Mark Mainous, MD
Surgical Critical Care · Shreveport, LANPI 1427088079
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $95,473 of the $133,184 with a category attached, or 71.7%. Heron Therapeutics, Inc. accounts for 98.8% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2022 at $67,552 and has fallen 71.5% since, to $19,256 in 2025. Among surgical critical care clinicians in LA 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 244 payments — averaging $545.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Heron Therapeutics, Inc.$132K
- Johnson & Johnson$648
- KARL Storz Endoscopy-america$334
- AbbVie$290
- Sanara Medtech Inc.$261
- Davol Inc.$55
- plus $38 from 2 others
What the payments were for
- Consulting fees$10,5638%
- Speaking & faculty fees$95,47372%
- Travel & lodging$22,05117%
- Food & beverage$5,0974%
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 |
|---|---|---|
| Heron Therapeutics, Inc. | 180 | $131,557 |
| Johnson & Johnson(2 entities) | 29 | $648 |
| KARL Storz Endoscopy-america | 21 | $334 |
| AbbVie(2 entities) | 9 | $290 |
| Sanara Medtech Inc. | 1 | $261 |
| Davol Inc. | 2 | $55 |
| Innovation Technologies Inc | 1 | $23 |
| Conmed Corporation | 1 | $14 |
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.
- Zynrelef$129,502
- APONVIE$7,299
- CellerateRx$261
- STRATTICE RECONSTRUCTIVE TISSUE MATRIX BPS$124
- HARMONIC Product Family$106
How this compares
$133,184 in reported general payments places this provider in the 95th percentile of 20 surgical critical care providers in Louisiana.
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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 33 | $163 |
| Minocycline Hcl | 26 | $145 |
| Tramadol Hcl | 39 | $110 |
| Ondansetron Hcl | 14 | $20 |
Paid to pharmacies, not to this prescriber.
Other surgical critical care in Shreveport
- Sanaz LeilabadiShreveport$2K
- Shane RinehartShreveport$1K
- Juan OchoaNew Orleans$25K
- Jeffanne MillienNew Orleans$8K
- Juan DuchesneNew Orleans$7K
- Charles HarrisNew Orleans$6K
- Marquinn DukeHammond$6K
- Patrick McGrewNew Orleans$5K
- Jeremy TimmerAlexandria$2K
- Gonzalo AusquiHammond$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.