Payment overview · 2025
General Payments
$1,196.51
45 reported records · 10 companies
Healthcare provider profile · identity verified
Chih Ming Chen, M.D.
Allopathic & Osteopathic Physicians|Internal Medicine · SPRINGFIELD, MA · NPI 1083604870
Verified facts
What the public records show
CMS Open Payments records show Chih Ming Chen, M.D. received $1,196.51 in general payments during 2025 across 45 reported records.
Boehringer Ingelheim Pharmaceuticals, Inc. accounted for 21.9% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 16 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Nucala, Ofev, Trelegy Ellipta.
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 136 claims for Symbicort by this doctor in 2024.
Boehringer Ingelheim Pharmaceuticals, 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 OFEV as an associated drug or biological on 14236 records involving 6873 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Ofev 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 NUCALA as an associated drug or biological on 100127 records involving 16970 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Nucala 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 1538 claims for Trelegy Ellipta 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 |
|---|---|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $262.61 | 21.9% | 9 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $247.61 | 20.7% | 14 | 2025 |
| GENZYME CORPORATION | Unresolved — no canonical attribution shown | $224.98 | 18.8% | 3 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $167.29 | 14.0% | 7 | 2025 |
| Grifols USA, LLC | Unresolved — no canonical attribution shown | $83.39 | 7.0% | 3 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $60.64 | 5.1% | 3 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $44.03 | 3.7% | 1 | 2025 |
| Verona Pharma, Inc. | Unresolved — no canonical attribution shown | $41.48 | 3.5% | 2 | 2025 |
| Regeneron Healthcare Solutions, Inc. | Unresolved — no canonical attribution shown | $38.24 | 3.2% | 2 | 2025 |
| Pulmonx Corporation | Unresolved — no canonical attribution shown | $26.24 | 2.2% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,196.51 | 45 |
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 |
|---|---|---|---|---|---|
| DUPIXENT Normalized: dupixent |
Biological | GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. | $263.22 | 5 | 2025 |
Source payment records
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| OFEV Normalized: ofev |
Drug | Boehringer Ingelheim Pharmaceuticals, Inc. | $209.06 | 7 | 2025 |
Source payment records
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| NUCALA Normalized: nucala |
Biological | GlaxoSmithKline, LLC. | $155.03 | 8 | 2025 |
Source payment records
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| TRELEGY ELLIPTA Normalized: trelegy ellipta |
Drug | GlaxoSmithKline, LLC. | $92.58 | 6 | 2025 |
Source payment records
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| Prolastin-C Liquid Normalized: prolastin c liquid |
Biological | Grifols USA, LLC | $83.39 | 3 | 2025 |
Source payment records
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| TEZSPIRE Normalized: tezspire |
Biological | Amgen Inc., AstraZeneca Pharmaceuticals LP | $81.90 | 5 | 2025 |
Source payment records
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| FASENRA Normalized: fasenra |
Biological | AstraZeneca Pharmaceuticals LP | $78.11 | 3 | 2025 |
Source payment records
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| JASCAYD Normalized: jascayd |
Drug | Boehringer Ingelheim Pharmaceuticals, Inc. | $53.55 | 2 | 2025 |
Source payment records
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| RYBREVANT Normalized: rybrevant |
Drug | Janssen Biotech, Inc. | $44.03 | 1 | 2025 |
Source payment records
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| Ohtuvayre Normalized: ohtuvayre |
Drug | Verona Pharma, Inc. | $41.48 | 2 | 2025 |
Source payment records
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| AIRSUPRA Normalized: airsupra |
Drug | AstraZeneca Pharmaceuticals LP | $36.82 | 1 | 2025 |
Source payment records
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| TAGRISSO Normalized: tagrisso |
Drug | AstraZeneca Pharmaceuticals LP | $31.10 | 1 | 2025 |
Source payment records
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| CHARTIS CATHETER Normalized: chartis catheter |
Device | Pulmonx Corporation | $26.24 | 1 | 2025 |
Source payment records
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| PULMONX CHARTIS TABLET CONSOLE Normalized: pulmonx chartis tablet console |
Device | Pulmonx Corporation | $26.24 | 1 | 2025 |
