Payment overview · 2025
General Payments
$1,115.37
47 reported records · 21 companies
Healthcare provider profile · identity verified
Christopher Di Simone, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · RANCHO MIRAGE, CA · NPI 1861461147
Verified facts
What the public records show
CMS Open Payments records show Christopher Di Simone, M.D. received $1,115.37 in general payments during 2025 across 47 reported records.
AstraZeneca Pharmaceuticals LP accounted for 18.2% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 34 associated products.
ARRAY BIOPHARMA 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 XTANDI as an associated drug or biological on 98 records involving 88 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Xtandi by this doctor in 2024.
E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 46 claims for Eliquis by this doctor in 2024.
PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 46 claims for Eliquis by this doctor in 2024.
PFIZER 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Xtandi 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 |
|---|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $202.97 | 18.2% | 9 | 2025 |
| Daiichi Sankyo Inc. | Unresolved — no canonical attribution shown | $156.96 | 14.1% | 9 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $113.03 | 10.1% | 4 | 2025 |
| ADC THERAPEUTICS AMERICA, INC. | Unresolved — no canonical attribution shown | $58.94 | 5.3% | 2 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $54.10 | 4.8% | 2 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $51.63 | 4.6% | 2 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $48.86 | 4.4% | 2 | 2025 |
| Takeda Pharmaceuticals U.S.A., Inc. | Unresolved — no canonical attribution shown | $47.38 | 4.2% | 2 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $46.32 | 4.2% | 2 | 2025 |
| Gilead Sciences, Inc. | Unresolved — no canonical attribution shown | $42.33 | 3.8% | 2 | 2025 |
| Regeneron Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $41.32 | 3.7% | 1 | 2025 |
| Regeneron Healthcare Solutions, Inc. | Unresolved — no canonical attribution shown | $35.72 | 3.2% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $32.42 | 2.9% | 1 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $27.89 | 2.5% | 1 | 2025 |
| Rigel Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $27.13 | 2.4% | 1 | 2025 |
| Tempus AI, Inc | Unresolved — no canonical attribution shown | $24.77 | 2.2% | 1 | 2025 |
| ARRAY BIOPHARMA INC | Unresolved — no canonical attribution shown | $23.37 | 2.1% | 1 | 2025 |
| SpringWorks Therapeutics, Inc. | Unresolved — no canonical attribution shown | $23.25 | 2.1% | 1 | 2025 |
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $20.77 | 1.9% | 1 | 2025 |
| Stemline Therapeutics Inc. | Unresolved — no canonical attribution shown | $20.29 | 1.8% | 1 | 2025 |
| Eisai Inc. | Unresolved — no canonical attribution shown | $15.92 | 1.4% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,092.27 | 46 |
| Education | $23.10 | 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
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| ENHERTU Normalized: enhertu |
Biological, Drug | AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. | $177.41 | 10 | 2025 |
Source payment records
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| LYNPARZA Normalized: lynparza |
Biological, Drug | AstraZeneca Pharmaceuticals LP, Merck Sharp & Dohme LLC | $105.41 | 5 | 2025 |
Source payment records
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| KISQALI Normalized: kisqali |
Drug | Novartis Pharmaceuticals Corporation | $88.55 | 3 | 2025 |
Source payment records
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| ZYNLONTA Normalized: zynlonta |
Drug | ADC THERAPEUTICS AMERICA, INC. | $58.94 | 2 | 2025 |
Source payment records
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| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $48.86 | 2 | 2025 |
Source payment records
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| Trodelvy Normalized: trodelvy |
Drug | Gilead Sciences, Inc. | $42.33 | 2 | 2025 |
Source payment records
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| LYNOZYFIC Normalized: lynozyfic |
Biological | Regeneron Pharmaceuticals, Inc. | $41.32 | 1 | 2025 |
Source payment records
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| TAGRISSO Normalized: tagrisso |
Drug | AstraZeneca Pharmaceuticals LP | $36.41 | 2 | 2025 |
Source payment records
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| LIBTAYO Normalized: libtayo |
Biological | Regeneron Healthcare Solutions, Inc. | $35.72 | 1 | 2025 |
Source payment records
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| Tecentriq Hybreza Normalized: tecentriq hybreza |
Biological | Genentech USA, Inc. | $32.70 | 1 | 2025 |
Source payment records
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| ELREXFIO Normalized: elrexfio |
Drug | PFIZER INC. | $32.42 | 1 | 2025 |
Source payment records
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| DATROWAY Normalized: datroway |
Drug | Daiichi Sankyo Inc. | $28.03 | 2 | 2025 |
Source payment records
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| JAYPIRCA Normalized: jaypirca |
Drug | Lilly USA, LLC | $27.89 | 1 | 2025 |
Source payment records
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| Gavreto Normalized: gavreto |
Drug | Rigel Pharmaceuticals, Inc. | $27.13 | 1 | 2025 |
Source payment records
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| Rezlidhia Normalized: rezlidhia |
Drug | Rigel Pharmaceuticals, Inc. | $27.13 | 1 | 2025 |
Source payment records
