Thomas Tkach, MD
Orthopaedic Surgery · Oklahoma City, OKNPI 1093713331
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $49,863 of the $82,762 with a category attached, or 60.2%. Corentec America Inc accounts for 63.6% of it on its own, with 16 other manufacturers making up the rest. Among orthopaedic surgery clinicians in OK 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 85 payments — averaging $973.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Corentec America Inc$53K
- Omnilife Science, Inc$17K
- Medacta USA, Inc.$5K
- Ortho Development Corporation$3K
- Nextstep Arthropedix, LLC$2K
- Total Joint Orthopedics, Inc.$1K
- plus $1K from 11 others
Across 18 payments — averaging $3406.61 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.
- Medacta USA, Inc.$61K
What the payments were for
- Royalty or licence$17,00021%
- Consulting fees$49,86360%
- Travel & lodging$6,8018%
- Food & beverage$8,86011%
- Gifts$1140%
- Entertainment$1240%
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 |
|---|---|---|
| Corentec America Inc | 35 | $52,627 |
| Omnilife Science, Inc | 2 | $17,148 |
| Medacta USA, Inc. | 2 | $4,856 |
| Ortho Development Corporation | 11 | $3,200 |
| Nextstep Arthropedix, LLC | 5 | $2,189 |
| Total Joint Orthopedics, Inc. | 13 | $1,302 |
| Smith+Nephew | 5 | $306 |
| Davol Inc. | 2 | $208 |
| Microport Orthopedics Inc | 1 | $147 |
| Zimmer Biomet | 1 | $136 |
| Argentum Medical | 1 | $124 |
| Engage Uni, LLC | 1 | $114 |
| Boston Scientific | 1 | $114 |
| Maxx Orthopedics, Inc. | 1 | $110 |
| Avanos Medical | 1 | $98 |
| Innovation Technologies Inc | 2 | $49 |
| Johnson & Johnson | 1 | $32 |
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.
- Corentec$52,268
- GMK SPHERE$4,800
- iNSitu Hip System$2,171
- Balanced Knee System$310
- BKS TriMax$272
- Various Products$148
- MPO Medial Pivot Knee$147
- Ovation Hip Stem$144
- Escalade Acetabular System$144
- Alpine Hip System$144
- CORI$140
- Persona$136
- ARISTA$133
- Balanced Knee Revision System$126
- BKS Revision$117
- Engage Partial Knee System$114
- WaveWriter Alpha Prime 16$114
- Freedom Total Knee System$110
How this compares
$82,762 in reported general payments places this provider in the 95th percentile of 263 orthopaedic 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 |
|---|---|---|
| EliquisApixaban | 16 | $9,216 |
| Diclofenac Sodium | 428 | $6,792 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 355 | $6,054 |
| Diclofenac Sodium-MisoprostolDiclofenac Sodium/Misoprostol | 19 | $4,293 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 66 | $808 |
| Gabapentin | 56 | $701 |
| Doxycycline Monohydrate | 12 | $520 |
| Meloxicam | 70 | $516 |
| Amoxicillin | 312 | $461 |
| Cephalexin | 74 | $366 |
| Celecoxib | 24 | $345 |
| Hydromorphone Hcl | 27 | $208 |
| Ibuprofen | 14 | $193 |
| Tramadol Hcl | 39 | $172 |
| Methylprednisolone | 24 | $160 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Oklahoma City
- Andrew ParkinsonOklahoma City$3.1M
- Bradley ReddickOklahoma City$573K
- Jason EmersonOklahoma City$189K
- Ronald DumiganOklahoma City$169K
- Paul MaitinoOklahoma City$110K
- Brian LevingsOklahoma City$80K
- Christopher WhiteOklahoma City$73K
- Raymond SteinmetzOklahoma City$64K
- Michael JohnsonOklahoma City$63K
- Ryan NelsonOklahoma City$52K
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.