, Inc. | 1 | $18 |
| Averitas Pharma Inc. | 1 | $15 |
| Avanos Medical | 1 | $14 |
| Sentynl Therapeutics, Inc. | 1 | $13 |
How this compares
$1,296 in reported general payments places this provider in the 40th percentile of 596 pain medicine 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-AcetaminophenOxycodone Hcl/Acetaminophen | 107 | $3,048 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 90 | $2,771 |
| Pregabalin | 78 | $2,172 |
| Gabapentin | 239 | $2,168 |
| Desonide | 11 | $1,577 |
| Celecoxib | 61 | $791 |
| Tramadol Hcl ErTramadol Hcl | 17 | $780 |
| Tramadol Hcl | 89 | $440 |
| Oxycodone Hcl | 38 | $322 |
| Tizanidine Hcl | 68 | $298 |
| Duloxetine Hcl | 27 | $193 |
| Diazepam | 30 | $40 |
| Meloxicam | 11 | $20 |
| Prednisone | 11 | $9 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Naples
- Joseph PergolizziNaples$333K
- Jeffrey GudinMiami$356K
- Ramon Cuevas-TrisanRiviera Beach$220K
- Navdeep JassalLakeland$163K
- Mark-Friedrich HurdleJacksonville$140K
- Rodolfo GariTampa$120K
- Stephen PylesOcala$115K
- Orlando FloreteJacksonville$86K
- Michael GreeneMiddleburg$73K
- Nicholas BremerFernandina Beach$66K
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.