Payment overview · 2025
General Payments
$5,851.68
87 reported records · 25 companies
Healthcare provider profile · identity verified
Celina Hamdan, PA-C
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · KNOXVILLE, TN · NPI 1285224899
Verified facts
What the public records show
CMS Open Payments records show Celina Hamdan, PA-C received $5,851.68 in general payments during 2025 across 87 reported records.
PFIZER INC. accounted for 65.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 33 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Botox, Briviact, Nuedexta, Nurtec Odt, Qulipta, Ubrelvy.
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 BOTOX as an associated drug or biological on 140321 records involving 30103 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Botox 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 QULIPTA as an associated drug or biological on 298617 records involving 58957 distinct recipient NPIs. Public Medicare Part D data also shows 58 claims for Qulipta 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 UBRELVY as an associated drug or biological on 299803 records involving 61203 distinct recipient NPIs. Public Medicare Part D data also shows 28 claims for Ubrelvy by this doctor in 2024.
Otsuka America Pharmaceutical, 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 NUEDEXTA as an associated drug or biological on 393 records involving 285 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Nuedexta 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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 94 claims for Nurtec Odt by this doctor in 2024.
UCB, 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 Briviact as an associated drug or biological on 13595 records involving 4444 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Briviact 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 |
|---|---|---|---|---|---|
| PFIZER INC. | Unresolved — no canonical attribution shown | $3,845.29 | 65.7% | 16 | 2025 |
| TG Therapeutics, Inc. | Unresolved — no canonical attribution shown | $275.50 | 4.7% | 5 | 2025 |
| UCB, Inc. | Unresolved — no canonical attribution shown | $213.50 | 3.6% | 11 | 2025 |
| Neurocrine BioSciences, Inc. | Unresolved — no canonical attribution shown | $196.36 | 3.4% | 4 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $190.48 | 3.3% | 4 | 2025 |
| EMD Serono, Inc. | Unresolved — no canonical attribution shown | $157.19 | 2.7% | 2 | 2025 |
| Neurelis, Inc. |
Neurelis, Inc. exact · evidence 2025-02-20 |
$146.54 | 2.5% | 10 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $134.99 | 2.3% | 8 | 2025 |
| CSL Behring | Unresolved — no canonical attribution shown | $97.94 | 1.7% | 2 | 2025 |
| Genentech USA, Inc. | Unresolved — no canonical attribution shown | $89.56 | 1.5% | 2 | 2025 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | Unresolved — no canonical attribution shown | $64.19 | 1.1% | 3 | 2025 |
| Takeda Pharmaceuticals U.S.A., Inc. | Unresolved — no canonical attribution shown | $61.23 | 1.1% | 2 | 2025 |
| Axsome Therapeutics, Inc. | Unresolved — no canonical attribution shown | $56.53 | 1.0% | 3 | 2025 |
| JAZZ PHARMACEUTICALS INC. | Unresolved — no canonical attribution shown | $48.46 | 0.8% | 2 | 2025 |
| Merz Pharmaceuticals, LLC | Unresolved — no canonical attribution shown | $39.88 | 0.7% | 2 | 2025 |
| Amneal Pharmaceuticals LLC | Unresolved — no canonical attribution shown | $38.58 | 0.7% | 2 | 2025 |
| Otsuka America Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $33.25 | 0.6% | 1 | 2025 |
| Lundbeck LLC | Unresolved — no canonical attribution shown | $26.41 | 0.5% | 1 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $24.04 | 0.4% | 1 | 2025 |
| Aucta Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $20.97 | 0.4% | 1 | 2025 |
| Celgene Corporation | Unresolved — no canonical attribution shown | $20.72 | 0.3% | 1 | 2025 |
| Averitas Pharma Inc. | Unresolved — no canonical attribution shown | $20.51 | 0.3% | 1 | 2025 |
| Mallinckrodt Hospital Products Inc. | Unresolved — no canonical attribution shown | $18.79 | 0.3% | 1 | 2025 |
| VivaQuant Inc, dba Rhythm Express | Unresolved — no canonical attribution shown | $17.17 | 0.3% | 1 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $13.60 | 0.2% | 1 | 2025 |
What were the payments for?
