Payment overview · 2025
General Payments
$2,772.44
95 reported records · 17 companies
Healthcare provider profile · identity verified
C. Michael Knee, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · MIDLAND PARK, NJ · NPI 1225123961
Verified facts
What the public records show
CMS Open Payments records show C. Michael Knee, M.D. received $2,772.44 in general payments during 2025 across 95 reported records.
Amgen Inc. accounted for 26.1% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 20 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Krystexxa, Rinvoq.
ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported RINVOQ as an associated drug or biological on 279238 records involving 34343 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Rinvoq by this doctor in 2024.
Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENBREL as an associated drug or biological on 9330 records involving 2094 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Enbrel by this doctor in 2024.
Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported KRYSTEXXA as an associated drug or biological on 45998 records involving 14548 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Krystexxa by this doctor in 2024.
Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Prolia by this doctor in 2024.
Collegium Pharmaceutical, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BELBUCA as an associated drug or biological on 17475 records involving 4385 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Belbuca by this doctor in 2024.
Janssen Biotech, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported REMICADE as an associated drug or biological on 113 records involving 89 distinct recipient NPIs. Public Medicare Part D data also shows 38 claims for Remicade by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Separate record types
Research & Ownership
Research Payments (direct recipient): not present in the loaded data
Associated Research Funding (for example, named PI): not present in the loaded data
Ownership / Investment: not present in the loaded data
These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.
Who paid this doctor?
Companies in 2025 General Payments
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Amgen Inc. | Unresolved — no canonical attribution shown | $723.92 | 26.1% | 15 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $400.34 | 14.4% | 18 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $325.96 | 11.8% | 9 | 2025 |
| Mallinckrodt Hospital Products Inc. | Unresolved — no canonical attribution shown | $298.67 | 10.8% | 9 | 2025 |
| Alexion Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $240.58 | 8.7% | 2 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $169.99 | 6.1% | 9 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $137.18 | 5.0% | 8 | 2025 |
| ANI Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $107.79 | 3.9% | 6 | 2025 |
| Aurinia Pharma U.S., Inc. | Unresolved — no canonical attribution shown | $105.79 | 3.8% | 4 | 2025 |
| Collegium Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $77.12 | 2.8% | 5 | 2025 |
| UCB, Inc. | Unresolved — no canonical attribution shown | $70.18 | 2.5% | 3 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $33.29 | 1.2% | 2 | 2025 |
| Tonix Medicines, Inc. | Unresolved — no canonical attribution shown | $18.80 | 0.7% | 1 | 2025 |
| Radius Health, Inc. | Unresolved — no canonical attribution shown | $17.56 | 0.6% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $17.27 | 0.6% | 1 | 2025 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | Unresolved — no canonical attribution shown | $14.53 | 0.5% | 1 | 2025 |
| SOBI, INC | Unresolved — no canonical attribution shown | $13.47 | 0.5% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $2,672.64 | 93 |
| Education | $99.80 | 2 |
A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.
Analysis 1 · Payment-linked products
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| EVENITY Normalized: evenity |
Biological | Amgen Inc. | $475.62 | 5 | 2025 |
Source payment records
|
|||||
| TREMFYA Normalized: tremfya |
Drug | Janssen Biotech, Inc. | $325.96 | 9 | 2025 |
Source payment records
|
|||||
| ACTHAR Normalized: acthar |
Biological | Mallinckrodt Hospital Products Inc. | $298.67 | 9 | 2025 |
Source payment records
|
|||||
| SKYRIZI Normalized: skyrizi |
Biological | ABBVIE INC. | $279.81 | 11 | 2025 |
Source payment records
|
|||||
| KRYSTEXXA Normalized: krystexxa |
Biological | Amgen Inc. | $177.31 | 6 | 2025 |
