Christopher Merrell, MD
Physical Medicine & Rehabilitation · N Charleston, SCNPI 1720049182
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $4,710 of the $7,330 with a category attached, or 64.3%. 16 manufacturers reported payments, led by Medtronic at 49.9% of the total. Reporting peaked in 2020 at $2,994 and has fallen 85.6% since, to $430 in 2025. Among physical medicine & rehabilitation clinicians in SC with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 107 payments — averaging $68.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$4K
- Arthrex$2K
- Peerless Surgical Inc.$572
- Boston Scientific$294
- Abbott$232
- Amgen$127
- plus $298 from 10 others
Across 4 payments — averaging $2816.50 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.
- Medtronic$11K
What the payments were for
- Travel & lodging$74310%
- Food & beverage$4,71064%
- Education$1,87826%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Medtronic(2 entities) | 54 | $3,655 |
| Arthrex | 4 | $2,152 |
| Peerless Surgical Inc. | 5 | $572 |
| Boston Scientific | 12 | $294 |
| Abbott | 14 | $232 |
| Amgen(2 entities) | 2 | $127 |
| Nevro Corp. | 4 | $70 |
| Zyla Life Sciences, Inc. | 3 | $41 |
| Forte Bio-pharma LLC | 2 | $33 |
| Relievant Medsystems, Inc. | 1 | $31 |
| SPR Therapeutics, Inc | 1 | $29 |
| Vertex | 1 | $28 |
| Daiichi Sankyo Inc. | 1 | $23 |
| Kowa Pharmaceuticals America, Inc. | 1 | $16 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $14 |
| Assertio Therapeutics, Inc. | 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.
- Accurian$1,024
- INTELLIS$575
- INTELLIS ADAPTIVESTIM$435
- SYNCHROMEDII$218
- GENERAL PAIN MANAGEMENT$117
- Prolia$113
How this compares
$7,330 in reported general payments places this provider in the 90th percentile of 122 physical medicine & rehabilitation providers in South Carolina.
See all physical medicine & rehabilitation providers in South Carolina →
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 |
|---|---|---|
| Xtampza ErOxycodone Myristate | 37 | $20,384 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 400 | $13,260 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 574 | $12,853 |
| OxycontinOxycodone Hcl | 19 | $9,867 |
| MovantikNaloxegol Oxalate | 12 | $4,944 |
| Morphine Sulfate ErMorphine Sulfate | 118 | $3,268 |
| Lidocaine | 21 | $2,949 |
| Gabapentin | 75 | $1,219 |
| Celecoxib | 52 | $1,026 |
| Oxycodone Hcl | 69 | $954 |
| Pregabalin | 73 | $839 |
| Tramadol Hcl | 58 | $433 |
| Tizanidine Hcl | 43 | $432 |
| Diclofenac Sodium | 30 | $402 |
| Trazodone Hcl | 15 | $397 |
Paid to pharmacies, not to this prescriber.
Other physical medicine & rehabilitation in N Charleston
- William LorenzFlorence$66K
- Charles NivensBluffton$25K
- Jonathan ChapekisGreer$17K
- Rebecca HoldrenGreenville$15K
- Nancey TsaiHanahan$13K
- Ashley MaybinConway$10K
- Anthony AlexanderFlorence$10K
- Eleasa HulonGreenville$10K
- Susan CramerBluffton$7K
- Jeffrey FarricielliMount Pleasant$6K
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.