Healthcare provider profile · identity verified

Gerald L Oldham, MD

Internal Medicine · PEORIA, AZ · NPI 1235176207

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	554	168
Atorvastatin Calcium	Atorvastatin Calcium	543	167
Amlodipine Besylate	Amlodipine Besylate	488	151
Losartan Potassium	Losartan Potassium	378	119
Lisinopril	Lisinopril	346	108
Simvastatin	Simvastatin	336	98
Pantoprazole Sodium	Pantoprazole Sodium	320	102
Omeprazole	Omeprazole	296	90
Metformin Hcl	Metformin Hcl	206	63
Metoprolol Succinate	Metoprolol Succinate	203	63
Gabapentin	Gabapentin	201	66
Rosuvastatin Calcium	Rosuvastatin Calcium	197	63
Tamsulosin Hcl	Tamsulosin Hcl	191	61
Metoprolol Tartrate	Metoprolol Tartrate	181	56
Alprazolam	Alprazolam	163	41
Pravastatin Sodium	Pravastatin Sodium	161	44
Hydrochlorothiazide	Hydrochlorothiazide	159	51
Furosemide	Furosemide	144	57
Lorazepam	Lorazepam	139	24
Zolpidem Tartrate	Zolpidem Tartrate	135	36
Trazodone Hcl	Trazodone Hcl	131	43
Atenolol	Atenolol	129	37
Eliquis	Apixaban	124	42
Tramadol Hcl	Tramadol Hcl	122	28
Escitalopram Oxalate	Escitalopram Oxalate	117	33
Allopurinol	Allopurinol	110	36
Potassium Chloride	Potassium Chloride	108	41
Glipizide Er	Glipizide	101	30
Valsartan	Valsartan	96	31
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	88	16
Montelukast Sodium	Montelukast Sodium	85	29
Famotidine	Famotidine	84	28
Finasteride	Finasteride	82	25
Sertraline Hcl	Sertraline Hcl	82	26
Lovastatin	Lovastatin	71	20
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	70	24
Carvedilol	Carvedilol	63	21
Albuterol Sulfate Hfa	Albuterol Sulfate	61	29
Clopidogrel	Clopidogrel Bisulfate	60	19
Warfarin Sodium	Warfarin Sodium	60	21
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	57	16
Nifedipine Er	Nifedipine	55	16
Metformin Hcl Er	Metformin Hcl	49	18
Fenofibrate	Fenofibrate	48	12
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	48	16
Citalopram Hbr	Citalopram Hydrobromide	47	16
Triamcinolone Acetonide	Triamcinolone Acetonide	47	13
Oxybutynin Chloride	Oxybutynin Chloride	46	14
Mirtazapine	Mirtazapine	45	suppressed
Acyclovir	Acyclovir	44	15
Azithromycin	Azithromycin	42	39
Alendronate Sodium	Alendronate Sodium	41	11
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	41	12
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	41	suppressed
Memantine Hcl	Memantine Hcl	39	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	38	11
Tizanidine Hcl	Tizanidine Hcl	38	15
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	37	suppressed
Ezetimibe	Ezetimibe	37	suppressed
Clonazepam	Clonazepam	36	suppressed
Jardiance	Empagliflozin	36	suppressed
Meclizine Hcl	Meclizine Hcl	36	14
Oxybutynin Chloride Er	Oxybutynin Chloride	36	13
Venlafaxine Hcl Er	Venlafaxine Hcl	36	suppressed
Fluticasone Propionate	Fluticasone Propionate	35	20
Synthroid	Levothyroxine Sodium	35	13
Hydralazine Hcl	Hydralazine Hcl	33	13
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	33	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	32	11
Spironolactone	Spironolactone	31	suppressed
Glipizide	Glipizide	30	suppressed
Breo Ellipta	Fluticasone/Vilanterol	29	suppressed
Donepezil Hcl	Donepezil Hcl	29	suppressed
Duloxetine Hcl	Duloxetine Hcl	29	14
Hydrocortisone	Hydrocortisone	29	suppressed
Meloxicam	Meloxicam	29	14
Paroxetine Hcl	Paroxetine Hcl	29	suppressed
Cephalexin	Cephalexin	28	19
Diclofenac Sodium	Diclofenac Sodium	28	20
Latanoprost	Latanoprost	28	suppressed
Xarelto	Rivaroxaban	28	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	27	27
Hydroxyzine Hcl	Hydroxyzine Hcl	27	suppressed
Ibuprofen	Ibuprofen	27	14
Pregabalin	Pregabalin	27	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	26	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	25	20
Bumetanide	Bumetanide	25	suppressed
Celecoxib	Celecoxib	25	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	25	19
Baclofen	Baclofen	22	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	22	suppressed
Irbesartan	Irbesartan	21	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	21	suppressed
Valacyclovir	Valacyclovir Hcl	21	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	20	suppressed
Ipratropium Bromide	Ipratropium Bromide	20	suppressed
Bupropion Xl	Bupropion Hcl	19	suppressed
Enalapril Maleate	Enalapril Maleate	19	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	19	suppressed
Ondansetron Hcl	Ondansetron Hcl	19	suppressed
Sotalol	Sotalol Hcl	19	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	19	17
Benazepril Hcl	Benazepril Hcl	18	suppressed
Fenofibrate	Fenofibrate,micronized	18	suppressed
Methylprednisolone	Methylprednisolone	18	18
Clonidine Hcl	Clonidine Hcl	17	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	17	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	17	suppressed
Prednisone	Prednisone	17	suppressed
Propranolol Hcl	Propranolol Hcl	17	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	17	suppressed
Verapamil Er	Verapamil Hcl	17	suppressed
Fluconazole	Fluconazole	16	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Cefdinir	Cefdinir	15	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	15	14
Lamotrigine	Lamotrigine	15	suppressed
Naproxen	Naproxen	15	suppressed
Ramipril	Ramipril	15	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	15	suppressed
Eszopiclone	Eszopiclone	14	suppressed
Gemfibrozil	Gemfibrozil	14	suppressed
Levetiracetam	Levetiracetam	14	suppressed
Temazepam	Temazepam	14	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	14	suppressed
Digoxin	Digoxin	13	suppressed
Estradiol	Estradiol	13	suppressed
Methotrexate	Methotrexate Sodium	13	suppressed
Oxycodone Hcl	Oxycodone Hcl	13	suppressed
Propranolol Hcl Er	Propranolol Hcl	13	suppressed
Ropinirole Hcl	Ropinirole Hcl	13	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	12	suppressed
Farxiga	Dapagliflozin Propanediol	12	suppressed
Humalog	Insulin Lispro	12	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	12	suppressed
Anastrozole	Anastrozole	11	suppressed
Mupirocin	Mupirocin	11	suppressed
Ondansetron Odt	Ondansetron	11	suppressed
Ozempic	Semaglutide	11	suppressed
Primidone	Primidone	11	suppressed
Sucralfate	Sucralfate	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