Chandrasekhar Padmanabhan, MD
Surgical Oncology · Nashville, TNNPI 1699066068
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $19,250 of the $29,238 with a category attached, or 65.8%. Intera Oncology, Inc accounts for 67.6% of it on its own, with 3 other manufacturers making up the rest. 2025 is the largest year on record at $23,478, more than ten times the $101 reported in 2022. Among surgical oncology 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 39 payments — averaging $749.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intera Oncology, Inc$20K
- Boston Scientific$8K
- Intuitive Surgical$1K
- Johnson & Johnson$70
What the payments were for
- Consulting fees$19,25066%
- Speaking & faculty fees$6,46922%
- Travel & lodging$2,1467%
- Food & beverage$1,3655%
- Gifts$90%
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 |
|---|---|---|
| Intera Oncology, Inc | 18 | $19,762 |
| Boston Scientific | 10 | $7,993 |
| Intuitive Surgical | 10 | $1,413 |
| Johnson & Johnson | 1 | $70 |
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
$29,238 in reported general payments places this provider in the 95th percentile of 53 surgical oncology 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 |
|---|---|---|
| CreonLipase/Protease/Amylase | 38 | $145,094 |
| Pantoprazole Sodium | 13 | $73 |
Paid to pharmacies, not to this prescriber.
Other surgical oncology in Nashville
- Pat WhitworthNashville$62K
- Mariana ChavezNashville$14K
- Marcus TanNashville$8K
- Kamran IdreesNashville$6K
- Colleen KiernanNashville$2K
- Deepa MaggeNashville$2K
- Ingrid MeszoelyNashville$2K
- Kristina ShafferNashville$1K
- Denise GarciaNashville$1K
- Tiffany NevillNashville$1K
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.