Marissa Mencio, MD
Surgery · Hermitage, TNNPI 1609295534
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $739 of the $1,145 with a category attached, or 64.5%. Intuitive Surgical accounts for 83.7% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $1,010 and has fallen 89.6% since, to $105 in 2025. That places this record below the midpoint for surgery clinicians in TN, where the typical reported total is $1,847.
Across 22 payments — averaging $52.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$958
- Novartis$41
- CSL Behring$35
- Genentech USA, Inc.$24
- Alk-abello, Inc$20
- Baxter Healthcare$19
- plus $47 from 3 others
What the payments were for
- Travel & lodging$73965%
- Food & beverage$40635%
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 | 12 | $958 |
| Novartis | 2 | $41 |
| CSL Behring | 2 | $35 |
| Genentech USA, Inc. | 1 | $24 |
| Alk-abello, Inc | 1 | $20 |
| Baxter Healthcare | 1 | $19 |
| Corcept Therapeutics | 1 | $17 |
| AbbVie | 1 | $17 |
| Hologic Sales And Service, LLC | 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.
How this compares
$1,145 in reported general payments places this provider in the 40th 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 |
|---|---|---|
| Ondansetron OdtOndansetron | 19 | $74 |
| Oxycodone Hcl | 18 | $30 |
| Levothyroxine Sodium | 11 | $26 |
Paid to pharmacies, not to this prescriber.
Other surgery in Hermitage
- Craig TernovitsHermitage$17K
- Heath BroussardJackson$688K
- Eric WallaceCookeville$529K
- John RobertsonJohnson City$432K
- Jaime Ponce-PortugalChattanooga$412K
- Evelio RodriguezNashville$362K
- Mathew NinanNashville$298K
- Joseph BroucekNashville$262K
- Linda HanGermantown$252K
- Myron StokesCordova$240K
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.