Isaac Howley, MD
Trauma Surgery · Memphis, TNNPI 1750605523
Payments from drug & device makers
What this record shows
Zimmer Biomet accounts for 87.4% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2020 at $1,175 and has fallen 98.6% since, to $16 in 2024.
Across 21 payments — averaging $85.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zimmer Biomet$2K
- Kerecis Limited$95
- Baxter Healthcare$33
- Mallinckrodt Hospital Products Inc.$22
- Integra Lifesciences Corporation$21
- Tetraphase Pharmaceuticals, Inc.$20
- plus $35 from 2 others
Across 5 payments — averaging $2436.28 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.
- Merck$12K
What the payments were for
- Travel & lodging$99956%
- Food & beverage$79544%
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 |
|---|---|---|
| Zimmer Biomet | 13 | $1,568 |
| Kerecis Limited | 2 | $95 |
| Baxter Healthcare | 1 | $33 |
| Mallinckrodt Hospital Products Inc. | 1 | $22 |
| Integra Lifesciences Corporation | 1 | $21 |
| Tetraphase Pharmaceuticals, Inc. | 1 | $20 |
| KCI USA, Inc. | 1 | $20 |
| Smith+Nephew | 1 | $16 |
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.
- RibFix Blu$1,092
- AdvantageRib$146
How this compares
$1,794 in reported general payments places this provider in the 60th percentile of 38 trauma 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.
Other trauma surgery in Memphis
- Travis WebbMemphis$2K
- Gayle MinardMemphis$174
- Stepheny BerryMemphis$26
- Frances PritchardMemphis$16
- Bryan CottonNashville$306K
- Oliver GunterNashville$46K
- Lemuel DentNashville$11K
- Michael SmithNashville$9K
- Stephen GadomskiNashville$7K
- Steven BrooksNashville$5K
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.