Daniel Harwell, MD
Neurological Surgery · Tulsa, OKNPI 1679890701
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (57.2%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 34 manufacturers reported payments, led by Zsfab, Inc. at 27.8% of the total. 2025 is the largest year on record at $24,567, 2.4 times the $10,231 reported in 2019.
Across 191 payments — averaging $332.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zsfab, Inc.$18K
- Omnia Medical, LLC$9K
- The Institute Of Musculoskeletal Science And Education$8K
- Alphatec Spine, Inc$8K
- Cerapedics Inc.$5K
- Elevation Spine, Inc.$2K
- plus $14K from 28 others
What the payments were for
- Royalty or licence$1,8263%
- Consulting fees$36,30057%
- Travel & lodging$14,87123%
- Food & beverage$8,62314%
- Entertainment$3331%
- Other$1,5002%
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 |
|---|---|---|
| Zsfab, Inc. | 6 | $17,620 |
| Omnia Medical, LLC | 1 | $8,500 |
| The Institute Of Musculoskeletal Science And Education | 20 | $8,071 |
| Alphatec Spine, Inc | 22 | $7,702 |
| Cerapedics Inc. | 3 | $5,086 |
| Elevation Spine, Inc. | 3 | $2,109 |
| Medtronic(2 entities) | 28 | $1,948 |
| Arthrex | 12 | $1,766 |
| Si-bone, Inc. | 26 | $1,731 |
| Zimvie Inc. | 4 | $1,615 |
| Pylant Medical | 9 | $1,584 |
| Camber Spine Technologies LLC | 5 | $1,414 |
| VGI Medical, LLC | 6 | $1,265 |
| Corelink, LLC | 8 | $1,058 |
| Globus Medical(2 entities) | 13 | $722 |
| Kuros Biosciences USA, Inc | 1 | $179 |
| Spineology Inc. | 1 | $140 |
| Medinc Of Texas | 1 | $114 |
| 7d Surgical ULC | 1 | $111 |
| Carbofix Spine Inc | 1 | $108 |
| Boston Scientific | 2 | $87 |
| Orthofix Medical, Inc. | 1 | $78 |
| AstraZeneca | 3 | $72 |
| Pfizer | 3 | $70 |
| Highridge Medical LLC | 2 | $70 |
| Providence Medical Technology, Inc. | 1 | $53 |
| Zavation Medical Products, LLC | 1 | $43 |
| Integra Lifesciences Corporation | 1 | $30 |
| Spinal Simplicity, LLC | 1 | $29 |
| Radius Health, Inc. | 1 | $18 |
| Nevro Corp. | 1 | $17 |
| Arteriocyte Medical Systems, Inc. | 1 | $15 |
| P Bar Medical LLC | 1 | $14 |
| Johnson & Johnson | 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.
- Other - Miscellaneous$6,125
- I-FACTOR PEPTIDE ENHANCED BONE GRAFT$5,086
- Biomet SpinalPak Non-invasive Spine Fusion Stimulator System$1,500
- Enza 2.0$1,000
- O-ARM-ST$926
- Cerloc, VerteLP, VerteLoc, SiJoin$910
- Orthros Quarter Turn$776
- Spira$630
- iFuse Implant$544
- SiJoin$253
- Excelsius - GPS$239
- Pulse$209
- MazorX - Renaissance$181
- MagnetOs$179
- OPTIMESH EXPANDABLE INTERBODY FUSION SYSTEM$140
- INCEPTIV$136
- 7D Surgical System$111
- INTELLIS ADAPTIVESTIM$111
How this compares
$63,453 in reported general payments places this provider in the 85th percentile of 80 neurological surgery providers in Oklahoma.
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 | 114 | $2,256 |
| Naloxone Hcl | 28 | $1,643 |
| Cyclobenzaprine Hcl | 75 | $1,349 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 29 | $1,191 |
| Oxycodone Hcl | 27 | $528 |
| Methylprednisolone | 40 | $370 |
| Gabapentin | 20 | $285 |
| Tizanidine Hcl | 11 | $145 |
| Hydromorphone Hcl | 11 | $81 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Tulsa
- Clinton BairdTulsa$621K
- Michael ThambuswamyTulsa$92K
- Mohammad Yashar KalaniTulsa$23K
- Kevin KlosTulsa$21K
- Tyler AuschwitzTulsa$17K
- Brian HoodTulsa$13K
- Shihao ZhangTulsa$8K
- Donald SchleicherTulsa$6K
- John MaroukTulsa$4K
- Scott DullTulsa$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.