Payment categories
| 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 | $3,050.00 | 2 |
| Food and Beverage | $2,126.68 | 84 |
| Consulting Fee | $675.00 | 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 |
|---|---|---|---|---|---|
| NURTEC ODT Normalized: nurtec odt |
Drug | PFIZER INC. | $3,845.29 | 16 | 2025 |
Source payment records
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| BRIUMVI Normalized: briumvi |
Drug | TG Therapeutics, Inc. | $275.50 | 5 | 2025 |
Source payment records
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| INGREZZA Normalized: ingrezza |
Drug | Neurocrine BioSciences, Inc. | $196.36 | 4 | 2025 |
Source payment records
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| WAINUA Normalized: wainua |
Drug | AstraZeneca Pharmaceuticals LP | $190.48 | 4 | 2025 |
Source payment records
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| VALTOCO Normalized: valtoco |
Drug | Neurelis, Inc. | $146.54 | 10 | 2025 |
Source payment records
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| Mavenclad Normalized: mavenclad |
Drug | EMD Serono, Inc. | $135.64 | 1 | 2025 |
Source payment records
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| Briviact Normalized: briviact |
Drug | UCB, Inc. | $123.92 | 7 | 2025 |
Source payment records
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| ZAVZPRET Normalized: zavzpret |
Drug | PFIZER INC. | $120.29 | 13 | 2025 |
Source payment records
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| Hizentra Normalized: hizentra |
Biological | CSL Behring | $97.94 | 2 | 2025 |
Source payment records
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| QULIPTA Normalized: qulipta |
Drug | ABBVIE INC. | $92.24 | 6 | 2025 |
Source payment records
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| LifeVest Normalized: lifevest |
Device | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $64.19 | 3 | 2025 |
Source payment records
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| HYQVIA Normalized: hyqvia |
Biological | Takeda Pharmaceuticals U.S.A., Inc. | $61.23 | 2 | 2025 |
Source payment records
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| Ocrevus Normalized: ocrevus |
Biological | Genentech USA, Inc. | $60.82 | 1 | 2025 |
Source payment records
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| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $56.62 | 3 | 2025 |
Source payment records
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| Symbravo Normalized: symbravo |
Drug | Axsome Therapeutics, Inc. | $56.53 | 3 | 2025 |
Source payment records
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| Rystiggo Normalized: rystiggo |
Drug | UCB, Inc. | $52.93 | 2 | 2025 |
Source payment records
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| BOTOX Normalized: botox |
Biological | ABBVIE INC. | $51.95 | 3 | 2025 |
Source payment records
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| EPIDIOLEX Normalized: epidiolex |
Drug | JAZZ PHARMACEUTICALS INC. | $48.46 | 2 | 2025 |
Source payment records
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| CREXONT Normalized: crexont |
Drug | Amneal Pharmaceuticals LLC | $38.58 | 2 | 2025 |
Source payment records
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| Nayzilam Normalized: nayzilam |
Drug | UCB, Inc. | $36.65 | 2 | 2025 |
Source payment records
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| NUEDEXTA Normalized: nuedexta |
Drug | Otsuka America Pharmaceutical, Inc. | $33.25 | 1 | 2025 |
Source payment records
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| Ocrevus Zunovo Normalized: ocrevus zunovo |
Biological | Genentech USA, Inc. | $28.74 | 1 | 2025 |
Source payment records
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| VYEPTI Normalized: vyepti |
Biological | Lundbeck LLC | $26.41 | 1 | 2025 |
Source payment records
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| CAPVAXIVE Normalized: capvaxive |
Biological | Merck Sharp & Dohme LLC | $24.04 | 1 | 2025 |
Source payment records
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| VERQUVO Normalized: verquvo |
