Payment overview · 2025
General Payments
124 reported records · 13 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology · LOS ANGELES, CA · NPI 1780610105
Verified facts
CMS Open Payments records show Daniel G. Arkfeld, M.D. received $57,148.66 in general payments during 2025 across 124 reported records.
Amgen Inc. accounted for 33.5% 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: Benlysta, Kevzara, Otezla, 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Linzess by this doctor in 2024.
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.
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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 44 claims for Synthroid 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 OTEZLA as an associated drug or biological on 177267 records involving 48600 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Otezla by this doctor in 2024.
GENZYME CORPORATION reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported KEVZARA as an associated drug or biological on 5840 records involving 2002 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Kevzara by this doctor in 2024.
GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BENLYSTA as an associated drug or biological on 19884 records involving 5034 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Benlysta by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
124 reported records · 13 companies
Separate record types
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?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Amgen Inc. | Unresolved — no canonical attribution shown | $19,147.93 | 33.5% | 31 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $12,803.68 | 22.4% | 6 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $10,571.08 | 18.5% | 28 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $7,311.41 | 12.8% | 23 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $3,500.11 | 6.1% | 15 | 2025 |
| KYOWA KIRIN, INC. | Unresolved — no canonical attribution shown | $3,275.28 | 5.7% | 7 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $121.81 | 0.2% | 1 | 2025 |
| UCB, Inc. | Unresolved — no canonical attribution shown | $113.03 | 0.2% | 1 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $110.72 | 0.2% | 4 | 2025 |
| Mallinckrodt Hospital Products Inc. | Unresolved — no canonical attribution shown | $84.30 | 0.1% | 4 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $55.42 | 0.1% | 2 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $29.90 | 0.1% | 1 | 2025 |
| Alexion Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $23.99 | 0.0% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $38,502.00 | 16 |
| Consulting Fee | $11,342.50 | 4 |
| Travel and Lodging | $3,909.11 | 16 |
| Food and Beverage | $3,318.06 | 87 |
| Education | $76.99 | 1 |
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
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| UPLIZNA Normalized: uplizna |
Biological | Amgen Inc. | $15,334.93 | 21 | 2025 |
Source payment records
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| KEVZARA Normalized: kevzara |
Biological | GENZYME CORPORATION | $12,803.68 | 6 | 2025 |
Source payment records
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| BENLYSTA Normalized: benlysta |
Biological | GlaxoSmithKline, LLC. | $10,571.08 | 28 | 2025 |
Source payment records
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| RINVOQ Normalized: rinvoq |
Biological | ABBVIE INC. | $7,279.83 | 22 | 2025 |
Source payment records
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| TAVNEOS Normalized: tavneos |
Drug | Amgen Inc. | $3,689.17 | 4 | 2025 |
Source payment records
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| TREMFYA Normalized: tremfya |
Drug | Janssen Biotech, Inc. | $3,500.11 | 15 | 2025 |
Source payment records
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| CRYSVITA Normalized: crysvita |
Drug | KYOWA KIRIN, INC. | $3,275.28 | 7 | 2025 |
Source payment records
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| SIMPONI ARIA Normalized: simponi aria |
Biological | Janssen Biotech, Inc. | $124.99 | 1 | 2025 |
Source payment records
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| SAPHNELO Normalized: saphnelo |
Biological | AstraZeneca Pharmaceuticals LP | $121.81 | 1 | 2025 |
Source payment records
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| Bimzelx Normalized: bimzelx |
Biological | UCB, Inc. | $113.03 | 1 | 2025 |
Source payment records
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| COSENTYX Normalized: cosentyx |
Drug | Novartis Pharmaceuticals Corporation | $110.72 | 4 | 2025 |
Source payment records
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| ACTHAR Normalized: acthar |
Biological | Mallinckrodt Hospital Products Inc. | $84.30 | 4 | 2025 |
Source payment records
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| ENBREL Normalized: enbrel |
Biological | Amgen Inc. | $63.33 | 3 | 2025 |
Source payment records
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| OTEZLA Normalized: otezla |
Drug | Amgen Inc. | $63.33 | 3 | 2025 |
Source payment records
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| XELJANZ Normalized: xeljanz |
Drug | PFIZER INC. | $55.42 | 2 | 2025 |
Source payment records
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| SKYRIZI Normalized: skyrizi |
Biological | ABBVIE INC. | $52.84 | 2 | 2025 |
Source payment records
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| KRYSTEXXA Normalized: krystexxa |
Biological | Amgen Inc. | $30.59 | 2 | 2025 |
Source payment records
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| EVENITY Normalized: evenity |
Biological | Amgen Inc. | $29.91 | 1 | 2025 |
Source payment records
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| Gazyva Normalized: gazyva |
Biological | Genentech USA, Inc. | $29.90 | 1 | 2025 |
Source payment records
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| STRENSIQ Normalized: strensiq |
Biological | Alexion Pharmaceuticals, Inc. | $23.99 | 1 | 2025 |
Source payment records
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* 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.
