Christopher Mascarenhas, MD
Colon & Rectal Surgery · Nashville, TNNPI 1780777896
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (45.7%), education and food and beverage — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 79.4% of it on its own, with 16 other manufacturers making up the rest. Reporting peaked in 2021 at $3,672 and has fallen 97.1% since, to $106 in 2025.
Across 47 payments — averaging $130.47 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$5K
- Medtronic$930
- Pacira Pharmaceuticals Incorporated$54
- AbbVie$41
- GI Supply, Inc.$36
- La Jolla Pharmaceutical Company$30
- plus $173 from 11 others
What the payments were for
- Travel & lodging$2,80146%
- Food & beverage$81713%
- Education$2,50041%
- Gifts$140%
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 | 14 | $4,867 |
| Medtronic | 16 | $930 |
| Pacira Pharmaceuticals Incorporated | 1 | $54 |
| AbbVie | 2 | $41 |
| GI Supply, Inc. | 1 | $36 |
| La Jolla Pharmaceutical Company | 2 | $30 |
| Innovation Technologies Inc | 1 | $24 |
| Johnson & Johnson | 1 | $18 |
| TELA Bio, Inc. | 1 | $17 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $16 |
| Kowa Pharmaceuticals America, Inc. | 1 | $15 |
| Boston Scientific | 1 | $15 |
| Trevena, Inc. | 1 | $14 |
| Micro-tech Endoscopy USA, Inc. | 1 | $14 |
| Olympus America Inc. | 1 | $14 |
| Aroa Biosurgery Incorporated | 1 | $13 |
| Braintree Laboratories, Inc. | 1 | $12 |
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$4,702
- INTERSTIM$535
How this compares
$6,132 in reported general payments places this provider in the 70th percentile of 31 colon & rectal 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 |
|---|---|---|
| SutabSod Sulf/Pot Chloride/Mag Sulf | 17 | $2,735 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 54 | $270 |
| Neomycin Sulfate | 43 | $244 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 17 | $199 |
| Metronidazole | 61 | $153 |
| Tramadol Hcl | 11 | $16 |
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 |
|---|---|---|
| Braintree Laboratories, Inc.Sutab | $12 | $2,73517 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 70th percentile of 31 colon & rectal surgery providers in Tennessee.
Other colon & rectal surgery in Nashville
- Aimal KhanNashville$35K
- Sree SuryadevaraNashville$24K
- William HarbNashville$8K
- Shannon McChesneyNashville$7K
- Molly FordNashville$6K
- Susan BrileyNashville$2K
- Jason AstonNashville$1K
- David BeckNashville$587
- Alexander HawkinsNashville$334
- Michael HopkinsNashville$268
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.