Charlene Dennemeyer, DPM
Foot & Ankle Surgery · Fort Collins, CONPI 1366006173
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (38.1%), travel and lodging and education — rather than concentrated in one kind of arrangement. 19 manufacturers reported payments, led by Stryker at 33.4% of the total. Reporting peaked in 2024 at $4,370 and has fallen 69.3% since, to $1,343 in 2025.
Across 130 payments — averaging $116.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$5K
- Gemini Mountain Medical, LLC$4K
- Paragon 28, Inc.$1K
- International Life Sciences$1K
- Orthofix Medical, Inc.$1K
- Smith+Nephew$882
- plus $1K from 13 others
What the payments were for
- Travel & lodging$5,53536%
- Food & beverage$5,78538%
- Education$3,84825%
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 |
|---|---|---|
| Stryker | 68 | $5,069 |
| Gemini Mountain Medical, LLC | 3 | $3,956 |
| Paragon 28, Inc. | 8 | $1,479 |
| International Life Sciences | 2 | $1,324 |
| Orthofix Medical, Inc. | 13 | $1,058 |
| Smith+Nephew | 13 | $882 |
| Medical Device Business Services, Inc. | 4 | $382 |
| Arthrex | 4 | $278 |
| Johnson & Johnson | 4 | $213 |
| Musculoskeletal Transplant Foundation Inc. | 1 | $195 |
| Organogenesis Inc. | 1 | $118 |
| Fusion Orthopedics USA, LLC | 2 | $62 |
| Osteomed LLC | 1 | $42 |
| Heron Therapeutics, Inc. | 1 | $25 |
| Urgo Medical North America, LLC | 1 | $19 |
| AbbVie | 1 | $19 |
| In2bones USA, LLC | 1 | $18 |
| Integra Lifesciences Corporation | 1 | $16 |
| Curonix LLC | 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.
- PROstep$1,455
- Product Portfolio$1,277
- PROPHECY$1,138
- SALVATION$965
- ORTHOLOC 2 LAPIFUSE$965
- FLEXBAND$929
- TrueLok$679
- INBONE$678
- VARIAX$316
- INFINITY$302
- Stravix$216
- GRAFIX PL$210
- PROSTEP MICA$137
- Additive Orthopedics$120
- PuraPly$118
- ALLOWRAP$111
- Oasis$106
- Bioinductive Implant with Arthroscopic Delivery System - Medium$105
- Allevyn Life$104
- PICO7$104
How this compares
$15,169 in reported general payments places this provider in the 80th percentile of 181 foot & ankle surgery providers in Colorado.
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 |
|---|---|---|
| Ondansetron OdtOndansetron | 20 | $358 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 16 | $199 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 11 | $157 |
| Methylprednisolone | 16 | $115 |
| Doxycycline Hyclate | 17 | $103 |
| Cephalexin | 21 | $67 |
| Meloxicam | 20 | $54 |
| Gabapentin | 11 | $43 |
| Terbinafine Hcl | 11 | $43 |
Paid to pharmacies, not to this prescriber.
Other foot & ankle surgery in Fort Collins
- Michael HoughtonFort Collins$2M
- Jeffrey LehrmanFort Collins$628K
- Joseph LynottFort Collins$29K
- Stephen WilkinsonFort Collins$9K
- Joshua MetzlEnglewood$1.8M
- Brad DresherColorado Springs$1.3M
- Thomas ClantonVail$1.1M
- Brett SachsWheat Ridge$806K
- Kevin NagamaniDenver$288K
- Keith JacobsonDenver$241K
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.