Chandar Singaram, MD
Gastroenterology · Sioux Falls, SDNPI 1235183807
Payments from drug & device makers
Across 484 payments — averaging $737.20 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eli Lilly$167K
- Takeda Pharmaceuticals U.S.A., Inc.$54K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$39K
- QOL Medical, LLC$34K
- E.r. Squibb & Sons, L.L.C.$21K
- AbbVie$16K
- plus $26K from 33 others
Across 7 payments — averaging $626.42 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.
- Eli Lilly$4K
What the payments were for
- Consulting fees$10,5168%
- Speaking & faculty fees$91,12473%
- Travel & lodging$10,4098%
- Food & beverage$12,44010%
- Education$230%
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.
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
$356,804 in reported general payments places this provider in the 95th percentile of 41 gastroenterology providers in South Dakota.
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 |
|---|---|---|
| SucraidSacrosidase | 32 | $449,141 |
| XifaxanRifaximin | 47 | $171,429 |
| ZenpepLipase/Protease/Amylase | 20 | $157,048 |
| Dupixent PenDupilumab | 16 | $129,575 |
| PertzyeLipase/Protease/Amylase | 23 | $86,077 |
| Humira(Cf) PenAdalimumab | 12 | $83,496 |
| CreonLipase/Protease/Amylase | 24 | $80,751 |
| LinzessLinaclotide | 45 | $45,119 |
| ViberziEluxadoline | 33 | $36,257 |
| TrulancePlecanatide | 27 | $15,246 |
| Mesalamine | 14 | $8,078 |
| Mesalamine ErMesalamine | 22 | $7,750 |
| EliquisApixaban | 11 | $6,382 |
| MotegrityPrucalopride Succinate | 12 | $6,119 |
| Dexlansoprazole DrDexlansoprazole | 15 | $3,798 |
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 |
|---|---|---|
| QOL Medical, LLCSucraid | $33,559 | $449,14132 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan, Trulance | $39,174 | $186,67574 claims |
| AbbVieCreon, Linzess, Viberzi | $15,676 | $162,128102 claims |
| Aimmune Therapeutics, Inc.Zenpep | $403 | $157,04820 claims |
| Digestive Care, Inc.Pertzye | $85 | $86,07723 claims |
| PfizerEliquis | $49 | $6,38211 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Motegrity | $53,913 | $6,11912 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 95th percentile of 41 gastroenterology providers in South Dakota.
Other gastroenterology in Sioux Falls
- Erik NessSioux Falls$50K
- Cristina Hill JensenSioux Falls$49K
- Mouhanna Abu GhanimehSioux Falls$34K
- Muhammad FaisalSioux Falls$30K
- Jeffrey MurraySioux Falls$4K
- Lee AustinSioux Falls$3K
- Backer AbduSioux Falls$3K
- Muslim AtiqSioux Falls$3K
- Ahmed KurdiSioux Falls$2K
- Jorge GilbertSioux Falls$2K
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.