Payment overview · 2025
General Payments
$2,242.12
3 reported records · 2 companies
Healthcare provider profile · identity verified
Zachary D Stiles
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical · SPOKANE, WA · NPI 1407374747
Verified facts
What the public records show
CMS Open Payments records show Zachary D Stiles received $2,242.12 in general payments during 2025 across 3 reported records.
INTUITIVE SURGICAL, INC. accounted for 98.7% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 2 associated products.
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 |
|---|---|---|---|---|---|
| INTUITIVE SURGICAL, INC. | Unresolved — no canonical attribution shown | $2,213.76 | 98.7% | 2 | 2025 |
| Dexcom, Inc. | Unresolved — no canonical attribution shown | $28.36 | 1.3% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Education | $2,000.00 | 1 |
| Travel and Lodging | $213.76 | 1 |
| Food and Beverage | $28.36 | 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 |
|---|---|---|---|---|---|
| Da Vinci Surgical System Normalized: da vinci surgical system |
Device | INTUITIVE SURGICAL, INC. | $2,213.76 | 2 | 2025 |
Source payment records
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| Dexcom G6 Transmitter Normalized: dexcom g6 transmitter |
Medical Supply | Dexcom, Inc. | $28.36 | 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.
None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.
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 |
|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 510 | 100 |
| Atorvastatin Calcium | Atorvastatin Calcium | 346 | 97 |
| Lisinopril | Lisinopril | 293 | 77 |
| Levothyroxine Sodium | Levothyroxine Sodium | 265 | 63 |
| Omeprazole | Omeprazole | 181 | 55 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 178 | 57 |
| Losartan Potassium | Losartan Potassium | 163 | 51 |
| Oxycodone Hcl | Oxycodone Hcl | 146 | 26 |
| Ozempic | Semaglutide | 140 | 34 |
| Tramadol Hcl | Tramadol Hcl | 130 | 23 |
| Tamsulosin Hcl | Tamsulosin Hcl | 127 | 41 |
| Metoprolol Succinate | Metoprolol Succinate | 122 | 36 |
| Gabapentin | Gabapentin | 105 | 39 |
| Trazodone Hcl | Trazodone Hcl | 105 | 31 |
| Furosemide | Furosemide | 104 | 33 |
| Potassium Chloride | Potassium Chloride | 88 | 26 |
| Metformin Hcl Er | Metformin Hcl | 79 | 23 |
| Pravastatin Sodium | Pravastatin Sodium | 78 | 20 |
| Alprazolam | Alprazolam | 77 | 23 |
| Prednisone | Prednisone | 76 | 53 |
| Duloxetine Hcl | Duloxetine Hcl | 73 | 20 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 72 | 27 |
| Amlodipine Besylate | Amlodipine Besylate | 71 | 26 |
| Citalopram Hbr | Citalopram Hydrobromide | 70 | 19 |
| Hydrochlorothiazide | Hydrochlorothiazide | 70 | 22 |
| Allopurinol | Allopurinol | 66 | 21 |
| Metformin Hcl | Metformin Hcl | 65 | 19 |
| Montelukast Sodium | Montelukast Sodium | 64 | 17 |
| Pregabalin | Pregabalin | 62 | 22 |
| Pantoprazole Sodium | Pantoprazole Sodium | 60 | 22 |
| Simvastatin | Simvastatin | 60 | 21 |
| Hydroxyzine Hcl | Hydroxyzine Hcl | 59 | 23 |
| Fluoxetine Hcl | Fluoxetine Hcl | 58 | 14 |
| Spironolactone | Spironolactone | 56 | 12 |
| Celecoxib | Celecoxib | 54 | 15 |
| Alendronate Sodium | Alendronate Sodium | 53 | 17 |
| Fluticasone Propionate | Fluticasone Propionate | 51 | 16 |
| Famotidine | Famotidine | 50 | 18 |
| Morphine Sulfate Er | Morphine Sulfate | 50 | suppressed |
