Payment overview · 2025
General Payments
$940.72
37 reported records · 15 companies
Healthcare provider profile · identity verified
Timothy Lax, MD
Allopathic & Osteopathic Physicians|Allergy & Immunology · BROOKLINE, MA · NPI 1487810156
Verified facts
What the public records show
CMS Open Payments records show Timothy Lax, MD received $940.72 in general payments during 2025 across 37 reported records.
AstraZeneca Pharmaceuticals LP accounted for 21.8% 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: Panzyga, Xolair.
AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Symbicort by this doctor in 2024.
CSL Behring reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Privigen as an associated drug or biological on 464 records involving 289 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Privigen by this doctor in 2024.
Genentech USA, 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 Xolair as an associated drug or biological on 11057 records involving 4008 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Xolair 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 PANZYGA as an associated drug or biological on 8346 records involving 3334 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Panzyga 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 | $204.90 | 21.8% | 9 | 2025 |
| CSL Behring | Unresolved — no canonical attribution shown | $138.53 | 14.7% | 5 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $104.72 | 11.1% | 3 | 2025 |
| GC Biopharma USA, Inc. | Unresolved — no canonical attribution shown | $87.60 | 9.3% | 3 | 2025 |
| ARS Pharmaceuticals Operations, Inc. | Unresolved — no canonical attribution shown | $63.45 | 6.7% | 3 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $57.95 | 6.2% | 2 | 2025 |
| Galderma Laboratories, L.P. | Unresolved — no canonical attribution shown | $51.11 | 5.4% | 3 | 2025 |
| Ionis Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $45.53 | 4.8% | 2 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $32.43 | 3.5% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $30.32 | 3.2% | 1 | 2025 |
| Optinose US, Inc. | Unresolved — no canonical attribution shown | $29.96 | 3.2% | 1 | 2025 |
| Pharming Healthcare, Inc. | Unresolved — no canonical attribution shown | $27.67 | 2.9% | 1 | 2025 |
| Takeda Pharmaceuticals U.S.A., Inc. | Unresolved — no canonical attribution shown | $25.79 | 2.7% | 1 | 2025 |
| Grifols USA, LLC | Unresolved — no canonical attribution shown | $20.81 | 2.2% | 1 | 2025 |
| Cycle Pharmaceuticals Inc | Unresolved — no canonical attribution shown | $19.95 | 2.1% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $940.72 | 37 |
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 |
|---|---|---|---|---|---|
| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $141.53 | 6 | 2025 |
Source payment records
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| FASENRA Normalized: fasenra |
Biological | AstraZeneca Pharmaceuticals LP | $90.53 | 4 | 2025 |
Source payment records
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| ALYGLO Normalized: alyglo |
Drug | GC Biopharma USA, Inc. | $87.60 | 3 | 2025 |
Source payment records
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| DUPIXENT Normalized: dupixent |
Biological | GENZYME CORPORATION | $77.32 | 2 | 2025 |
Source payment records
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| Haegarda Normalized: haegarda |
Biological | CSL Behring | $71.89 | 3 | 2025 |
Source payment records
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| Andembry Normalized: andembry |
Biological | CSL Behring | $66.64 | 2 | 2025 |
Source payment records
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| NEFFY Normalized: neffy |
Drug | ARS Pharmaceuticals Operations, Inc. | $63.45 | 3 | 2025 |
Source payment records
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| TEZSPIRE Normalized: tezspire |
Biological | Amgen Inc. | $57.95 | 2 | 2025 |
Source payment records
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| NEMLUVIO Normalized: nemluvio |
Drug | Galderma Laboratories, L.P. | $51.11 | 3 | 2025 |
Source payment records
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| DAWNZERA Normalized: dawnzera |
Drug | Ionis Pharmaceuticals, Inc. | $45.53 | 2 | 2025 |
Source payment records
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| Xolair Normalized: xolair |
Biological | Genentech USA, Inc. | $32.43 | 1 | 2025 |
Source payment records
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| CUTAQUIG Normalized: cutaquig |
