Payment overview · 2025
General Payments
$104.28
2 reported records · 2 companies
Healthcare provider profile · identity verified
Thomas B Williamson, MD
Allopathic & Osteopathic Physicians|Internal Medicine · HURON, OH · NPI 1295774461
Verified facts
What the public records show
CMS Open Payments records show Thomas B Williamson, MD received $104.28 in general payments during 2025 across 2 reported records.
Bard Peripheral Vascular, Inc. accounted for 85.6% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 2 associated products.
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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 55 claims for Synthroid 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 |
|---|---|---|---|---|---|
| Bard Peripheral Vascular, Inc. | Unresolved — no canonical attribution shown | $89.27 | 85.6% | 1 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $15.01 | 14.4% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $104.28 | 2 |
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 |
|---|---|---|---|---|---|
| RotarexS 6 F x 135 cm Normalized: rotarexs 6 f x 135 cm |
Device | Bard Peripheral Vascular, Inc. | $89.27 | 1 | 2025 |
Source payment records
|
|||||
| UBRELVY Normalized: ubrelvy |
Drug | ABBVIE INC. | $15.01 | 1 | 2025 |
Source payment records
|
|||||
* 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 |
|---|---|---|---|---|---|---|
| ABBVIE INC. Exact reporting entity; no affiliate inference |
2025 | SYNTHROID open payments reported associated product |
CMS Open Payments — General Payments 10655 supporting records · 4881 recipient NPIs · example record 1201352636 |
Synthroid · 2024 Exact normalized brand match · 1 Part D row |
55 | 13 |
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 |
|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 298 | 80 |
| Amlodipine Besylate | Amlodipine Besylate | 294 | 77 |
| Levothyroxine Sodium | Levothyroxine Sodium | 291 | 71 |
| Metformin Hcl | Metformin Hcl | 267 | 68 |
| Omeprazole | Omeprazole | 264 | 64 |
| Lisinopril | Lisinopril | 254 | 67 |
| Hydrochlorothiazide | Hydrochlorothiazide | 243 | 66 |
| Losartan Potassium | Losartan Potassium | 238 | 66 |
| Simvastatin | Simvastatin | 229 | 51 |
| Metoprolol Succinate | Metoprolol Succinate | 176 | 43 |
| Zolpidem Tartrate | Zolpidem Tartrate | 153 | 23 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 143 | 41 |
| Metoprolol Tartrate | Metoprolol Tartrate | 127 | 28 |
| Allopurinol | Allopurinol | 122 | 26 |
| Jardiance | Empagliflozin | 117 | 22 |
| Lorazepam | Lorazepam | 115 | 30 |
| Warfarin Sodium | Warfarin Sodium | 112 | 24 |
| Tamsulosin Hcl | Tamsulosin Hcl | 105 | 32 |
| Donepezil Hcl | Donepezil Hcl | 95 | suppressed |
| Sertraline Hcl | Sertraline Hcl | 94 | 26 |
| Gabapentin | Gabapentin | 93 | 24 |
| Escitalopram Oxalate | Escitalopram Oxalate | 88 | 21 |
| Alprazolam | Alprazolam | 85 | 17 |
| Memantine Hcl | Memantine Hcl | 83 | suppressed |
| Furosemide | Furosemide | 81 | 20 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 77 | 15 |
| Citalopram Hbr | Citalopram Hydrobromide | 75 | 20 |
| Meloxicam | Meloxicam | 75 | 23 |
| Clopidogrel | Clopidogrel Bisulfate | 74 | 20 |
| Pantoprazole Sodium | Pantoprazole Sodium | 71 | 20 |
| Eliquis | Apixaban | 69 | 15 |
| Pioglitazone Hcl | Pioglitazone Hcl | 67 | 17 |
| Pravastatin Sodium | Pravastatin Sodium | 67 | 18 |
| Januvia | Sitagliptin Phosphate | 64 | 14 |
| Indapamide | Indapamide | 56 | 15 |
| Synthroid | Levothyroxine Sodium | 55 | 13 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 52 | 14 |
| Fluticasone Propionate | Fluticasone Propionate | 49 | 14 |
| Nitroglycerin | Nitroglycerin | 44 | 14 |
| Ozempic | Semaglutide | 44 | suppressed |