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| TAVALISSE Normalized: tavalisse |
Drug | Rigel Pharmaceuticals, Inc. | $27.13 | 1 | 2025 |
Source payment records
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| JEMPERLI Normalized: jemperli |
Biological | GlaxoSmithKline, LLC. | $26.98 | 1 | 2025 |
Source payment records
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| ICLUSIG Normalized: iclusig |
Drug | Takeda Pharmaceuticals U.S.A., Inc. | $26.12 | 1 | 2025 |
Source payment records
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| XT CDX Normalized: xt cdx |
Device | Tempus AI, Inc | $24.77 | 1 | 2025 |
Source payment records
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| PLUVICTO Normalized: pluvicto |
Drug | Novartis Pharmaceuticals Corporation | $24.48 | 1 | 2025 |
Source payment records
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| EPKINLY Normalized: epkinly |
Drug | ABBVIE INC. | $23.59 | 1 | 2025 |
Source payment records
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| IMBRUVICA Normalized: imbruvica |
Drug | ABBVIE INC. | $23.59 | 1 | 2025 |
Source payment records
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| BRAFTOVI Normalized: braftovi |
Drug | ARRAY BIOPHARMA INC | $23.37 | 1 | 2025 |
Source payment records
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| MEKTOVI Normalized: mektovi |
Drug | ARRAY BIOPHARMA INC | $23.37 | 1 | 2025 |
Source payment records
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| TUKYSA Normalized: tukysa |
Drug | ARRAY BIOPHARMA INC | $23.37 | 1 | 2025 |
Source payment records
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| OGSIVEO Normalized: ogsiveo |
Drug | SpringWorks Therapeutics, Inc. | $23.25 | 1 | 2025 |
Source payment records
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| Itovebi Normalized: itovebi |
Biological | Genentech USA, Inc. | $21.40 | 1 | 2025 |
Source payment records
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| NINLARO Normalized: ninlaro |
Drug | Takeda Pharmaceuticals U.S.A., Inc. | $21.26 | 1 | 2025 |
Source payment records
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| OPDIVO Normalized: opdivo |
Biological | E.R. Squibb & Sons, L.L.C. | $20.77 | 1 | 2025 |
Source payment records
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| Orserdu Normalized: orserdu |
Drug | Stemline Therapeutics Inc. | $20.29 | 1 | 2025 |
Source payment records
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| OJJAARA Normalized: ojjaara |
Drug | GlaxoSmithKline, LLC. | $19.34 | 1 | 2025 |
Source payment records
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| CALQUENCE Normalized: calquence |
Drug | AstraZeneca Pharmaceuticals LP | $19.14 | 1 | 2025 |
Source payment records
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| Lenvima Normalized: lenvima |
Drug | Eisai Inc. | $15.92 | 1 | 2025 |
Source payment records
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| KEYTRUDA QLEX Normalized: keytruda qlex |
Biological | Merck Sharp & Dohme LLC | $15.15 | 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.
Public prescribing for products named in payments
No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.
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 |
|---|---|---|---|---|---|---|
| ARRAY BIOPHARMA INC Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 98 supporting records · 88 recipient NPIs · example record 1228800820 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
17 | suppressed by CMS |
| E.R. Squibb & Sons, L.L.C. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 27956 supporting records · 14870 recipient NPIs · example record 1184377713 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
46 | 12 |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | ELIQUIS open payments reported associated product |
CMS Open Payments — General Payments 87112 supporting records · 36032 recipient NPIs · example record 1228794063 |
Eliquis · 2024 Exact normalized brand match · 1 Part D row |
46 | 12 |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 19368 supporting records · 7657 recipient NPIs · example record 1228794230 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
17 | 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 |
|---|---|---|---|
| Dexamethasone | Dexamethasone | 77 | 30 |
| Prochlorperazine Maleate | Prochlorperazine Maleate | 47 | 37 |
| Eliquis | Apixaban | 46 | 12 |
| Acyclovir | Acyclovir | 36 | 13 |
| Anastrozole | Anastrozole | 34 | 20 |
| Olanzapine | Olanzapine | 33 | 17 |
| Prednisone | Prednisone | 26 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 23 | 19 |
| Xtandi | Enzalutamide | 17 | suppressed |
| Potassium Chloride | Potassium Chloride | 16 | suppressed |
| Brukinsa | Zanubrutinib | 15 | suppressed |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 14 | suppressed |
| Tamoxifen Citrate | Tamoxifen Citrate | 13 | suppressed |
| Xarelto | Rivaroxaban | 12 | suppressed |
| Diphenoxylate-Atropine | Diphenoxylate Hcl/Atropine | 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 | $1,115.37 · 47 records | AstraZeneca Pharmaceuticals LP | BRAFTOVI, CALQUENCE, DATROWAY, ELREXFIO, ENHERTU, EPKINLY, Gavreto, ICLUSIG, IMBRUVICA, Itovebi, JAYPIRCA, JEMPERLI, KEYTRUDA, KEYTRUDA QLEX, KISQALI, LIBTAYO, LYNOZYFIC, LYNPARZA, Lenvima, MEKTOVI, NINLARO, OGSIVEO, OJJAARA, OPDIVO, Orserdu, PLUVICTO, Rezlidhia, TAGRISSO, TAVALISSE, TUKYSA, Tecentriq Hybreza, Trodelvy, XT CDX, ZYNLONTA | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- How do you evaluate evidence when you have a financial relationship with ARRAY BIOPHARMA 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