Payment overview · 2025
General Payments
$5,888.11
208 reported records · 39 companies
Healthcare provider profile · identity verified
Er-Kai Gao, M.D.
Allopathic & Osteopathic Physicians|Neurological Surgery · LA MESA, CA · NPI 1710064944
Verified facts
What the public records show
CMS Open Payments records show Er-Kai Gao, M.D. received $5,888.11 in general payments during 2025 across 208 reported records.
UCB, Inc. accounted for 18.6% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 52 associated products.
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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Nurtec Odt 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 34 claims for Panzyga by this doctor in 2024.
Takeda Pharmaceuticals U.S.A., 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 GAMMAGARD LIQUID as an associated drug or biological on 29 records involving 8 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Gammagard Liquid by this doctor in 2024.
Tanabe Pharma America, 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 Radicava ORS as an associated drug or biological on 38 records involving 8 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Radicava Ors 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 |
|---|---|---|---|---|---|
| UCB, Inc. | Unresolved — no canonical attribution shown | $1,092.26 | 18.6% | 30 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $498.06 | 8.5% | 37 | 2025 |
| SK Life Science, Inc. |
SK Life Science, Inc. exact · evidence 2025-04-03 |
$464.99 | 7.9% | 10 | 2025 |
| Alnylam Pharmaceuticals Inc. | Unresolved — no canonical attribution shown | $346.81 | 5.9% | 6 | 2025 |
| Eisai Inc. | Unresolved — no canonical attribution shown | $346.59 | 5.9% | 8 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $234.01 | 4.0% | 4 | 2025 |
| Neurelis, Inc. |
Neurelis, Inc. exact · evidence 2025-02-20 |
$220.12 | 3.7% | 10 | 2025 |
| Alexion Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $219.27 | 3.7% | 4 | 2025 |
| Lilly USA, LLC | Unresolved — no canonical attribution shown | $197.80 | 3.4% | 6 | 2025 |
| Amneal Pharmaceuticals LLC | Unresolved — no canonical attribution shown | $175.87 | 3.0% | 5 | 2025 |
| Biogen, Inc. | Unresolved — no canonical attribution shown | $171.62 | 2.9% | 8 | 2025 |
| TG Therapeutics, Inc. | Unresolved — no canonical attribution shown | $161.64 | 2.8% | 6 | 2025 |
| ACADIA Pharmaceuticals Inc | Unresolved — no canonical attribution shown | $140.43 | 2.4% | 5 | 2025 |
| Otsuka America Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $134.60 | 2.3% | 5 | 2025 |
| LivaNova USA, Inc. | Unresolved — no canonical attribution shown | $126.24 | 2.1% | 6 | 2025 |
| Amgen Inc. | Unresolved — no canonical attribution shown | $111.59 | 1.9% | 5 | 2025 |
| GE HEALTHCARE | Unresolved — no canonical attribution shown | $109.33 | 1.9% | 3 | 2025 |
| Neurocrine BioSciences, Inc. | Unresolved — no canonical attribution shown | $100.43 | 1.7% | 4 | 2025 |
| Celgene Corporation | Unresolved — no canonical attribution shown | $86.40 | 1.5% | 4 | 2025 |
| Lundbeck LLC | Unresolved — no canonical attribution shown | $84.17 | 1.4% | 3 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $69.23 | 1.2% | 3 | 2025 |
| Axsome Therapeutics, Inc. | Unresolved — no canonical attribution shown | $68.74 | 1.2% | 3 | 2025 |
| Merz Pharmaceuticals, LLC | Unresolved — no canonical attribution shown | $68.20 | 1.2% | 2 | 2025 |
| Takeda Pharmaceuticals U.S.A., Inc. | Unresolved — no canonical attribution shown | $68.09 | 1.2% | 3 | 2025 |
| ARGENX US, INC. | Unresolved — no canonical attribution shown | $66.12 | 1.1% | 2 | 2025 |
| Aucta Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $62.44 | 1.1% | 4 | 2025 |
| Grifols USA, LLC | Unresolved — no canonical attribution shown | $61.71 | 1.1% | 3 | 2025 |
| CSL Behring | Unresolved — no canonical attribution shown | $60.08 | 1.0% | 3 | 2025 |
| MDD US Operations, LLC | Unresolved — no canonical attribution shown | $59.90 | 1.0% | 3 | 2025 |
| Teva Pharmaceuticals USA, Inc. | Unresolved — no canonical attribution shown | $39.68 | 0.7% | 2 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $36.69 | 0.6% | 2 | 2025 |
