Christopher Zimmermann, MD
Surgery · Fort Collins, CONPI 1477949162
Payments from drug & device makers
What this record shows
This record is dominated by grants: $50,000 of the $52,016 with a category attached, or 96.1%. Boston Scientific accounts for 96.5% of it on its own, with 10 other manufacturers making up the rest. Among surgery clinicians in CO 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 30 payments — averaging $1733.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$50K
- Apollo Endosurgery US Inc$495
- W. L. Gore & Associates, Inc.$370
- Enterra Medical, Inc.$285
- Johnson & Johnson$273
- Integra Lifesciences Corporation$143
- plus $269 from 5 others
What the payments were for
- Grants$50,00096%
- Travel & lodging$2741%
- Food & beverage$1,7423%
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 |
|---|---|---|
| Boston Scientific | 6 | $50,181 |
| Apollo Endosurgery US Inc | 6 | $495 |
| W. L. Gore & Associates, Inc. | 5 | $370 |
| Enterra Medical, Inc. | 4 | $285 |
| Johnson & Johnson | 3 | $273 |
| Integra Lifesciences Corporation | 1 | $143 |
| Mentor Worldwide LLC | 1 | $122 |
| Stryker | 1 | $68 |
| Intuitive Surgical | 1 | $42 |
| Medtronic | 1 | $20 |
| Novo Nordisk | 1 | $18 |
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.
- GENERAL - THERAPIES$50,000
- INTEGRA$428
- OverStitch Endoscopic Suturing System$274
- GORE BIO-A Tissue Reinforcement$164
- INTEGRA DERMAL REGENERATION TEMPLATE$143
- PRIMATRIX$143
- Echelon Circular$143
- ECHELON ENDOPATH$143
- Harmonic$143
- MENTOR MemoryGel Resterilizable Gel Sizer$122
- GORE ENFORM Preperitoneal Biomaterial$120
- LINX Reflux Management System$114
- SPYGLASS$102
How this compares
$52,016 in reported general payments places this provider in the 95th percentile of 469 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 |
|---|---|---|
| Omeprazole | 33 | $313 |
| Ondansetron OdtOndansetron | 19 | $169 |
| Oxycodone Hcl | 26 | $23 |
Paid to pharmacies, not to this prescriber.
Other surgery in Fort Collins
- Khoi leFort Collins$273K
- Robert QuaidFort Collins$18K
- Philip WoodworthLone Tree$1.3M
- Reginald BellLone Tree$1M
- Anthony CanfieldDenver$854K
- Jonathan SchoeffLone Tree$522K
- Graham LitchmanLone Tree$308K
- Sandeep VijanWalsenburg$222K
- Kian ModanlouEnglewood$221K
- Turner LisleVail$161K
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.