Mathew Ninan, MD
Surgery · Nashville, TNNPI 1710061817
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (36.8%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. 20 manufacturers reported payments, led by Intuitive Surgical at 57.7% of the total. Reporting peaked in 2024 at $83,912 and has fallen 61.1% since, to $32,682 in 2025. Among surgery clinicians in TN with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 387 payments — averaging $769.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$172K
- Medical Device Business Services, Inc.$70K
- Johnson & Johnson$43K
- Boston Scientific$6K
- Ethicon Endo-surgery Inc.$2K
- AstraZeneca$2K
- plus $1K from 14 others
What the payments were for
- Consulting fees$109,10237%
- Speaking & faculty fees$27,0009%
- Travel & lodging$36,76012%
- Food & beverage$15,3905%
- Education$109,50037%
- Gifts$1510%
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 | 252 | $171,890 |
| Medical Device Business Services, Inc. | 59 | $70,463 |
| Johnson & Johnson(3 entities) | 27 | $43,459 |
| Boston Scientific | 15 | $6,374 |
| Ethicon Endo-surgery Inc. | 2 | $2,475 |
| AstraZeneca | 6 | $1,842 |
| GE HealthCare | 3 | $333 |
| Veran Medical Technologies, Inc. | 4 | $188 |
| Actelion Pharmaceuticals US, Inc. | 1 | $125 |
| Xoran Technologies LLC | 2 | $121 |
| Conmed Corporation | 4 | $120 |
| Amgen | 1 | $106 |
| Pinnacle Biologics, Inc | 2 | $96 |
| Fujifilm Healthcare Americas Corporation | 1 | $95 |
| Coastal Medical Technologies LLC | 2 | $58 |
| Siemens Medical Solutions USA, Inc. | 1 | $54 |
| KARL Storz Endoscopy-america | 2 | $42 |
| Bsn Medical Inc | 1 | $25 |
| Acell, Inc. | 1 | $25 |
| Endogastric Solutions, Inc | 1 | $13 |
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$152,903
- Echelon Flex$108,205
- ECHELON ENDOPATH$104,971
- DA VINCI SP$11,750
- GENERAL PULMONARY$6,182
- DAVINCI XI$3,250
- TAGRISSO$1,520
- Monarch Platform$344
- IMFINZI$256
- MONARCH$247
- Echelon Circular$200
- Spin$125
- UPTRAVI$125
- ECHELON FLEX Stapler$124
- MiniCAT$109
- Repatha$106
How this compares
$297,903 in reported general payments places this provider in the 95th percentile of 516 surgery providers in Tennessee.
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 |
|---|---|---|
| Azithromycin | 42 | $222 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 24 | $124 |
| Methylprednisolone | 15 | $119 |
Paid to pharmacies, not to this prescriber.
Other surgery in Nashville
- Evelio RodriguezNashville$362K
- Joseph BroucekNashville$262K
- Ashok BabuNashville$126K
- Meredith DukeNashville$77K
- Zachary CallahanNashville$65K
- Joseph DelozierNashville$44K
- Laura LawsonNashville$36K
- Richard PierceNashville$23K
- David DyerNashville$23K
- Roshni VenugopalNashville$21K
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.