| SpringWorks Therapeutics, Inc. | Unresolved — no canonical attribution shown | $34.97 | 0.6% | 1 | 2025 |
| Kedrion Biopharma, Inc. | Unresolved — no canonical attribution shown | $31.77 | 0.5% | 2 | 2025 |
| Noctrix Health, Inc. | Unresolved — no canonical attribution shown | $27.18 | 0.5% | 1 | 2025 |
| Tanabe Pharma America, Inc. | Unresolved — no canonical attribution shown | $26.16 | 0.4% | 1 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $24.60 | 0.4% | 1 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $22.46 | 0.4% | 1 | 2025 |
| InSightec,Inc | Unresolved — no canonical attribution shown | $20.82 | 0.3% | 1 | 2025 |
| KYOWA KIRIN, INC. | Unresolved — no canonical attribution shown | $17.04 | 0.3% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $5,887.38 | 207 |
| Travel and Lodging | $0.73 | 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 |
|---|---|---|---|---|---|
| LEQEMBI Normalized: leqembi |
Drug | Biogen, Inc., Eisai Inc. | $463.97 | 13 | 2025 |
Source payment records
|
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $368.14 | 32 | 2025 |
Source payment records
|
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $362.64 | 30 | 2025 |
Source payment records
|
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| AMVUTTRA Normalized: amvuttra |
Drug | Alnylam Pharmaceuticals Inc. | $346.81 | 6 | 2025 |
Source payment records
|
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| Zilbrysq Normalized: zilbrysq |
Drug | UCB, Inc. | $343.58 | 10 | 2025 |
Source payment records
|
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| Nayzilam Normalized: nayzilam |
Drug | UCB, Inc. | $283.22 | 7 | 2025 |
Source payment records
|
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| Fintepla Normalized: fintepla |
Drug | UCB, Inc. | $257.62 | 5 | 2025 |
Source payment records
|
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| VALTOCO Normalized: valtoco |
Drug | Neurelis, Inc. | $220.12 | 10 | 2025 |
Source payment records
|
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| ULTOMIRIS Normalized: ultomiris |
Biological | Alexion Pharmaceuticals, Inc. | $219.27 | 4 | 2025 |
Source payment records
|
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| Briviact Normalized: briviact |
Drug | UCB, Inc. | $207.84 | 8 | 2025 |
Source payment records
|
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| KISUNLA Normalized: kisunla |
Drug | Lilly USA, LLC | $193.95 | 5 | 2025 |
Source payment records
|
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| CREXONT Normalized: crexont |
Drug | Amneal Pharmaceuticals LLC | $175.87 | 5 | 2025 |
Source payment records
|
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| BRIUMVI Normalized: briumvi |
Drug | TG Therapeutics, Inc. | $161.64 | 6 | 2025 |
Source payment records
|
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| NUPLAZID Normalized: nuplazid |
Drug | ACADIA Pharmaceuticals Inc | $140.43 | 5 | 2025 |
Source payment records
|
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| REXULTI Normalized: rexulti |
Drug | Otsuka America Pharmaceutical, Inc. | $134.60 | 5 | 2025 |
Source payment records
|
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| VYALEV Normalized: vyalev |
Drug | ABBVIE INC. | $111.97 | 4 | 2025 |
Source payment records
|
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| UPLIZNA Normalized: uplizna |
Biological | Amgen Inc. | $111.59 | 5 | 2025 |
Source payment records
|
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| VNS THERAPY SENTIVA MODEL 1000 GENERATOR Normalized: vns therapy sentiva model 1000 generator |
Device | LivaNova USA, Inc. | $108.47 | 5 | 2025 |
Source payment records
|
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| INGREZZA Normalized: ingrezza |
Drug | Neurocrine BioSciences, Inc. | $100.43 | 4 | 2025 |
Source payment records
|
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| ZEPOSIA Normalized: zeposia |
Drug | Celgene Corporation | $86.40 | 4 | 2025 |
Source payment records
|
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| VYEPTI Normalized: vyepti |
Biological | Lundbeck LLC | $84.17 | 3 | 2025 |
Source payment records
|
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| Ocrevus Zunovo Normalized: ocrevus zunovo |