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| BENLYSTA benlysta |
2025 | Benlysta | 2024 | 11 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| KEVZARA kevzara |
2025 | Kevzara | 2024 | 13 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| OTEZLA otezla |
2025 | Otezla | 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
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 | LINZESS open payments reported associated product |
CMS Open Payments — General Payments 87954 supporting records · 21815 recipient NPIs · example record 1201352608 |
Linzess · 2024 Exact normalized brand match · 1 Part D row |
11 | suppressed by CMS |
| 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 |
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | SYNTHROID open payments reported associated product |
CMS Open Payments — General Payments 10655 supporting records · 4881 recipient NPIs · example record 1201352636 |
Synthroid · 2024 Exact normalized brand match · 1 Part D row |
44 | 12 |
| Amgen Inc. Exact reporting entity; no affiliate inference |
2025 | OTEZLA open payments reported associated product |
CMS Open Payments — General Payments 177267 supporting records · 48600 recipient NPIs · example record 1226871616 |
Otezla · 2024 Exact normalized brand match · 1 Part D row |
12 | suppressed by CMS |
| GENZYME CORPORATION Exact reporting entity; no affiliate inference |
2025 | KEVZARA open payments reported associated product |
CMS Open Payments — General Payments 5840 supporting records · 2002 recipient NPIs · example record 1233195032 |
Kevzara · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
| GlaxoSmithKline, LLC. Exact reporting entity; no affiliate inference |
2025 | BENLYSTA open payments reported associated product |
CMS Open Payments — General Payments 19884 supporting records · 5034 recipient NPIs · example record 1190332353 |
Benlysta · 2024 Exact normalized brand match · 1 Part D row |
11 | 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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Prednisone | Prednisone | 155 | 24 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 99 | 19 |
| Hydroxychloroquine Sulfate | Hydroxychloroquine Sulfate | 62 | 17 |
| Tramadol Hcl | Tramadol Hcl | 62 | 13 |
| Duloxetine Hcl | Duloxetine Hcl | 59 | 11 |
| Levothyroxine Sodium | Levothyroxine Sodium | 59 | 19 |
| Gabapentin | Gabapentin | 58 | 13 |
| Celecoxib | Celecoxib | 54 | 14 |
| Synthroid | Levothyroxine Sodium | 44 | 12 |
| Omeprazole | Omeprazole | 39 | 15 |
| Losartan Potassium | Losartan Potassium | 37 | suppressed |
| Meloxicam | Meloxicam | 37 | suppressed |
| Atorvastatin Calcium | Atorvastatin Calcium | 36 | suppressed |
| Famotidine | Famotidine | 34 | suppressed |
| Colchicine | Colchicine | 33 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 33 | suppressed |
| Potassium Chloride | Potassium Chloride | 33 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 32 | suppressed |
| Amlodipine Besylate | Amlodipine Besylate | 31 | suppressed |
| Ibuprofen | Ibuprofen | 31 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 31 | suppressed |
| Rasuvo | Methotrexate/Pf | 30 | suppressed |
| Pregabalin | Pregabalin | 29 | suppressed |
| Rinvoq | Upadacitinib | 28 | suppressed |
| Acetaminophen-Codeine | Acetaminophen With Codeine | 26 | suppressed |
| Methotrexate | Methotrexate Sodium | 26 | 13 |
| Trazodone Hcl | Trazodone Hcl | 24 | suppressed |
| Lisinopril | Lisinopril | 22 | suppressed |
| Methylprednisolone | Methylprednisolone | 22 | 18 |
| Cosentyx Sensoready (2 Pens) | Secukinumab | 21 | suppressed |
| Enbrel Sureclick | Etanercept | 21 | suppressed |
| Pantoprazole Sodium | Pantoprazole Sodium | 21 | suppressed |
| Leflunomide | Leflunomide | 20 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 19 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 19 | suppressed |
| Allopurinol | Allopurinol | 18 | suppressed |
| Lorazepam | Lorazepam | 18 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 18 | suppressed |
| Topiramate | Topiramate | 17 | suppressed |
| Diazepam | Diazepam | 16 | suppressed |
| Bupropion Xl | Bupropion Hcl | 15 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 15 | suppressed |
| Potassium Citrate Er | Potassium Citrate | 15 | suppressed |
| Alprazolam | Alprazolam | 14 | suppressed |
| Cevimeline Hcl | Cevimeline Hcl | 14 | suppressed |
| Cimzia (2 Pack) | Certolizumab Pegol | 13 | suppressed |
| Gammagard Liquid | Immun Glob G(Igg)/Gly/Iga Ov50 | 13 | suppressed |
| Humira(Cf) Pen | Adalimumab | 13 | suppressed |
| Hydrochlorothiazide | Hydrochlorothiazide | 13 | suppressed |
| Kevzara | Sarilumab | 13 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 13 | suppressed |
| Otrexup | Methotrexate/Pf | 13 | suppressed |
| Estradiol (Once Weekly) | Estradiol | 12 | suppressed |
| Icosapent Ethyl | Icosapent Ethyl | 12 | suppressed |
| Morphine Sulfate Er | Morphine Sulfate | 12 | suppressed |
| Np Thyroid | Thyroid,pork | 12 | suppressed |
| Otezla | Apremilast | 12 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 11 | suppressed |
| Azathioprine | Azathioprine | 11 | suppressed |
| Benlysta | Belimumab | 11 | suppressed |
| Linzess | Linaclotide | 11 | suppressed |
| Nabumetone | Nabumetone | 11 | suppressed |
| Tramadol Hcl Er | Tramadol Hcl | 11 | suppressed |
Timeline
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 | $57,148.66 · 124 records | Amgen Inc. | ACTHAR, BENLYSTA, Bimzelx, COSENTYX, CRYSVITA, ENBREL, EVENITY, Gazyva, KEVZARA, KRYSTEXXA, OTEZLA, RINVOQ, SAPHNELO, SIMPONI ARIA, SKYRIZI, STRENSIQ, TAVNEOS, TREMFYA, UPLIZNA, XELJANZ | 6 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| 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