Payment overview · 2025
General Payments
4 reported records · 3 companies
Healthcare provider profile · identity verified
Allopathic & Osteopathic Physicians|Family Medicine · ANDERSON, SC · NPI 1811284649
Verified facts
CMS Open Payments records show David T Shook, MD received $95.60 in general payments during 2025 across 4 reported records.
Otsuka America Pharmaceutical, Inc. accounted for 45.9% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 3 associated products.
These records do not establish that a payment influenced prescribing or medical care.
Payment overview · 2025
4 reported records · 3 companies
Separate record types
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?
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| Otsuka America Pharmaceutical, Inc. | Unresolved — no canonical attribution shown | $43.91 | 45.9% | 2 | 2025 |
| Organogenesis Inc. | Unresolved — no canonical attribution shown | $33.59 | 35.1% | 1 | 2025 |
| Phathom Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $18.10 | 18.9% | 1 | 2025 |
What were the payments for?
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $95.60 | 4 |
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
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| REXULTI Normalized: rexulti |
Drug | Otsuka America Pharmaceutical, Inc. | $43.91 | 2 | 2025 |
Source payment records
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| AFFINITY Normalized: affinity |
Medical Supply | Organogenesis Inc. | $33.59 | 1 | 2025 |
Source payment records
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| VOQUEZNA Normalized: voquezna |
Drug | Phathom Pharmaceuticals, Inc. | $18.10 | 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.
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
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.
No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.
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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Gabapentin | Gabapentin | 231 | 42 |
| Eliquis | Apixaban | 207 | 27 |
| Atorvastatin Calcium | Atorvastatin Calcium | 198 | 57 |
| Furosemide | Furosemide | 185 | 46 |
| Amlodipine Besylate | Amlodipine Besylate | 171 | 48 |
| Levothyroxine Sodium | Levothyroxine Sodium | 134 | 33 |
| Carvedilol | Carvedilol | 128 | 24 |
| Omeprazole | Omeprazole | 128 | 43 |
| Citalopram Hbr | Citalopram Hydrobromide | 121 | 27 |
| Tramadol Hcl | Tramadol Hcl | 107 | 43 |
| Hydrochlorothiazide | Hydrochlorothiazide | 98 | 21 |
| Tamsulosin Hcl | Tamsulosin Hcl | 95 | 26 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 93 | 30 |
| Metformin Hcl | Metformin Hcl | 83 | 15 |
| Famotidine | Famotidine | 75 | 28 |
| Lisinopril | Lisinopril | 75 | 23 |
| Escitalopram Oxalate | Escitalopram Oxalate | 73 | 12 |
| Oxycodone Hcl | Oxycodone Hcl | 71 | 25 |
| Buspirone Hcl | Buspirone Hcl | 67 | suppressed |
| Xarelto | Rivaroxaban | 64 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 63 | suppressed |
| Januvia | Sitagliptin Phosphate | 62 | suppressed |
| Bumetanide | Bumetanide | 60 | suppressed |
| Lorazepam | Lorazepam | 60 | 23 |
| Metoprolol Succinate | Metoprolol Succinate | 60 | 25 |
| Losartan Potassium | Losartan Potassium | 57 | 20 |
| Quetiapine Fumarate | Quetiapine Fumarate | 57 | 13 |
| Trazodone Hcl | Trazodone Hcl | 55 | 17 |
| Finasteride | Finasteride | 46 | suppressed |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 45 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 43 | 28 |
| Fluconazole | Fluconazole | 43 | 13 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 43 | 24 |
| Metformin Hcl Er | Metformin Hcl | 42 | suppressed |
| Oxybutynin Chloride | Oxybutynin Chloride | 42 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 41 | 11 |
| Divalproex Sodium | Divalproex Sodium | 41 | suppressed |
| Fluticasone Propionate | Fluticasone Propionate | 41 | 14 |
| Mirtazapine | Mirtazapine | 41 | suppressed |
| Myrbetriq | Mirabegron | 41 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 40 | 14 |
| Pantoprazole Sodium | Pantoprazole Sodium | 40 | suppressed |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 39 | 13 |
| Clonazepam | Clonazepam | 37 | suppressed |
| Baclofen | Baclofen | 33 | suppressed |
| Carbidopa-Levodopa | Carbidopa/Levodopa | 32 | suppressed |
| Memantine Hcl | Memantine Hcl | 32 | suppressed |
| Simvastatin | Simvastatin | 32 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 31 | suppressed |
| Prednisone | Prednisone | 31 | 20 |
| Allopurinol | Allopurinol | 30 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 30 | suppressed |
| Ibuprofen | Ibuprofen | 29 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 27 | suppressed |
| Celecoxib | Celecoxib | 26 | suppressed |
| Nifedipine Er | Nifedipine | 26 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 25 | suppressed |
| Nystatin | Nystatin | 25 | suppressed |
| Pravastatin Sodium | Pravastatin Sodium | 24 | suppressed |
| Jardiance | Empagliflozin | 23 | suppressed |
| Doxycycline Hyclate | Doxycycline Hyclate | 22 | 12 |
| Linzess | Linaclotide | 22 | suppressed |
| Potassium Chloride | Potassium Chloride | 22 | 11 |
| Azithromycin | Azithromycin | 21 | 18 |
| Pregabalin | Pregabalin | 21 | suppressed |
| Risperidone | Risperidone | 21 | suppressed |
| Spironolactone | Spironolactone | 20 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 19 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 19 | suppressed |
| Lacosamide | Lacosamide | 19 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 18 | suppressed |
| Ezetimibe | Ezetimibe | 18 | suppressed |
| Humalog Kwikpen U-100 | Insulin Lispro | 18 | suppressed |
| Latanoprost | Latanoprost | 17 | suppressed |
| Ondansetron Odt | Ondansetron | 17 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 16 | suppressed |
| Bupropion Xl | Bupropion Hcl | 16 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 15 | suppressed |
| Cephalexin | Cephalexin | 15 | 11 |
| Chlorthalidone | Chlorthalidone | 15 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 15 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 15 | suppressed |
| Tradjenta | Linagliptin | 15 | suppressed |
| Alprazolam | Alprazolam | 14 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 13 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 13 | suppressed |
| Ceftriaxone | Ceftriaxone Sodium | 13 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 13 | suppressed |
| Hydroxychloroquine Sulfate | Hydroxychloroquine Sulfate | 13 | suppressed |
| Oxybutynin Chloride Er | Oxybutynin Chloride | 13 | suppressed |
| Carbidopa-Levodopa Er | Carbidopa/Levodopa | 12 | suppressed |
| Colchicine | Colchicine | 12 | suppressed |
| Dextroamphetamine-Amphetamine | Dextroamphetamine/Amphetamine | 12 | suppressed |
| Janumet | Sitagliptin Phos/Metformin Hcl | 12 | suppressed |
| Metolazone | Metolazone | 12 | suppressed |
| Mounjaro | Tirzepatide | 12 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 12 | suppressed |
| Tramadol Hcl Er | Tramadol Hcl | 12 | suppressed |
| Travoprost | Travoprost | 12 | suppressed |
| Anastrozole | Anastrozole | 11 | suppressed |
| Metoclopramide Hcl | Metoclopramide Hcl | 11 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 11 | suppressed |
| Ondansetron Hcl | Ondansetron Hcl | 11 | suppressed |
| Ozempic | Semaglutide | 11 | suppressed |
Timeline
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 | $95.60 · 4 records | Otsuka America Pharmaceutical, Inc. | AFFINITY, REXULTI, VOQUEZNA | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
| 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