Source payment records
|
|||||
| COSENTYX Normalized: cosentyx |
Drug | Novartis Pharmaceuticals Corporation | $169.99 | 9 | 2025 |
Source payment records
|
|||||
| SIMPONI ARIA Normalized: simponi aria |
Biological | Janssen Biotech, Inc. | $124.98 | 1 | 2025 |
Source payment records
|
|||||
| RINVOQ Normalized: rinvoq |
Biological | ABBVIE INC. | $120.53 | 7 | 2025 |
Source payment records
|
|||||
| LUPKYNIS Normalized: lupkynis |
Drug | Aurinia Pharma U.S., Inc. | $105.79 | 4 | 2025 |
Source payment records
|
|||||
| SOVUNA Normalized: sovuna |
Drug | ANI Pharmaceuticals, Inc. | $86.09 | 5 | 2025 |
Source payment records
|
|||||
| XTAMPZA Normalized: xtampza |
Drug | Collegium Pharmaceutical, Inc. | $77.12 | 5 | 2025 |
Source payment records
|
|||||
| TAVNEOS Normalized: tavneos |
Drug | Amgen Inc. | $70.99 | 4 | 2025 |
Source payment records
|
|||||
| Bimzelx Normalized: bimzelx |
Biological | UCB, Inc. | $70.18 | 3 | 2025 |
Source payment records
|
|||||
| KEVZARA Normalized: kevzara |
Biological | GENZYME CORPORATION | $33.29 | 2 | 2025 |
Source payment records
|
|||||
| PURIFIED CORTROPHIN GEL Normalized: purified cortrophin gel |
Drug | ANI Pharmaceuticals, Inc. | $21.70 | 1 | 2025 |
Source payment records
|
|||||
| TONMYA Normalized: tonmya |
Drug | Tonix Medicines, Inc. | $18.80 | 1 | 2025 |
Source payment records
|
|||||
| Tymlos Normalized: tymlos |
Drug | Radius Health, Inc. | $17.56 | 1 | 2025 |
Source payment records
|
|||||
| XELJANZ Normalized: xeljanz |
Drug | PFIZER INC. | $17.27 | 1 | 2025 |
Source payment records
|
|||||
| RELISTOR Normalized: relistor |
Drug | Salix Pharmaceuticals, a division of Bausch Health US, LLC | $14.53 | 1 | 2025 |
Source payment records
|
|||||
| Kineret Normalized: kineret |
Drug | SOBI, INC | $13.47 | 1 | 2025 |
Source payment records
|
|||||
* Product-associated amounts are non-additive because one payment record may name more than one product.
These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.
Public prescribing for products named in payments
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| KRYSTEXXA krystexxa |
2025 | Krystexxa | 2024 | 12 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| RINVOQ rinvoq |
2025 | Rinvoq | 2024 | 28 Beneficiary count suppressed |
exact normalized | Medicare Part D |
The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.
Analysis 2 · Same-company prescribing overlap
Drugs reported in other payments from the same company that also appear in Medicare Part D
This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.
| Paying company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | RINVOQ open payments reported associated product |
CMS Open Payments — General Payments 279238 supporting records · 34343 recipient NPIs · example record 1201352600 |
Rinvoq · 2024 Exact normalized brand match · 1 Part D row |
28 | suppressed by CMS |
| Amgen Inc. Exact reporting entity; no affiliate inference |
2025 | ENBREL open payments reported associated product |
CMS Open Payments — General Payments 9330 supporting records · 2094 recipient NPIs · example record 1226877474 |
Enbrel · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
| Amgen Inc. Exact reporting entity; no affiliate inference |
2025 | KRYSTEXXA open payments reported associated product |
CMS Open Payments — General Payments 45998 supporting records · 14548 recipient NPIs · example record 1226871690 |
Krystexxa · 2024 Exact normalized brand match · 1 Part D row |
12 | suppressed by CMS |
| Amgen Inc. Exact reporting entity; no affiliate inference |
2025 | PROLIA open payments reported associated product |
CMS Open Payments — General Payments 20867 supporting records · 11744 recipient NPIs · example record 1226874448 |
Prolia · 2024 Exact normalized brand match · 1 Part D row |
16 | 11 |
| Collegium Pharmaceutical, Inc. Exact reporting entity; no affiliate inference |
2025 | BELBUCA open payments reported associated product |
CMS Open Payments — General Payments 17475 supporting records · 4385 recipient NPIs · example record 1224105020 |
Belbuca · 2024 Exact normalized brand match · 1 Part D row |
11 | suppressed by CMS |
| Janssen Biotech, Inc. Exact reporting entity; no affiliate inference |
2025 | REMICADE open payments reported associated product |
CMS Open Payments — General Payments 113 supporting records · 89 recipient NPIs · example record 1174377572 |
Remicade · 2024 Exact normalized brand match · 1 Part D row |
38 | suppressed by CMS |
These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.