Biological | Genentech USA, Inc. | $69.23 | 3 | 2025 |
Source payment records
|
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| Symbravo Normalized: symbravo |
Drug | Axsome Therapeutics, Inc. | $68.74 | 3 | 2025 |
Source payment records
|
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| INBRIJA Normalized: inbrija |
Drug | Merz Pharmaceuticals, LLC | $68.20 | 2 | 2025 |
Source payment records
|
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| HYQVIA Normalized: hyqvia |
Biological | Takeda Pharmaceuticals U.S.A., Inc. | $68.09 | 3 | 2025 |
Source payment records
|
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| VYVGART HYTRULO Normalized: vyvgart hytrulo |
Drug | ARGENX US, INC. | $66.12 | 2 | 2025 |
Source payment records
|
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| Motpoly XR Normalized: motpoly xr |
Drug | Aucta Pharmaceuticals, Inc. | $62.44 | 4 | 2025 |
Source payment records
|
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| Gamunex-C Normalized: gamunex c |
Biological | Grifols USA, LLC | $61.71 | 3 | 2025 |
Source payment records
|
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| Hizentra Normalized: hizentra |
Biological | CSL Behring | $60.08 | 3 | 2025 |
Source payment records
|
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| VUMERITY Normalized: vumerity |
Drug | Biogen, Inc. | $48.67 | 2 | 2025 |
Source payment records
|
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| Xeomin Normalized: xeomin |
Biological | Merz Pharmaceuticals, LLC | $45.63 | 1 | 2025 |
Source payment records
|
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| Qelbree Normalized: qelbree |
Drug | MDD US Operations, LLC | $41.98 | 2 | 2025 |
Source payment records
|
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| AUSTEDO XR Normalized: austedo xr |
Drug | Teva Pharmaceuticals USA, Inc. | $39.68 | 2 | 2025 |
Source payment records
|
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| WAINUA Normalized: wainua |
Drug | AstraZeneca Pharmaceuticals LP | $36.69 | 2 | 2025 |
Source payment records
|
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| GOMEKLI Normalized: gomekli |
Drug | SpringWorks Therapeutics, Inc. | $34.97 | 1 | 2025 |
Source payment records
|
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| Albuked Normalized: albuked |
Biological | Kedrion Biopharma, Inc. | $31.77 | 2 | 2025 |
Source payment records
|
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| GAMMAKED Normalized: gammaked |
Biological | Kedrion Biopharma, Inc. | $31.77 | 2 | 2025 |
Source payment records
|
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| KEDRAB Normalized: kedrab |
Biological | Kedrion Biopharma, Inc. | $31.77 | 2 | 2025 |
Source payment records
|
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| KOATE Normalized: koate |
Biological | Kedrion Biopharma, Inc. | $31.77 | 2 | 2025 |
Source payment records
|
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| RhoGAM Ultra-Filtered PLUS Normalized: rhogam ultra filtered plus |
Biological | Kedrion Biopharma, Inc. | $31.77 | 2 | 2025 |
Source payment records
|
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| NIDRA Normalized: nidra |
Device | Noctrix Health, Inc. | $27.18 | 1 | 2025 |
Source payment records
|
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| Radicava Normalized: radicava |
Drug | Tanabe Pharma America, Inc. | $26.16 | 1 | 2025 |
Source payment records
|
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| KESIMPTA Normalized: kesimpta |
Drug | Novartis Pharmaceuticals Corporation | $24.60 | 1 | 2025 |
Source payment records
|
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| ZAVZPRET Normalized: zavzpret |
Drug | PFIZER INC. | $22.46 | 1 | 2025 |
Source payment records
|
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| Exablate Normalized: exablate |
Device | InSightec,Inc | $20.82 | 1 | 2025 |
Source payment records
|
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| Gocovri Normalized: gocovri |
Drug | MDD US Operations, LLC | $17.92 | 1 | 2025 |
Source payment records
|
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| VNS Therapy Normalized: vns therapy |
Device | LivaNova USA, Inc. | $17.77 | 1 | 2025 |
Source payment records
