Terah Isaacson, MD
Colon & Rectal Surgery · Cookeville, TNNPI 1023220316
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $5,500 of the $6,503 with a category attached, or 84.6%. Acelrx Pharmaceuticals, Inc. accounts for 90.8% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2019 at $3,884 and has fallen 94.8% since, to $201 in 2025.
Across 19 payments — averaging $342.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Acelrx Pharmaceuticals, Inc.$6K
- Kerecis Limited$225
- Canon Medical Systems USA, Inc.$201
- Davol Inc.$32
- Covidien LP$25
- Baudax Bio Inc.$24
- plus $91 from 5 others
What the payments were for
- Speaking & faculty fees$5,50085%
- Food & beverage$77212%
- Education$50%
- Gifts$2253%
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 |
|---|---|---|
| Acelrx Pharmaceuticals, Inc. | 9 | $5,905 |
| Kerecis Limited | 1 | $225 |
| Canon Medical Systems USA, Inc. | 1 | $201 |
| Davol Inc. | 1 | $32 |
| Covidien LP | 1 | $25 |
| Baudax Bio Inc. | 1 | $24 |
| Boston Scientific | 1 | $24 |
| Convatec Inc. | 1 | $22 |
| Ferring Pharmaceuticals Inc. | 1 | $17 |
| Coopersurgical, Inc. | 1 | $16 |
| Johnson & Johnson | 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.
How this compares
$6,503 in reported general payments places this provider in the 80th 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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 15 | $92 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Cookeville
- Aimal KhanNashville$35K
- Sree SuryadevaraNashville$24K
- Justin MonroeMemphis$14K
- William HarbNashville$8K
- Shannon McChesneyNashville$7K
- Gregory LowKnoxville$6K
- Molly FordNashville$6K
- Christopher MascarenhasNashville$6K
- Jay YoungKnoxville$5K
- Paul JohnsonMemphis$4K
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.