Healthcare provider profile · identity verified

Steven Willis, D.O.

Family Practice · PHOENIX, AZ · NPI 1770961757

Profile state: partd only Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

We did not find matching Open Payments records for this doctor in 2025.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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	613	260
Losartan Potassium	Losartan Potassium	337	131
Amlodipine Besylate	Amlodipine Besylate	301	125
Levothyroxine Sodium	Levothyroxine Sodium	289	111
Rosuvastatin Calcium	Rosuvastatin Calcium	282	123
Lisinopril	Lisinopril	279	116
Metformin Hcl Er	Metformin Hcl	209	77
Simvastatin	Simvastatin	197	69
Tamsulosin Hcl	Tamsulosin Hcl	193	78
Gabapentin	Gabapentin	192	65
Trazodone Hcl	Trazodone Hcl	192	57
Alendronate Sodium	Alendronate Sodium	161	69
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	157	52
Atenolol	Atenolol	150	64
Omeprazole	Omeprazole	148	76
Meloxicam	Meloxicam	145	61
Albuterol Sulfate Hfa	Albuterol Sulfate	142	83
Pantoprazole Sodium	Pantoprazole Sodium	131	50
Terazosin Hcl	Terazosin Hcl	130	48
Metoprolol Tartrate	Metoprolol Tartrate	129	55
Furosemide	Furosemide	126	53
Potassium Chloride	Potassium Chloride	121	53
Glipizide	Glipizide	114	44
Hydrochlorothiazide	Hydrochlorothiazide	114	50
Allopurinol	Allopurinol	113	40
Pradaxa	Dabigatran Etexilate Mesylate	109	42
Metformin Hcl	Metformin Hcl	99	45
Triamcinolone Acetonide	Triamcinolone Acetonide	89	46
Azelastine Hcl	Azelastine Hcl	75	26
Sertraline Hcl	Sertraline Hcl	72	33
Prednisone	Prednisone	71	57
Finasteride	Finasteride	68	27
Ibuprofen	Ibuprofen	64	32
Lactulose	Lactulose	60	12
Tramadol Hcl	Tramadol Hcl	59	27
Clopidogrel	Clopidogrel Bisulfate	58	27
Ipratropium Bromide	Ipratropium Bromide	55	35
Jardiance	Empagliflozin	53	20
Fluoxetine Hcl	Fluoxetine Hcl	50	21
Mirtazapine	Mirtazapine	50	20
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	48	24
Ondansetron Odt	Ondansetron	47	20
Duloxetine Hcl	Duloxetine Hcl	46	19
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	44	16
Bupropion Xl	Bupropion Hcl	41	18
Azithromycin	Azithromycin	37	35
Spironolactone	Spironolactone	37	18
Pravastatin Sodium	Pravastatin Sodium	36	17
Tadalafil	Tadalafil	36	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	35	35
Clonazepam	Clonazepam	35	suppressed
Famotidine	Famotidine	34	15
Hydrocortisone	Hydrocortisone	34	19
Ozempic	Semaglutide	33	suppressed
Propranolol Hcl	Propranolol Hcl	33	13
Testosterone	Testosterone	33	suppressed
Alprazolam	Alprazolam	32	11
Mupirocin	Mupirocin	32	16
Estradiol	Estradiol	30	13
Colchicine	Colchicine	29	suppressed
Ezetimibe	Ezetimibe	29	15
Metronidazole	Metronidazole	29	14
Bisoprolol Fumarate	Bisoprolol Fumarate	28	12
Escitalopram Oxalate	Escitalopram Oxalate	28	suppressed
Montelukast Sodium	Montelukast Sodium	28	11
Naproxen	Naproxen	28	15
Buspirone Hcl	Buspirone Hcl	27	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	26	23
Lidocaine-Prilocaine	Lidocaine/Prilocaine	26	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	26	15
Doxycycline Monohydrate	Doxycycline Monohydrate	25	22
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	25	suppressed
Acyclovir	Acyclovir	24	13
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	24	suppressed
Valacyclovir	Valacyclovir Hcl	24	16
Donepezil Hcl	Donepezil Hcl	23	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	23	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	22	22
Spiriva Respimat	Tiotropium Bromide	22	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	22	suppressed
Celecoxib	Celecoxib	21	suppressed
Hydralazine Hcl	Hydralazine Hcl	21	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	21	suppressed
Alvesco	Ciclesonide	20	15
Zolpidem Tartrate	Zolpidem Tartrate	20	suppressed
Ciclopirox	Ciclopirox	19	suppressed
Ibandronate Sodium	Ibandronate Sodium	19	suppressed
Amoxicillin	Amoxicillin	18	suppressed
Carvedilol	Carvedilol	18	11
Citalopram Hbr	Citalopram Hydrobromide	18	suppressed
Fluocinonide	Fluocinonide	18	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	18	suppressed
Clobetasol Propionate	Clobetasol Propionate	17	suppressed
Lorazepam	Lorazepam	17	12
Tizanidine Hcl	Tizanidine Hcl	17	suppressed
Cefadroxil	Cefadroxil	16	14
Chlorthalidone	Chlorthalidone	16	suppressed
Clonidine Hcl	Clonidine Hcl	16	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	16	suppressed
Fenofibrate	Fenofibrate	16	suppressed
Lovastatin	Lovastatin	16	suppressed
Terbinafine Hcl	Terbinafine Hcl	16	11
Isosorbide Mononitrate Er	Isosorbide Mononitrate	15	suppressed
Oxycodone Hcl	Oxycodone Hcl	15	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	15	suppressed
Ssd	Silver Sulfadiazine	15	suppressed
Eliquis	Apixaban	14	suppressed
Epinephrine	Epinephrine	14	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	13	suppressed
Metoprolol Succinate	Metoprolol Succinate	13	suppressed
Tacrolimus	Tacrolimus	13	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	12	suppressed
Fluticasone Propionate	Fluticasone Propionate	12	suppressed
Naloxone Hcl	Naloxone Hcl	12	suppressed
Temazepam	Temazepam	12	suppressed
Benazepril Hcl	Benazepril Hcl	11	suppressed
Digoxin	Digoxin	11	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	11	suppressed
Nifedipine Er	Nifedipine	11	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	11	suppressed
Trospium Chloride	Trospium Chloride	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	—	—	—	—	—
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

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error