Public Medicare Part D data
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Celecoxib | Celecoxib | 208 | 49 |
| Hydroxychloroquine Sulfate | Hydroxychloroquine Sulfate | 196 | 37 |
| Methotrexate | Methotrexate Sodium | 189 | 35 |
| Prednisone | Prednisone | 178 | 35 |
| Meloxicam | Meloxicam | 163 | 35 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 142 | 29 |
| Tramadol Hcl | Tramadol Hcl | 137 | 37 |
| Pregabalin | Pregabalin | 126 | 22 |
| Gabapentin | Gabapentin | 111 | 24 |
| Diclofenac Sodium | Diclofenac Sodium | 96 | 23 |
| Naproxen | Naproxen | 83 | 22 |
| Duloxetine Hcl | Duloxetine Hcl | 63 | 15 |
| Pantoprazole Sodium | Pantoprazole Sodium | 58 | 12 |
| Benlysta | Belimumab | 46 | suppressed |
| Omeprazole | Omeprazole | 45 | 17 |
| Enbrel Sureclick | Etanercept | 44 | suppressed |
| Humira(Cf) Pen | Adalimumab | 39 | suppressed |
| Remicade | Infliximab | 38 | suppressed |
| Mycophenolate Mofetil | Mycophenolate Mofetil | 37 | suppressed |
| Allopurinol | Allopurinol | 36 | suppressed |
| Oxycontin | Oxycodone Hcl | 35 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 34 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 34 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 33 | suppressed |
| Sulindac | Sulindac | 32 | suppressed |
| Potassium Chloride | Potassium Chloride | 29 | suppressed |
| Rinvoq | Upadacitinib | 28 | suppressed |
| Amlodipine Besylate | Amlodipine Besylate | 26 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 26 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 25 | suppressed |
| Methylprednisolone | Methylprednisolone | 24 | 20 |
| Furosemide | Furosemide | 23 | suppressed |
| Diazepam | Diazepam | 22 | suppressed |
| Lisinopril | Lisinopril | 22 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 22 | suppressed |
| Silver Sulfadiazine | Silver Sulfadiazine | 22 | suppressed |
| Lidocaine | Lidocaine | 21 | suppressed |
| Atorvastatin Calcium | Atorvastatin Calcium | 19 | suppressed |
| Levothyroxine Sodium | Levothyroxine Sodium | 19 | suppressed |
| Sulfasalazine | Sulfasalazine | 19 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 19 | suppressed |
| Ibuprofen | Ibuprofen | 18 | suppressed |
| Leflunomide | Leflunomide | 17 | suppressed |
| Losartan Potassium | Losartan Potassium | 16 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 16 | suppressed |
| Prolia | Denosumab | 16 | 11 |
| Humira Pen | Adalimumab | 15 | suppressed |
| Morphine Sulfate | Morphine Sulfate | 15 | suppressed |
| Orencia Clickject | Abatacept | 15 | suppressed |
| Dexlansoprazole Dr | Dexlansoprazole | 14 | suppressed |
| Xeljanz Xr | Tofacitinib Citrate | 14 | suppressed |
| Enbrel | Etanercept | 13 | suppressed |
| Methadone Hcl | Methadone Hcl | 13 | suppressed |
| Nabumetone | Nabumetone | 13 | suppressed |
| Pilocarpine Hcl | Pilocarpine Hcl | 13 | suppressed |
| Taltz Autoinjector | Ixekizumab | 13 | suppressed |
| Colchicine | Colchicine | 12 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 12 | suppressed |
| Folic Acid | Folic Acid | 12 | suppressed |
| Krystexxa | Pegloticase | 12 | suppressed |
| Metformin Hcl | Metformin Hcl | 12 | suppressed |
| Tramadol Hcl-Acetaminophen | Tramadol Hcl/Acetaminophen | 12 | suppressed |
| Belbuca | Buprenorphine Hcl | 11 | suppressed |
| Cimzia (2 Pack) | Certolizumab Pegol | 11 | suppressed |
| Dextroamphetamine-Amphetamine | Dextroamphetamine/Amphetamine | 11 | suppressed |
| Famotidine | Famotidine | 11 | suppressed |
| Hydrochlorothiazide | Hydrochlorothiazide | 11 | suppressed |
| Methotrexate Sodium | Methotrexate Sodium/Pf | 11 | suppressed |
| Methylprednisolone Sodium Succ | Methylprednisolone Sod Succ | 11 | suppressed |
Timeline
Payment and prescribing data by year
Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $2,772.44 · 95 records | Amgen Inc. | ACTHAR, Bimzelx, COSENTYX, EVENITY, KEVZARA, KRYSTEXXA, Kineret, LUPKYNIS, PURIFIED CORTROPHIN GEL, RELISTOR, RINVOQ, SIMPONI ARIA, SKYRIZI, SOVUNA, TAVNEOS, TONMYA, TREMFYA, Tymlos, XELJANZ, XTAMPZA | 6 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Krystexxa play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with ABBVIE INC.?
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| Dataset | Year | Publication | Source |
|---|---|---|---|
| CMS Open Payments — General Payments | 2025 | 2026-06-30 | Original source |
| Medicare Part D Prescribers by Provider and Drug | 2024 | 2026-05-06 | Original source |
| NPPES Data Dissemination V2 | current / reference data | 2026-08-10 | Original source |
Full methodology · Questions & answers · Report a possible error