Hans Knopp, DO
Pain Medicine · Middlebury, CTNPI 1639506967
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.6% of the total across 564 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 34 manufacturers reported payments, led by Boston Scientific at 24.7% of the total. 2025 is the largest year on record at $2,759, 2.8 times the $977 reported in 2019.
Across 564 payments — averaging $19.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$3K
- AbbVie$1K
- SPR Therapeutics, Inc$1K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$948
- Collegium Pharmaceutical, Inc.$702
- Scilex Pharmaceuticals Inc.$592
- plus $4K from 28 others
What the payments were for
- Travel & lodging$3363%
- Food & beverage$10,49696%
- Education$1431%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 | 88 | $2,715 |
| AbbVie(2 entities) | 59 | $1,255 |
| SPR Therapeutics, Inc | 37 | $1,087 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 74 | $948 |
| Collegium Pharmaceutical, Inc. | 117 | $702 |
| Scilex Pharmaceuticals Inc. | 35 | $592 |
| Azurity Pharmaceuticals, Inc. | 51 | $588 |
| Si-bone, Inc. | 4 | $357 |
| Saluda Medical Americas, Inc. | 8 | $351 |
| Medtronic | 9 | $347 |
| Valinor Pharma, LLC | 16 | $271 |
| Abbott | 8 | $254 |
| Nevro Corp. | 5 | $211 |
| Vertex | 3 | $177 |
| Vertos Medical, Inc. | 2 | $142 |
| Pfizer | 6 | $123 |
| Ipsen Biopharmaceuticals, Inc | 4 | $119 |
| Stratus Medical, LLC | 4 | $117 |
| IBSA Pharma Inc. | 4 | $94 |
| Merz Pharmaceuticals, LLC | 3 | $93 |
| Arbor Pharmaceuticals, Inc. | 5 | $64 |
| Avanos Medical | 1 | $59 |
| GRT US Holding, Inc. | 5 | $43 |
| Nalu Medical, Inc. | 5 | $38 |
| Neurometrix Inc | 1 | $32 |
| Curonix LLC | 1 | $29 |
| Johnson & Johnson | 2 | $28 |
| Globus Medical | 1 | $25 |
| Ultragenyx Pharmaceutical Inc. | 1 | $23 |
| Biohaven Pharmaceutical Holding Company Ltd. | 1 | $23 |
| Redhill Biopharma Inc. | 1 | $22 |
| Averitas Pharma Inc. | 1 | $20 |
| Bioventus LLC | 1 | $13 |
| Biohaven Pharmaceuticals, Inc. | 1 | $13 |
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.
- SPRINT PNS System$508
- GENERAL PAIN MANAGEMENT$462
- SUPERION$162
- Senza$135
- mild Device Kit$128
- BOTOX$125
- JOURNAVX$116
How this compares
$10,975 in reported general payments places this provider in the 85th percentile of 69 pain medicine providers in Connecticut.
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 |
|---|---|---|
| BelbucaBuprenorphine Hcl | 205 | $189,415 |
| HorizantGabapentin Enacarbil | 46 | $56,168 |
| RelistorMethylnaltrexone Bromide | 18 | $41,985 |
| ZtlidoLidocaine | 29 | $26,893 |
| Buprenorphine | 131 | $24,208 |
| Xtampza ErOxycodone Myristate | 28 | $12,955 |
| MovantikNaloxegol Oxalate | 26 | $11,388 |
| OxycontinOxycodone Hcl | 16 | $8,258 |
| Hysingla ErHydrocodone Bitartrate | 16 | $7,938 |
| Lidocaine | 82 | $7,348 |
| Pregabalin | 220 | $4,774 |
| Gabapentin | 269 | $4,747 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 190 | $4,449 |
| Morphine Sulfate ErMorphine Sulfate | 58 | $4,166 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 193 | $4,079 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Collegium Pharmaceutical, Inc.Belbuca, Xtampza Er | $702 | $202,371233 claims |
| Arbor Pharmaceuticals, Inc.Horizant | $64 | $56,16846 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCRelistor | $948 | $41,98518 claims |
| Scilex Pharmaceuticals Inc.Ztlido | $592 | $26,89329 claims |
| Redhill Biopharma Inc.Movantik | $22 | $11,38826 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 85th percentile of 69 pain medicine providers in Connecticut.
Other pain medicine in Middlebury
- Bohdan WarychaMiddlebury$3K
- Bhavesh PatelMiddlebury$2K
- Alexander CarreseMiddlebury$2K
- Sandeep JoharWaterbury$329K
- David GutierrezNew Haven$151K
- Brian GrosbergWest Hartford$99K
- Ofer WellischStamford$18K
- Yili HuangNew Haven$18K
- Jared RosenbergGreenwich$12K
- Sandhya MehlaWest Hartford$12K
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.