Biological | PFIZER INC. | $30.32 | 1 | 2025 |
Source payment records
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| OCTAGAM IMMUNE GLOBULIN (HUMAN) Normalized: octagam immune globulin human |
Drug | PFIZER INC. | $30.32 | 1 | 2025 |
Source payment records
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| PANZYGA Normalized: panzyga |
Biological | PFIZER INC. | $30.32 | 1 | 2025 |
Source payment records
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| Xhance Normalized: xhance |
Drug | Optinose US, Inc. | $29.96 | 1 | 2025 |
Source payment records
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| RUCONEST Normalized: ruconest |
Biological | Pharming Healthcare, Inc. | $27.67 | 1 | 2025 |
Source payment records
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| AYVAKIT Normalized: ayvakit |
Biological | GENZYME CORPORATION | $27.40 | 1 | 2025 |
Source payment records
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| CUVITRU Normalized: cuvitru |
Biological | Takeda Pharmaceuticals U.S.A., Inc. | $25.79 | 1 | 2025 |
Source payment records
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| Prolastin-C Liquid Normalized: prolastin c liquid |
Biological | Grifols USA, LLC | $20.81 | 1 | 2025 |
Source payment records
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| Sajazir Normalized: sajazir |
Drug | Cycle Pharmaceuticals Inc | $19.95 | 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
| Open Payments product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| PANZYGA panzyga |
2025 | Panzyga | 2024 | 32 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Xolair xolair |
2025 | Xolair | 2024 | 11 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 |
|---|---|---|---|---|---|---|
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | SYMBICORT open payments reported associated product |
CMS Open Payments — General Payments 71 supporting records · 51 recipient NPIs · example record 1206132610 |
Symbicort · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
| CSL Behring Exact reporting entity; no affiliate inference |
2025 | Privigen open payments reported associated product |
CMS Open Payments — General Payments 464 supporting records · 289 recipient NPIs · example record 1232339064 |
Privigen · 2024 Exact normalized brand match · 1 Part D row |
42 | suppressed by CMS |
| Genentech USA, Inc. Exact reporting entity; no affiliate inference |
2025 | Xolair open payments reported associated product |
CMS Open Payments — General Payments 11057 supporting records · 4008 recipient NPIs · example record 1211488440 |
Xolair · 2024 Exact normalized brand match · 1 Part D row |
11 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | PANZYGA open payments reported associated product |
CMS Open Payments — General Payments 8346 supporting records · 3334 recipient NPIs · example record 1228795271 |
Panzyga · 2024 Exact normalized brand match · 1 Part D row |
32 | 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 |
|---|---|---|---|
| Ipratropium Bromide | Ipratropium Bromide | 65 | 39 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 62 | 35 |
| Montelukast Sodium | Montelukast Sodium | 60 | 23 |
| Azelastine Hcl | Azelastine Hcl | 55 | 23 |
| Breo Ellipta | Fluticasone/Vilanterol | 43 | 15 |
| Privigen | Immun Glob G(Igg)/Pro/Iga 0-50 | 42 | suppressed |
| Advair Hfa | Fluticasone Propion/Salmeterol | 40 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 40 | 18 |
| Arnuity Ellipta | Fluticasone Furoate | 35 | suppressed |
| Panzyga | Immun Glob G(Igg)-Ifas/Glycine | 32 | suppressed |
| Qvar Redihaler | Beclomethasone Dipropionate | 31 | suppressed |
| Epinephrine | Epinephrine | 23 | 18 |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 19 | suppressed |
| Prednisone | Prednisone | 17 | 11 |
| Zafirlukast | Zafirlukast | 17 | suppressed |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 16 | suppressed |
| Symbicort | Budesonide/Formoterol Fumarate | 13 | suppressed |
| Dupixent Pen | Dupilumab | 12 | suppressed |
| Xolair | Omalizumab | 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 | $940.72 · 37 records | AstraZeneca Pharmaceuticals LP | AIRSUPRA, ALYGLO, AYVAKIT, Andembry, CUTAQUIG, CUVITRU, DAWNZERA, DUPIXENT, FASENRA, Haegarda, NEFFY, NEMLUVIO, OCTAGAM IMMUNE GLOBULIN (HUMAN), PANZYGA, Prolastin-C Liquid, RUCONEST, Sajazir, TEZSPIRE, Xhance, Xolair | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Panzyga play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with AstraZeneca Pharmaceuticals LP?
- 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