| Tizanidine Hcl | Tizanidine Hcl | 50 | 17 |
| Xarelto | Rivaroxaban | 48 | suppressed |
| Ezetimibe | Ezetimibe | 47 | 17 |
| Methocarbamol | Methocarbamol | 47 | 19 |
| Jardiance | Empagliflozin | 46 | 11 |
| Azithromycin | Azithromycin | 44 | 32 |
| Bupropion Xl | Bupropion Hcl | 44 | suppressed |
| Dextroamphetamine-Amphetamine | Dextroamphetamine/Amphetamine | 44 | suppressed |
| Glipizide | Glipizide | 43 | suppressed |
| Buspirone Hcl | Buspirone Hcl | 41 | 11 |
| Butalbital-Acetaminophen-Caffe | Butalb/Acetaminophen/Caffeine | 40 | suppressed |
| Clopidogrel | Clopidogrel Bisulfate | 40 | 13 |
| Mirtazapine | Mirtazapine | 40 | 11 |
| Meloxicam | Meloxicam | 39 | 15 |
| Symbicort | Budesonide/Formoterol Fumarate | 39 | suppressed |
| Atenolol | Atenolol | 38 | suppressed |
| Terbinafine Hcl | Terbinafine Hcl | 38 | 16 |
| Fluconazole | Fluconazole | 37 | 13 |
| Olanzapine | Olanzapine | 36 | suppressed |
| Propranolol Hcl | Propranolol Hcl | 36 | 14 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 36 | 29 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 35 | 13 |
| Baclofen | Baclofen | 34 | suppressed |
| Lorazepam | Lorazepam | 34 | 15 |
| Carvedilol | Carvedilol | 33 | 13 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 33 | suppressed |
| Zolpidem Tartrate | Zolpidem Tartrate | 32 | 12 |
| Lidocaine | Lidocaine | 31 | suppressed |
| Ibuprofen | Ibuprofen | 30 | suppressed |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 30 | suppressed |
| Doxycycline Hyclate | Doxycycline Hyclate | 29 | 18 |
| Finasteride | Finasteride | 29 | suppressed |
| Ondansetron Odt | Ondansetron | 29 | 18 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 28 | 26 |
| Eliquis | Apixaban | 27 | 11 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 26 | suppressed |
| Nitroglycerin | Nitroglycerin | 26 | 15 |
| Sertraline Hcl | Sertraline Hcl | 26 | suppressed |
| Xtampza Er | Oxycodone Myristate | 26 | suppressed |
| Doxazosin Mesylate | Doxazosin Mesylate | 24 | suppressed |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 24 | suppressed |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 24 | 18 |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 24 | suppressed |
| Quetiapine Fumarate | Quetiapine Fumarate | 24 | suppressed |
| Escitalopram Oxalate | Escitalopram Oxalate | 23 | suppressed |
| Synthroid | Levothyroxine Sodium | 23 | suppressed |
| Breztri Aerosphere | Budesonide/Glycopyr/Formoterol | 22 | suppressed |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 22 | suppressed |
| Valproic Acid | Valproic Acid (As Sodium Salt) | 22 | suppressed |
| Glimepiride | Glimepiride | 21 | suppressed |
| Glipizide Er | Glipizide | 21 | suppressed |
| Testosterone | Testosterone | 21 | suppressed |
| Trelegy Ellipta | Fluticasone/Umeclidin/Vilanter | 21 | suppressed |
| Ventolin Hfa | Albuterol Sulfate | 21 | suppressed |
| Amoxicillin | Amoxicillin | 20 | 19 |
| Clonazepam | Clonazepam | 20 | suppressed |
| Donepezil Hcl | Donepezil Hcl | 20 | suppressed |
| Estradiol | Estradiol | 19 | suppressed |
| Lamotrigine | Lamotrigine | 19 | suppressed |
| Diclofenac Sodium | Diclofenac Sodium | 18 | suppressed |
| Enalapril Maleate | Enalapril Maleate | 18 | suppressed |
| Farxiga | Dapagliflozin Propanediol | 18 | suppressed |
