Sankeerth Challagundla
Pain Medicine · Columbia, SCNPI 1861847766
Payments from drug & device makers
What this record shows
This record is dominated by grants: $10,162 of the $14,943 with a category attached, or 68.0%. Medtronic accounts for 83.8% of it on its own, with 17 other manufacturers making up the rest. Reporting peaked in 2021 at $10,639 and has fallen 99.3% since, to $79 in 2025. Among pain medicine clinicians in SC with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 56 payments — averaging $266.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$13K
- Abbott$901
- Painteq LLC$200
- Spinal Simplicity, LLC$198
- SPR Therapeutics, Inc$145
- Amgen$144
- plus $836 from 12 others
What the payments were for
- Grants$10,16268%
- Travel & lodging$1,49110%
- Food & beverage$3,25922%
- Education$320%
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 | 24 | $12,519 |
| Abbott | 7 | $901 |
| Painteq LLC | 1 | $200 |
| Spinal Simplicity, LLC | 1 | $198 |
| SPR Therapeutics, Inc | 1 | $145 |
| Amgen | 3 | $144 |
| Saluda Medical Americas, Inc. | 2 | $126 |
| Nevro Corp. | 2 | $125 |
| Biohaven Pharmaceuticals, Inc. | 1 | $112 |
| Boston Scientific | 2 | $106 |
| Stimwave Technologies Incorporated | 1 | $68 |
| AbbVie | 4 | $68 |
| GRT US Holding, Inc. | 1 | $58 |
| Nalu Medical, Inc. | 2 | $52 |
| Eisai Inc. | 1 | $48 |
| Teva Pharmaceuticals USA, Inc. | 1 | $46 |
| Scilex Pharmaceuticals Inc. | 1 | $14 |
| Fidia Pharma USA 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.
- SYNCHROMED$10,000
- VANTA ADAPTIVESTIM$1,301
- INTELLIS ADAPTIVESTIM$459
- PROCLAIM$444
- Axium$373
- PAINTEQ$200
- HA MINUTEMAN G3-R$198
- SPRINT PNS System$145
- Accurian$132
- NURTEC ODT$112
- AIMOVIG$106
How this compares
$14,943 in reported general payments places this provider in the 90th percentile of 92 pain medicine providers in South 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 |
|---|---|---|
| UbrelvyUbrogepant | 55 | $58,536 |
| Nurtec OdtRimegepant Sulfate | 31 | $40,075 |
| QuliptaAtogepant | 14 | $15,305 |
| Aimovig AutoinjectorErenumab-Aooe | 15 | $11,127 |
| Gabapentin | 222 | $3,195 |
| Pregabalin | 45 | $3,188 |
| Sumatriptan Succinate | 29 | $2,140 |
| Carbamazepine ErCarbamazepine | 14 | $1,730 |
| Tizanidine Hcl | 199 | $1,204 |
| Duloxetine Hcl | 54 | $884 |
| Oxcarbazepine | 22 | $781 |
| Lamotrigine | 13 | $720 |
| RizatriptanRizatriptan Benzoate | 38 | $562 |
| Venlafaxine Hcl ErVenlafaxine Hcl | 42 | $526 |
| Meloxicam | 204 | $479 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieUbrelvy, Qulipta | $68 | $73,84069 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 90th percentile of 92 pain medicine providers in South Carolina.
Other pain medicine in Columbia
- Neeraj SriramColumbia$9K
- Usama GabrColumbia$8K
- Phillip SmithGreenville$303K
- Richard KlineConway$104K
- Channing WilloughbyMurrells Inlet$82K
- Michael WarrickSumter$50K
- Daniel AtkinsonGreenville$36K
- Michael WardenFlorence$20K
- Andrew MendelsonCharleston$19K
- Kevin WalkerGreenville$14K
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.