Drug | Merck Sharp & Dohme LLC | $24.04 | 1 | 2025 |
Source payment records
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| Xeomin Normalized: xeomin |
Biological | Merz Pharmaceuticals, LLC | $22.64 | 1 | 2025 |
Source payment records
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| Motpoly XR Normalized: motpoly xr |
Drug | Aucta Pharmaceuticals, Inc. | $20.97 | 1 | 2025 |
Source payment records
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| ZEPOSIA Normalized: zeposia |
Drug | Celgene Corporation | $20.72 | 1 | 2025 |
Source payment records
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| QUTENZA Normalized: qutenza |
Drug | Averitas Pharma Inc. | $20.51 | 1 | 2025 |
Source payment records
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| ACTHAR Normalized: acthar |
Biological | Mallinckrodt Hospital Products Inc. | $18.79 | 1 | 2025 |
Source payment records
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| INBRIJA Normalized: inbrija |
Drug | Merz Pharmaceuticals, LLC | $17.24 | 1 | 2025 |
Source payment records
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| RHYTHM EXPRESS Normalized: rhythm express |
Device | VivaQuant Inc, dba Rhythm Express | $17.17 | 1 | 2025 |
Source payment records
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| KESIMPTA Normalized: kesimpta |
Drug | Novartis Pharmaceuticals Corporation | $13.60 | 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 |
|---|---|---|---|---|---|---|
| BOTOX botox |
2025 | Botox | 2024 | 23 | exact normalized | Medicare Part D |
| Briviact briviact |
2025 | Briviact | 2024 | 74 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| NUEDEXTA nuedexta |
2025 | Nuedexta | 2024 | 15 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| NURTEC ODT nurtec odt |
2025 | Nurtec Odt | 2024 | 94 | exact normalized | Medicare Part D |
| QULIPTA qulipta |
2025 | Qulipta | 2024 | 58 | exact normalized | Medicare Part D |
| UBRELVY ubrelvy |
2025 | Ubrelvy | 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
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 |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | BOTOX open payments reported associated product |
CMS Open Payments — General Payments 140321 supporting records · 30103 recipient NPIs · example record 1201352642 |
Botox · 2024 Exact normalized brand match · 1 Part D row |
23 | 11 |
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | QULIPTA open payments reported associated product |
CMS Open Payments — General Payments 298617 supporting records · 58957 recipient NPIs · example record 1201352530 |
Qulipta · 2024 Exact normalized brand match · 1 Part D row |
58 | 16 |
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | UBRELVY open payments reported associated product |
CMS Open Payments — General Payments 299803 supporting records · 61203 recipient NPIs · example record 1201352530 |
Ubrelvy · 2024 Exact normalized brand match · 1 Part D row |
28 | suppressed by CMS |
| Otsuka America Pharmaceutical, Inc. Exact reporting entity; no affiliate inference |
2025 | NUEDEXTA open payments reported associated product |
CMS Open Payments — General Payments 393 supporting records · 285 recipient NPIs · example record 1227268901 |
Nuedexta · 2024 Exact normalized brand match · 1 Part D row |
15 | suppressed by CMS |
| 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 |
94 | 25 |
| UCB, Inc. Exact reporting entity; no affiliate inference |
2025 | Briviact open payments reported associated product |
CMS Open Payments — General Payments 13595 supporting records · 4444 recipient NPIs · example record 1224348489 |
Briviact · 2024 Exact normalized brand match · 1 Part D row |
74 | 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 | 643 | 112 |
| Memantine Hcl | Memantine Hcl | 518 | 131 |
| Levetiracetam | Levetiracetam | 494 | 116 |
| Lamotrigine | Lamotrigine | 388 | 74 |
| Pregabalin | Pregabalin | 283 | 49 |
| Clonazepam | Clonazepam | 233 | 31 |
| Donepezil Hcl | Donepezil Hcl | 206 | 57 |
| Lacosamide | Lacosamide | 204 | 36 |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 200 | 51 |
