Christopher Happ, DO
Orthopaedic Surgery of the Spine · Weatherford, TXNPI 1154561702
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $88,863 of the $104,749 with a category attached, or 84.8%. Nvision Biomedical Technologies, Inc. accounts for 89.6% of it on its own, with 20 other manufacturers making up the rest. Reporting peaked in 2023 at $30,906 and has fallen 98.4% since, to $508 in 2025.
Across 90 payments — averaging $1163.88 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Nvision Biomedical Technologies, Inc.$94K
- Kyocera Medical Technologies, Inc.$4K
- Nanohive Medical LLC$3K
- Centinel Spine, LLC$1K
- Nevro Corp.$866
- Camber Spine Technologies LLC$613
- plus $1K from 15 others
What the payments were for
- Royalty or licence$88,86385%
- Consulting fees$11,10411%
- Travel & lodging$1,5501%
- Food & beverage$3,2333%
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 |
|---|---|---|
| Nvision Biomedical Technologies, Inc. | 11 | $93,890 |
| Kyocera Medical Technologies, Inc. | 6 | $3,578 |
| Nanohive Medical LLC | 3 | $3,379 |
| Centinel Spine, LLC | 8 | $1,128 |
| Nevro Corp. | 19 | $866 |
| Camber Spine Technologies LLC | 3 | $613 |
| Globus Medical(2 entities) | 9 | $397 |
| Providence Medical Technology, Inc. | 3 | $172 |
| Osseus Fusion Systems, LLC | 1 | $150 |
| Intrinsic Therapeutics | 10 | $147 |
| Medtronic | 4 | $110 |
| Spineology Inc. | 2 | $63 |
| Boston Scientific | 1 | $41 |
| Baxter Healthcare | 1 | $35 |
| Johnson & Johnson | 1 | $34 |
| Stryker | 1 | $32 |
| Theragen, Inc. | 2 | $32 |
| Amgen | 2 | $31 |
| Pacira Pharmaceuticals Incorporated | 1 | $19 |
| Argentum Medical | 1 | $18 |
| Bioventus LLC | 1 | $15 |
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.
- Focus$31,495
- Foot and Ankle$30,514
- Spine products$27,365
- PRODISC L$615
- MIS Pedicle$516
- PRODISC C$215
- PRODISC C SK$183
- Senza Spinal Cord Stimulation System$119
How this compares
$104,749 in reported general payments places this provider in the 75th percentile of 207 orthopaedic surgery of the spine providers in Texas.
See all orthopaedic surgery of the spine providers in Texas →
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 |
|---|---|---|
| Celecoxib | 340 | $11,544 |
| Tizanidine Hcl | 465 | $6,667 |
| Gabapentin | 237 | $3,028 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 71 | $2,082 |
| Etodolac | 67 | $1,671 |
| Methocarbamol | 102 | $1,464 |
| Pregabalin | 68 | $1,018 |
| Cyclobenzaprine Hcl | 37 | $867 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 16 | $508 |
| Cephalexin | 48 | $205 |
| Prednisone | 85 | $195 |
| Tramadol Hcl | 23 | $139 |
| Meloxicam | 25 | $83 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery of the spine in Weatherford
- Randall DryerAustin$2.9M
- Craig KuhnsAustin$2.4M
- David WimberleyHouston$2.2M
- Jeffrey PhelpsNorth Richland Hills$1.9M
- Eric WieserArlington$1.5M
- Andrew ClavennaDallas$1.3M
- Ivan ChengKyle$1.2M
- Stephen TolhurstFlower Mound$1.1M
- Michael ObrienPlano$1M
- Mohammad EtminanRichmond$1M
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.