Healthcare provider profile · identity verified

Matthew Guest, M.D

Family Practice · ESCONDIDO, CA · NPI 1023038601

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	732	268
Amlodipine Besylate	Amlodipine Besylate	382	139
Losartan Potassium	Losartan Potassium	360	130
Levothyroxine Sodium	Levothyroxine Sodium	315	110
Omeprazole	Omeprazole	307	121
Metformin Hcl Er	Metformin Hcl	288	108
Rosuvastatin Calcium	Rosuvastatin Calcium	275	108
Lisinopril	Lisinopril	253	95
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	209	65
Gabapentin	Gabapentin	189	68
Jardiance	Empagliflozin	185	67
Potassium Chloride	Potassium Chloride	179	80
Trazodone Hcl	Trazodone Hcl	175	58
Atenolol	Atenolol	167	59
Tamsulosin Hcl	Tamsulosin Hcl	167	57
Metoprolol Tartrate	Metoprolol Tartrate	160	56
Simvastatin	Simvastatin	149	49
Hydrochlorothiazide	Hydrochlorothiazide	145	54
Furosemide	Furosemide	143	58
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	139	41
Metformin Hcl	Metformin Hcl	138	56
Albuterol Sulfate Hfa	Albuterol Sulfate	131	80
Ozempic	Semaglutide	131	26
Pradaxa	Dabigatran Etexilate Mesylate	115	39
Terazosin Hcl	Terazosin Hcl	104	39
Prednisone	Prednisone	94	80
Ibuprofen	Ibuprofen	91	34
Glipizide	Glipizide	87	30
Pantoprazole Sodium	Pantoprazole Sodium	85	36
Wixela Inhub	Fluticasone Propion/Salmeterol	84	48
Meloxicam	Meloxicam	82	48
Sertraline Hcl	Sertraline Hcl	81	26
Triamcinolone Acetonide	Triamcinolone Acetonide	80	51
Ezetimibe	Ezetimibe	75	19
Estradiol	Estradiol	70	35
Tramadol Hcl	Tramadol Hcl	65	23
Finasteride	Finasteride	64	24
Hydrocortisone	Hydrocortisone	62	36
Lorazepam	Lorazepam	62	18
Clopidogrel	Clopidogrel Bisulfate	61	25
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	61	25
Alendronate Sodium	Alendronate Sodium	60	26
Duloxetine Hcl	Duloxetine Hcl	60	21
Metoprolol Succinate	Metoprolol Succinate	54	19
Mupirocin	Mupirocin	53	36
Escitalopram Oxalate	Escitalopram Oxalate	48	20
Allopurinol	Allopurinol	47	17
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	46	21
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	45	21
Famotidine	Famotidine	42	17
Fluoxetine Hcl	Fluoxetine Hcl	38	15
Nabumetone	Nabumetone	38	12
Ondansetron Odt	Ondansetron	38	17
Alprazolam	Alprazolam	36	16
Azelastine Hcl	Azelastine Hcl	36	15
Citalopram Hbr	Citalopram Hydrobromide	36	11
Clonidine Hcl	Clonidine Hcl	36	11
Fluticasone Propionate	Fluticasone Propionate	35	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	34	11
Glipizide Er	Glipizide	33	15
Carvedilol	Carvedilol	32	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	32	30
Mirtazapine	Mirtazapine	32	16
Pregabalin	Pregabalin	32	suppressed
Xarelto	Rivaroxaban	32	suppressed
Humulin N	Insulin Nph Human Isophane	30	17
Arexvy	Rsvpref3 Antigen/As01e/Pf	29	28
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	29	25
Oxycodone Hcl	Oxycodone Hcl	29	suppressed
Spiriva Respimat	Tiotropium Bromide	29	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	28	suppressed
Propranolol Hcl	Propranolol Hcl	27	12
Acyclovir	Acyclovir	25	12
Isosorbide Mononitrate Er	Isosorbide Mononitrate	25	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	25	18
Tadalafil	Tadalafil	25	suppressed
Insulin Glargine-Yfgn	Insulin Glargine-Yfgn	24	11
Eliquis	Apixaban	23	suppressed
Humulin R	Insulin Regular, Human	23	12
Naproxen	Naproxen	23	15
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	22	suppressed
Veo Insulin Syringe	Syringe-Needle,insulin,0.5 Ml	22	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	21	21
Colchicine	Colchicine	21	suppressed
Terbinafine Hcl	Terbinafine Hcl	21	12
Topiramate	Topiramate	21	suppressed
Benazepril Hcl	Benazepril Hcl	20	suppressed
Fluconazole	Fluconazole	20	12
Hydralazine Hcl	Hydralazine Hcl	20	suppressed
Clonazepam	Clonazepam	19	suppressed
Humulin N Kwikpen	Insulin Nph Human Isophane	19	suppressed
Betamethasone Diprop Augmented	Betamethasone/Propylene Glyc	18	suppressed
Clobetasol Propionate	Clobetasol Propionate	18	suppressed
Risperidone	Risperidone	18	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	17	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	17	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	17	suppressed
Stiolto Respimat	Tiotropium Br/Olodaterol Hcl	17	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	17	suppressed
Alvesco	Ciclesonide	16	13
Cefpodoxime Proxetil	Cefpodoxime Proxetil	16	13
Cephalexin	Cephalexin	16	16
Clindamycin Hcl	Clindamycin Hcl	16	16
Donepezil Hcl	Donepezil Hcl	16	suppressed
Humulin 70/30 Kwikpen	Insulin Nph Hum/Reg Insulin Hm	16	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	16	suppressed
Memantine Hcl	Memantine Hcl	16	suppressed
Tizanidine Hcl	Tizanidine Hcl	16	suppressed
Fenofibrate	Fenofibrate	15	suppressed
Ketoconazole	Ketoconazole	15	suppressed
Lovastatin	Lovastatin	15	suppressed
Liraglutide	Liraglutide	14	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	13	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	13	12
Valacyclovir	Valacyclovir Hcl	13	suppressed
Veo Insulin Syringe	Syringe And Needle,insulin,1ml	13	suppressed
Amoxicillin	Amoxicillin	12	12
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	12	12
Chlorthalidone	Chlorthalidone	12	suppressed
Diazepam	Diazepam	12	suppressed
Divalproex Sodium	Divalproex Sodium	12	suppressed
Ofloxacin	Ofloxacin	12	11
Risedronate Sodium	Risedronate Sodium	12	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	11	suppressed
Emgality Pen	Galcanezumab-Gnlm	11	suppressed
Nitroglycerin	Nitroglycerin	11	11
Pioglitazone Hcl	Pioglitazone 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	—	—	—	—	—
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