Healthcare provider profile · identity verified

Susan Williams, MD

Geriatric Medicine · HOUSTON, TX · NPI 1174603427

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
Levothyroxine Sodium	Levothyroxine Sodium	392	108
Amlodipine Besylate	Amlodipine Besylate	331	103
Atorvastatin Calcium	Atorvastatin Calcium	313	91
Trazodone Hcl	Trazodone Hcl	219	76
Lisinopril	Lisinopril	196	53
Rosuvastatin Calcium	Rosuvastatin Calcium	193	61
Gabapentin	Gabapentin	171	51
Metoprolol Succinate	Metoprolol Succinate	169	51
Donepezil Hcl	Donepezil Hcl	167	50
Pantoprazole Sodium	Pantoprazole Sodium	167	49
Mirtazapine	Mirtazapine	166	53
Losartan Potassium	Losartan Potassium	151	56
Hydrochlorothiazide	Hydrochlorothiazide	143	46
Metformin Hcl	Metformin Hcl	127	39
Myrbetriq	Mirabegron	123	28
Escitalopram Oxalate	Escitalopram Oxalate	122	35
Memantine Hcl	Memantine Hcl	116	35
Furosemide	Furosemide	104	40
Pravastatin Sodium	Pravastatin Sodium	91	24
Simvastatin	Simvastatin	87	28
Quetiapine Fumarate	Quetiapine Fumarate	83	19
Alendronate Sodium	Alendronate Sodium	82	24
Tamsulosin Hcl	Tamsulosin Hcl	81	27
Sertraline Hcl	Sertraline Hcl	78	25
Carvedilol	Carvedilol	76	23
Fluticasone Propionate	Fluticasone Propionate	75	26
Tramadol Hcl	Tramadol Hcl	74	23
Omeprazole	Omeprazole	71	30
Meloxicam	Meloxicam	69	24
Metformin Hcl Er	Metformin Hcl	68	20
Metoprolol Tartrate	Metoprolol Tartrate	64	19
Buspirone Hcl	Buspirone Hcl	63	19
Venlafaxine Hcl Er	Venlafaxine Hcl	63	15
Azithromycin	Azithromycin	60	47
Eliquis	Apixaban	57	19
Clopidogrel	Clopidogrel Bisulfate	55	17
Hydralazine Hcl	Hydralazine Hcl	53	17
Synthroid	Levothyroxine Sodium	53	17
Zolpidem Tartrate	Zolpidem Tartrate	53	13
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	52	17
Pregabalin	Pregabalin	50	12
Duloxetine Hcl	Duloxetine Hcl	49	14
Albuterol Sulfate Hfa	Albuterol Sulfate	48	17
Celecoxib	Celecoxib	45	15
Fluoxetine Hcl	Fluoxetine Hcl	44	suppressed
Montelukast Sodium	Montelukast Sodium	44	14
Mounjaro	Tirzepatide	44	suppressed
Prednisone	Prednisone	43	27
Ozempic	Semaglutide	42	12
Ciprofloxacin Hcl	Ciprofloxacin Hcl	41	37
Allopurinol	Allopurinol	40	14
Famotidine	Famotidine	40	13
Cefuroxime	Cefuroxime Axetil	38	32
Potassium Chloride	Potassium Chloride	37	13
Doxycycline Hyclate	Doxycycline Hyclate	36	30
Memantine Hcl Er	Memantine Hcl	35	suppressed
Spironolactone	Spironolactone	34	12
Valacyclovir	Valacyclovir Hcl	33	14
Lorazepam	Lorazepam	32	12
Triamcinolone Acetonide	Triamcinolone Acetonide	32	20
Atenolol	Atenolol	31	suppressed
Divalproex Sodium	Divalproex Sodium	31	suppressed
Linzess	Linaclotide	31	suppressed
Valsartan	Valsartan	31	suppressed
Alprazolam	Alprazolam	30	suppressed
Fluconazole	Fluconazole	30	12
Olmesartan Medoxomil	Olmesartan Medoxomil	30	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	30	30
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	29	28
Estradiol	Estradiol	29	suppressed
Ezetimibe	Ezetimibe	29	suppressed
Levetiracetam	Levetiracetam	29	suppressed
Ipratropium Bromide	Ipratropium Bromide	28	12
Midodrine Hcl	Midodrine Hcl	28	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	28	suppressed
Tizanidine Hcl	Tizanidine Hcl	28	suppressed
Glipizide	Glipizide	26	suppressed
Nifedipine Er	Nifedipine	25	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	24	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	24	suppressed
Trulicity	Dulaglutide	24	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	23	suppressed
Methylprednisolone	Methylprednisolone	23	20
Finasteride	Finasteride	22	suppressed
Bupropion Xl	Bupropion Hcl	21	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	21	16
Rivastigmine	Rivastigmine Tartrate	21	suppressed
Nitrofurantoin	Nitrofurantoin Macrocrystal	20	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	20	suppressed
Citalopram Hbr	Citalopram Hydrobromide	19	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	19	suppressed
Irbesartan	Irbesartan	19	suppressed
Nystatin	Nystatin	19	suppressed
Ropinirole Hcl	Ropinirole Hcl	19	suppressed
Azelastine Hcl	Azelastine Hcl	18	11
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Glipizide Er	Glipizide	17	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	17	suppressed
Paroxetine Hcl	Paroxetine Hcl	17	suppressed
Rivastigmine	Rivastigmine	17	suppressed
Clobetasol Propionate	Clobetasol Propionate	16	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	16	suppressed
Entresto	Sacubitril/Valsartan	16	suppressed
Jardiance	Empagliflozin	16	suppressed
Ketoconazole	Ketoconazole	16	suppressed
Lidocaine	Lidocaine	16	suppressed
Sucralfate	Sucralfate	16	suppressed
Hydrocortisone	Hydrocortisone	15	suppressed
Olanzapine	Olanzapine	15	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	15	suppressed
Azelastine-Fluticasone	Azelastine/Fluticasone	14	suppressed
Bupropion Hcl	Bupropion Hcl	14	suppressed
Glimepiride	Glimepiride	14	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Temazepam	Temazepam	14	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	14	suppressed
Doxepin Hcl	Doxepin Hcl	13	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	13	suppressed
Levofloxacin	Levofloxacin	13	13
Acyclovir	Acyclovir	12	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	12	suppressed
Chlorthalidone	Chlorthalidone	12	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	12	suppressed
Digoxin	Digoxin	12	suppressed
Farxiga	Dapagliflozin Propanediol	12	suppressed
Fentanyl	Fentanyl	12	suppressed
Lactulose	Lactulose	12	suppressed
Latanoprost	Latanoprost	12	suppressed
Restasis	Cyclosporine	12	suppressed
Bumetanide	Bumetanide	11	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	11	suppressed
Mirabegron Er	Mirabegron	11	suppressed
Ondansetron Odt	Ondansetron	11	suppressed
Teriparatide	Teriparatide	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