|
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| NOURIANZ Normalized: nourianz |
Drug | KYOWA KIRIN, INC. | $17.04 | 1 | 2025 |
Source payment records
|
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| QALSODY Normalized: qalsody |
Drug | Biogen, Inc. | $5.57 | 1 | 2025 |
Source payment records
|
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| SPINRAZA Normalized: spinraza |
Biological | Biogen, Inc. | $5.57 | 1 | 2025 |
Source payment records
|
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| EMGALITY Normalized: emgality |
Drug | Lilly USA, LLC | $3.85 | 1 | 2025 |
Source payment records
|
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| REYVOW Normalized: reyvow |
Drug | Lilly USA, LLC | $3.85 | 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 |
|---|---|---|---|---|---|---|
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | NURTEC ODT open payments reported associated product |
CMS Open Payments — General Payments 217574 supporting records · 54025 recipient NPIs · example record 1228794063 |
Nurtec Odt · 2024 Exact normalized brand match · 1 Part D row |
14 | 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 |
34 | suppressed by CMS |
| Takeda Pharmaceuticals U.S.A., Inc. Exact reporting entity; no affiliate inference |
2025 | GAMMAGARD LIQUID open payments reported associated product |
CMS Open Payments — General Payments 29 supporting records · 8 recipient NPIs · example record 1223786557 |
Gammagard Liquid · 2024 Exact normalized brand match · 1 Part D row |
17 | suppressed by CMS |
| Tanabe Pharma America, Inc. Exact reporting entity; no affiliate inference |
2025 | Radicava ORS open payments reported associated product |
CMS Open Payments — General Payments 38 supporting records · 8 recipient NPIs · example record 1243917980 |
Radicava Ors · 2024 Exact normalized brand match · 1 Part D row |
14 | 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 |
|---|---|---|---|
| Gabapentin | Gabapentin | 141 | 40 |
| Donepezil Hcl | Donepezil Hcl | 87 | 23 |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 55 | 17 |
| Memantine Hcl | Memantine Hcl | 46 | suppressed |
| Levetiracetam | Levetiracetam | 43 | 19 |
| Panzyga | Immun Glob G(Igg)-Ifas/Glycine | 34 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 26 | suppressed |
| Levetiracetam Er | Levetiracetam | 26 | 11 |
| Escitalopram Oxalate | Escitalopram Oxalate | 24 | suppressed |
| Diazepam | Diazepam | 23 | suppressed |
| Carbidopa-Levodopa-Entacapone | Carbidopa/Levodopa/Entacapone | 20 | suppressed |
| Topiramate | Topiramate | 18 | suppressed |
| Atorvastatin Calcium | Atorvastatin Calcium | 17 | suppressed |
| Gammagard Liquid | Immun Glob G(Igg)/Gly/Iga Ov50 | 17 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 17 | suppressed |
| Keppra Xr | Levetiracetam | 15 | suppressed |
| Pyridostigmine Bromide | Pyridostigmine Bromide | 15 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 15 | suppressed |
| Amantadine | Amantadine Hcl | 14 | suppressed |
| Nurtec Odt | Rimegepant Sulfate | 14 | suppressed |
| Radicava Ors | Edaravone | 14 | suppressed |
| Pregabalin | Pregabalin | 13 | suppressed |
| Primidone | Primidone | 13 | suppressed |
| Divalproex Sodium | Divalproex Sodium | 12 | suppressed |
| Losartan Potassium | Losartan Potassium | 12 | suppressed |
| Meloxicam | Meloxicam | 12 | suppressed |
| Aspirin-Dipyridamole Er | Aspirin/Dipyridamole | 11 | suppressed |
| Rasagiline Mesylate | Rasagiline Mesylate | 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 | $5,888.11 · 208 records | UCB, Inc. | AMVUTTRA, AUSTEDO XR, Albuked, BRIUMVI, Briviact, CREXONT, EMGALITY, Exablate, Fintepla, GAMMAKED, GOMEKLI, Gamunex-C, Gocovri, HYQVIA, Hizentra, INBRIJA, INGREZZA, KEDRAB, KESIMPTA, KISUNLA, KOATE, LEQEMBI, Motpoly XR, NIDRA, NOURIANZ, NUPLAZID, Nayzilam, Ocrevus Zunovo, QALSODY, QULIPTA, Qelbree, REXULTI, REYVOW, Radicava, RhoGAM Ultra-Filtered PLUS, SPINRAZA, Symbravo, UBRELVY, ULTOMIRIS, UPLIZNA, VALTOCO, VNS THERAPY SENTIVA MODEL 1000 GENERATOR, VNS Therapy, VUMERITY, VYALEV, VYEPTI, VYVGART HYTRULO, WAINUA, Xeomin, ZAVZPRET, ZEPOSIA, Zilbrysq | 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 PFIZER 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