Source payment records
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| ZEPHYR DELIVERY CATHETER Normalized: zephyr delivery catheter |
Device | Pulmonx Corporation | $26.24 | 1 | 2025 |
Source payment records
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| ZEPHYR ENDOBRONCHIAL VALVE Normalized: zephyr endobronchial valve |
Device | Pulmonx Corporation | $26.24 | 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 |
|---|---|---|---|---|---|---|
| NUCALA nucala |
2025 | Nucala | 2024 | 28 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| OFEV ofev |
2025 | Ofev | 2024 | 42 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| TRELEGY ELLIPTA trelegy ellipta |
2025 | Trelegy Ellipta | 2024 | 1538 | 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 |
136 | 31 |
| Boehringer Ingelheim Pharmaceuticals, Inc. Exact reporting entity; no affiliate inference |
2025 | OFEV open payments reported associated product |
CMS Open Payments — General Payments 14236 supporting records · 6873 recipient NPIs · example record 1221811762 |
Ofev · 2024 Exact normalized brand match · 1 Part D row |
42 | suppressed by CMS |
| GlaxoSmithKline, LLC. Exact reporting entity; no affiliate inference |
2025 | NUCALA open payments reported associated product |
CMS Open Payments — General Payments 100127 supporting records · 16970 recipient NPIs · example record 1190332378 |
Nucala · 2024 Exact normalized brand match · 1 Part D row |
28 | suppressed by CMS |
| GlaxoSmithKline, LLC. Exact reporting entity; no affiliate inference |
2025 | TRELEGY ELLIPTA open payments reported associated product |
CMS Open Payments — General Payments 131532 supporting records · 37148 recipient NPIs · example record 1190332369 |
Trelegy Ellipta · 2024 Exact normalized brand match · 1 Part D row |
1538 | 260 |
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 |
|---|---|---|---|
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 1538 | 260 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 1377 | 393 |
| Anoro Ellipta | Umeclidinium Brm/Vilanterol Tr | 703 | 132 |
| Prednisone | Prednisone | 536 | 161 |
| Wixela Inhub | Fluticasone Propion/Salmeterol | 510 | 104 |
| Breo Ellipta | Fluticasone/Vilanterol | 468 | 81 |
| Montelukast Sodium | Montelukast Sodium | 414 | 102 |
| Ventolin Hfa | Albuterol Sulfate | 386 | 103 |
| Incruse Ellipta | Umeclidinium Bromide | 379 | 63 |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 260 | 53 |
| Azithromycin | Azithromycin | 218 | 72 |
| Advair Hfa | Fluticasone Propion/Salmeterol | 208 | 43 |
| Combivent Respimat | Ipratropium/Albuterol Sulfate | 202 | 45 |
| Spiriva Respimat | Tiotropium Bromide | 166 | 38 |
| Arnuity Ellipta | Fluticasone Furoate | 150 | 37 |
| Symbicort | Budesonide/Formoterol Fumarate | 136 | 31 |
| Roflumilast | Roflumilast | 128 | 25 |
| Fluticasone Propionate | Fluticasone Propionate | 121 | 40 |
| Budesonide-Formoterol Fumarate | Budesonide/Formoterol Fumarate | 109 | 28 |
| Breztri Aerosphere | Budesonide/Glycopyr/Formoterol | 96 | 24 |
| Fluticasone Propionate Hfa | Fluticasone Propionate | 67 | 17 |
| Dulera | Mometasone/Formoterol | 56 | 15 |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 54 | 48 |
| Stiolto Respimat | Tiotropium Br/Olodaterol Hcl | 48 | suppressed |
| Ofev | Nintedanib Esylate | 42 | suppressed |
| Azelastine Hcl | Azelastine Hcl | 33 | suppressed |
| Spiriva Handihaler | Tiotropium Bromide | 30 | suppressed |
| Advair Diskus | Fluticasone Propion/Salmeterol | 29 | 12 |
| Fluticasone-Salmeterol Hfa | Fluticasone Propion/Salmeterol | 29 | 17 |
| Nucala | Mepolizumab | 28 | suppressed |
| Dupixent Pen | Dupilumab | 26 | suppressed |
| Atrovent Hfa | Ipratropium Bromide | 22 | suppressed |
| Prolastin C | Alpha-1-Proteinase Inhibitor | 22 | suppressed |
| Fluticasone-Vilanterol | Fluticasone/Vilanterol | 19 | 12 |
| Levalbuterol Tartrate Hfa | Levalbuterol Tartrate | 18 | suppressed |
| Varenicline Tartrate | Varenicline Tartrate | 17 | 11 |
| Ipratropium Bromide | Ipratropium Bromide | 15 | suppressed |
| Qvar Redihaler | Beclomethasone Dipropionate | 13 | suppressed |
| Zemaira | Alpha-1-Proteinase Inhibitor | 13 | suppressed |
| Dupixent Syringe | Dupilumab | 12 | 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 | $1,196.51 · 45 records | Boehringer Ingelheim Pharmaceuticals, Inc. | AIRSUPRA, CHARTIS CATHETER, DUPIXENT, FASENRA, JASCAYD, NUCALA, OFEV, Ohtuvayre, PULMONX CHARTIS TABLET CONSOLE, Prolastin-C Liquid, RYBREVANT, TAGRISSO, TEZSPIRE, TRELEGY ELLIPTA, ZEPHYR DELIVERY CATHETER, ZEPHYR ENDOBRONCHIAL VALVE | 4 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Nucala 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