| Potassium Chloride | Potassium Chloride | 40 | suppressed |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 37 | 16 |
| Janumet | Sitagliptin Phos/Metformin Hcl | 34 | suppressed |
| Duloxetine Hcl | Duloxetine Hcl | 32 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 31 | 26 |
| Lovastatin | Lovastatin | 31 | suppressed |
| Metformin Hcl Er | Metformin Hcl | 31 | suppressed |
| Atenolol | Atenolol | 30 | suppressed |
| Clonazepam | Clonazepam | 30 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 30 | suppressed |
| Spironolactone | Spironolactone | 30 | suppressed |
| Ramipril | Ramipril | 28 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 27 | suppressed |
| Amoxicillin | Amoxicillin | 26 | 21 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 26 | suppressed |
| Hydralazine Hcl | Hydralazine Hcl | 25 | suppressed |
| Pregabalin | Pregabalin | 25 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 25 | suppressed |
| Ibuprofen | Ibuprofen | 24 | suppressed |
| Prednisone | Prednisone | 24 | suppressed |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 24 | suppressed |
| Fluoxetine Hcl | Fluoxetine Hcl | 23 | suppressed |
| Glipizide Er | Glipizide | 23 | suppressed |
| Telmisartan | Telmisartan | 22 | suppressed |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 21 | suppressed |
| Glipizide | Glipizide | 20 | suppressed |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 20 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 20 | suppressed |
| Glimepiride | Glimepiride | 19 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 19 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 19 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 17 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 17 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 17 | suppressed |
| Chlorthalidone | Chlorthalidone | 16 | suppressed |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 16 | suppressed |
| Esomeprazole Magnesium | Esomeprazole Magnesium | 15 | suppressed |
| Methylprednisolone | Methylprednisolone | 15 | 13 |
| Tramadol Hcl | Tramadol Hcl | 15 | suppressed |
| Valsartan-Hydrochlorothiazide | Valsartan/Hydrochlorothiazide | 15 | suppressed |
| Verapamil Er | Verapamil Hcl | 15 | suppressed |
| Cephalexin | Cephalexin | 14 | 13 |
| Diclofenac Sodium | Diclofenac Sodium | 14 | suppressed |
| Dutasteride | Dutasteride | 14 | suppressed |
| Valsartan | Valsartan | 14 | suppressed |
| Xarelto | Rivaroxaban | 14 | suppressed |
| Digoxin | Digoxin | 13 | suppressed |
| Folic Acid | Folic Acid | 13 | suppressed |
| Hydrocortisone | Hydrocortisone | 13 | suppressed |
| Montelukast Sodium | Montelukast Sodium | 13 | suppressed |
| Rizatriptan | Rizatriptan Benzoate | 13 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 12 | suppressed |
| Ezetimibe | Ezetimibe | 12 | suppressed |
| Tramadol Hcl-Acetaminophen | Tramadol Hcl/Acetaminophen | 12 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 12 | suppressed |
| Vitamin D2 | Ergocalciferol (Vitamin D2) | 12 | suppressed |
| Zonisamide | Zonisamide | 12 | suppressed |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 11 | suppressed |
| Carvedilol | Carvedilol | 11 | suppressed |
| Colchicine | Colchicine | 11 | suppressed |
| Diltiazem Hcl | Diltiazem Hcl | 11 | suppressed |
| Jantoven | Warfarin Sodium | 11 | suppressed |
| Levetiracetam | Levetiracetam | 11 | suppressed |
| Ropinirole Hcl | Ropinirole Hcl | 11 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 11 | suppressed |
| Venlafaxine Hcl | Venlafaxine 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 | $104.28 · 2 records | Bard Peripheral Vascular, Inc. | RotarexS 6 F x 135 cm, UBRELVY | 1 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- 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