| Topiramate | Topiramate | 186 | 50 |
| Duloxetine Hcl | Duloxetine Hcl | 167 | 42 |
| Zonisamide | Zonisamide | 165 | 30 |
| Primidone | Primidone | 139 | 37 |
| Aimovig Autoinjector | Erenumab-Aooe | 100 | 19 |
| Nurtec Odt | Rimegepant Sulfate | 94 | 25 |
| Fycompa | Perampanel | 93 | 13 |
| Carbamazepine | Carbamazepine | 87 | 14 |
| Clobazam | Clobazam | 85 | 11 |
| Briviact | Brivaracetam | 74 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 73 | 20 |
| Oxcarbazepine | Oxcarbazepine | 68 | 19 |
| Divalproex Sodium | Divalproex Sodium | 66 | 14 |
| Sertraline Hcl | Sertraline Hcl | 62 | 12 |
| Emgality Pen | Galcanezumab-Gnlm | 61 | 15 |
| Qulipta | Atogepant | 58 | 16 |
| Amitriptyline Hcl | Amitriptyline Hcl | 56 | 13 |
| Phenytoin Sodium Extended | Phenytoin Sodium Extended | 50 | 11 |
| Ropinirole Hcl | Ropinirole Hcl | 50 | suppressed |
| Diazepam | Diazepam | 49 | 15 |
| Rivastigmine | Rivastigmine Tartrate | 49 | 12 |
| Propranolol Hcl Er | Propranolol Hcl | 48 | suppressed |
| Baclofen | Baclofen | 46 | suppressed |
| Dilantin | Phenytoin Sodium Extended | 42 | suppressed |
| Divalproex Sodium Er | Divalproex Sodium | 36 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 33 | suppressed |
| Carbamazepine Er | Carbamazepine | 31 | suppressed |
| Prednisone | Prednisone | 29 | suppressed |
| Ubrelvy | Ubrogepant | 28 | suppressed |
| Nortriptyline Hcl | Nortriptyline Hcl | 27 | suppressed |
| Rizatriptan | Rizatriptan Benzoate | 26 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 24 | suppressed |
| Botox | Onabotulinumtoxina | 23 | 11 |
| Phenobarbital | Phenobarbital | 23 | suppressed |
| Xcopri | Cenobamate | 23 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 22 | suppressed |
| Verapamil Er | Verapamil Hcl | 21 | suppressed |
| Acetazolamide | Acetazolamide | 20 | suppressed |
| Aptiom | Eslicarbazepine Acetate | 20 | suppressed |
| Methocarbamol | Methocarbamol | 20 | suppressed |
| Neupro | Rotigotine | 20 | suppressed |
| Sumatriptan Succinate | Sumatriptan Succinate | 20 | suppressed |
| Entacapone | Entacapone | 19 | suppressed |
| Levetiracetam Er | Levetiracetam | 18 | suppressed |
| Mirtazapine | Mirtazapine | 17 | suppressed |
| Valproic Acid | Valproic Acid | 17 | suppressed |
| Amantadine | Amantadine Hcl | 16 | suppressed |
| Carbidopa-Levodopa Er | Carbidopa/Levodopa | 16 | suppressed |
| Lamictal | Lamotrigine | 16 | suppressed |
| Rivastigmine | Rivastigmine | 16 | suppressed |
| Vimpat | Lacosamide | 16 | suppressed |
| Atorvastatin Calcium | Atorvastatin Calcium | 15 | suppressed |
| Keppra | Levetiracetam | 15 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 15 | suppressed |
| Nuedexta | Dextromethorphan Hbr/Quinidine | 15 | suppressed |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 14 | suppressed |
| Zonisade | Zonisamide | 14 | suppressed |
| Dimethyl Fumarate | Dimethyl Fumarate | 13 | suppressed |
| Horizant | Gabapentin Enacarbil | 13 | suppressed |
| Memantine Hcl Er | Memantine Hcl | 13 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 13 | suppressed |
| Depakote Er | Divalproex Sodium | 12 | suppressed |
| Orphenadrine Citrate Er | Orphenadrine Citrate | 12 | suppressed |
| Oxtellar Xr | Oxcarbazepine | 12 | suppressed |
| Tegretol | Carbamazepine | 12 | suppressed |
| Teriflunomide | Teriflunomide | 12 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 12 | suppressed |
| Austedo | Deutetrabenazine | 11 | suppressed |
| Betaseron | Interferon Beta-1b | 11 | suppressed |
| Promethazine Hcl | Promethazine Hcl | 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 | $5,851.68 · 87 records | PFIZER INC. | ACTHAR, BOTOX, BRIUMVI, Briviact, CAPVAXIVE, CREXONT, EPIDIOLEX, HYQVIA, Hizentra, INBRIJA, INGREZZA, KESIMPTA, LifeVest, Mavenclad, Motpoly XR, NUEDEXTA, NURTEC ODT, Nayzilam, Ocrevus, Ocrevus Zunovo, QULIPTA, QUTENZA, RHYTHM EXPRESS, Rystiggo, Symbravo, UBRELVY, VALTOCO, VERQUVO, VYEPTI, WAINUA, Xeomin, ZAVZPRET, ZEPOSIA | 6 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Botox play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with ABBVIE 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