Michael Warrick
Pain Medicine · Sumter, SCNPI 1952472953
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $39,753 of the $49,896 with a category attached, or 79.7%. Medtronic accounts for 97.0% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2019 at $22,625 and has fallen 98.6% since, to $325 in 2025. Among pain medicine clinicians in SC 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 188 payments — averaging $265.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$48K
- Relievant Medsystems, Inc.$885
- Abbott$153
- Vertiflex, Inc.$122
- Curonix LLC$91
- Collegium Pharmaceutical, Inc.$63
- plus $198 from 4 others
Across 1 payment — averaging $4704.00 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$5K
What the payments were for
- Consulting fees$3101%
- Speaking & faculty fees$39,75380%
- Travel & lodging$3,7978%
- Food & beverage$6,03612%
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) | 156 | $48,385 |
| Relievant Medsystems, Inc. | 13 | $885 |
| Abbott | 7 | $153 |
| Vertiflex, Inc. | 4 | $122 |
| Curonix LLC | 1 | $91 |
| Collegium Pharmaceutical, Inc. | 1 | $63 |
| SPR Therapeutics, Inc | 2 | $61 |
| Vertos Medical, Inc. | 2 | $60 |
| GRT US Holding, Inc. | 1 | $58 |
| Si-bone, Inc. | 1 | $20 |
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.
- INTELLIS$13,775
- INTELLIS ADAPTIVESTIM$11,415
- KYPHON EXPRESS II KYPHOPAK TRAY$9,814
- SYNCHROMED$4,338
- RESTORE$2,272
- Intracept$1,235
- TARGETSTIM$1,136
- OSTEOCOOL RF ABLATION$603
- KYPHON Balloon Kyphoplasty$457
- LIORESAL$413
- Accurian$285
How this compares
$49,896 in reported general payments places this provider in the 95th percentile of 92 pain medicine 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 |
|---|---|---|
| Levorphanol Tartrate | 12 | $57,669 |
| Xtampza ErOxycodone Myristate | 25 | $17,209 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 754 | $16,663 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 685 | $14,985 |
| Oxymorphone Hcl ErOxymorphone Hcl | 24 | $11,176 |
| BelbucaBuprenorphine Hcl | 12 | $10,258 |
| OxycontinOxycodone Hcl | 12 | $9,795 |
| Buprenorphine | 23 | $5,497 |
| Oxycodone Hcl | 255 | $4,713 |
| Tramadol Hcl ErTramadol Hcl | 14 | $1,499 |
| Duloxetine Hcl | 48 | $1,132 |
| Tramadol Hcl | 168 | $1,086 |
| Gabapentin | 70 | $901 |
| Morphine Sulfate | 19 | $851 |
| Tizanidine Hcl | 79 | $836 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Collegium Pharmaceutical, Inc.Xtampza Er, Belbuca | $63 | $27,46637 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 92 pain medicine providers in South Carolina.
Other pain medicine in Sumter
- Woodward DixonSumter$927
- Phillip SmithGreenville$303K
- Richard KlineConway$104K
- Channing WilloughbyMurrells Inlet$82K
- Daniel AtkinsonGreenville$36K
- Michael WardenFlorence$20K
- Andrew MendelsonCharleston$19K
- Sankeerth ChallagundlaColumbia$15K
- Kevin WalkerGreenville$14K
- Matthew DaviesMurrells Inlet$12K
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.