| Fluticasone-Salmeterol | Fluticasone Propion/Salmeterol | 18 | suppressed |
| Loperamide | Loperamide Hcl | 18 | suppressed |
| Memantine Hcl | Memantine Hcl | 17 | suppressed |
| Torsemide | Torsemide | 17 | suppressed |
| Diazepam | Diazepam | 16 | suppressed |
| Hydromorphone Hcl | Hydromorphone Hcl | 16 | suppressed |
| Paroxetine Hcl | Paroxetine Hcl | 16 | suppressed |
| Varenicline Tartrate | Varenicline Tartrate | 16 | suppressed |
| Bupropion Hcl Sr | Bupropion Hcl | 15 | suppressed |
| Diltiazem 24hr Er | Diltiazem Hcl | 15 | suppressed |
| Lansoprazole | Lansoprazole | 15 | suppressed |
| Oxycontin | Oxycodone Hcl | 15 | suppressed |
| Amitriptyline Hcl | Amitriptyline Hcl | 14 | suppressed |
| Benztropine Mesylate | Benztropine Mesylate | 14 | suppressed |
| Carbamazepine Er | Carbamazepine | 14 | suppressed |
| Dicyclomine Hcl | Dicyclomine Hcl | 14 | suppressed |
| Enulose | Lactulose | 14 | suppressed |
| Linzess | Linaclotide | 14 | suppressed |
| Nystatin | Nystatin | 14 | suppressed |
| Sucralfate | Sucralfate | 14 | suppressed |
| Toujeo Max Solostar | Insulin Glargine,hum.Rec.Anlog | 14 | suppressed |
| Venlafaxine Hcl | Venlafaxine Hcl | 14 | suppressed |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 13 | 13 |
| Insulin Lispro Kwikpen U-100 | Insulin Lispro | 13 | suppressed |
| Meclizine Hcl | Meclizine Hcl | 13 | suppressed |
| Metoclopramide Hcl | Metoclopramide Hcl | 13 | suppressed |
| Metoprolol Tartrate | Metoprolol Tartrate | 13 | suppressed |
| Prazosin Hcl | Prazosin Hcl | 13 | suppressed |
| Rexulti | Brexpiprazole | 13 | suppressed |
| Synjardy Xr | Empagliflozin/Metformin Hcl | 13 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 13 | suppressed |
| Acyclovir | Acyclovir | 12 | suppressed |
| Armour Thyroid | Thyroid,pork | 12 | suppressed |
| Cephalexin | Cephalexin | 12 | 11 |
| Hysingla Er | Hydrocodone Bitartrate | 12 | suppressed |
| Lactulose | Lactulose | 12 | suppressed |
| Methadone Hcl | Methadone Hcl | 12 | suppressed |
| Mupirocin | Mupirocin | 12 | 11 |
| Naproxen Sodium | Naproxen Sodium | 12 | suppressed |
| Pioglitazone Hcl | Pioglitazone Hcl | 12 | suppressed |
| Progesterone | Progesterone, Micronized | 12 | suppressed |
| Ramelteon | Ramelteon | 12 | suppressed |
| Stiolto Respimat | Tiotropium Br/Olodaterol Hcl | 12 | suppressed |
| Toujeo Solostar | Insulin Glargine,hum.Rec.Anlog | 12 | suppressed |
| Calcitonin-Salmon | Calcitonin,salmon,synthetic | 11 | suppressed |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 11 | suppressed |
| Doxepin Hcl | Doxepin Hcl | 11 | suppressed |
| Gemfibrozil | Gemfibrozil | 11 | suppressed |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 11 | suppressed |
| Methylphenidate Hcl | Methylphenidate Hcl | 11 | suppressed |
| Methylprednisolone | Methylprednisolone | 11 | suppressed |
| Morphine Sulfate | Morphine Sulfate | 11 | suppressed |
| Nortriptyline Hcl | Nortriptyline Hcl | 11 | suppressed |
| Nyamyc | Nystatin | 11 | suppressed |
| Pramipexole Dihydrochloride | Pramipexole Di-Hcl | 11 | suppressed |
| Tramadol Hcl-Acetaminophen | Tramadol Hcl/Acetaminophen | 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 | $2,242.12 · 3 records | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System, Dexcom G6 Transmitter | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- 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