Healthcare provider profile · identity verified

Mark B Davenport, M.D.

Family Practice · FULLERTON, CA · NPI 1679569636

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	526	169
Levothyroxine Sodium	Levothyroxine Sodium	403	112
Lisinopril	Lisinopril	376	111
Amlodipine Besylate	Amlodipine Besylate	365	113
Simvastatin	Simvastatin	270	82
Metformin Hcl	Metformin Hcl	241	81
Losartan Potassium	Losartan Potassium	235	81
Pantoprazole Sodium	Pantoprazole Sodium	207	60
Tamsulosin Hcl	Tamsulosin Hcl	206	78
Rosuvastatin Calcium	Rosuvastatin Calcium	200	67
Omeprazole	Omeprazole	191	61
Hydrochlorothiazide	Hydrochlorothiazide	190	60
Gabapentin	Gabapentin	181	57
Atenolol	Atenolol	154	44
Metoprolol Succinate	Metoprolol Succinate	142	52
Pravastatin Sodium	Pravastatin Sodium	141	40
Zolpidem Tartrate	Zolpidem Tartrate	140	29
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	134	44
Eliquis	Apixaban	133	38
Montelukast Sodium	Montelukast Sodium	123	35
Trazodone Hcl	Trazodone Hcl	123	33
Furosemide	Furosemide	122	43
Lorazepam	Lorazepam	117	30
Escitalopram Oxalate	Escitalopram Oxalate	116	41
Albuterol Sulfate Hfa	Albuterol Sulfate	101	32
Allopurinol	Allopurinol	101	34
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	100	27
Ezetimibe	Ezetimibe	92	28
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	87	31
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	87	31
Metoprolol Tartrate	Metoprolol Tartrate	86	31
Alendronate Sodium	Alendronate Sodium	85	23
Fluticasone Propionate	Fluticasone Propionate	84	28
Alprazolam	Alprazolam	80	19
Tramadol Hcl	Tramadol Hcl	80	32
Methylprednisolone	Methylprednisolone	68	63
Meloxicam	Meloxicam	67	26
Carvedilol	Carvedilol	65	25
Lovastatin	Lovastatin	65	17
Metformin Hcl Er	Metformin Hcl	65	16
Fenofibrate	Fenofibrate	61	16
Finasteride	Finasteride	59	22
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	57	17
Potassium Chloride	Potassium Chloride	57	18
Azithromycin	Azithromycin	51	41
Pioglitazone Hcl	Pioglitazone Hcl	51	14
Hydrocortisone	Hydrocortisone	50	21
Sildenafil Citrate	Sildenafil Citrate	50	13
Ibandronate Sodium	Ibandronate Sodium	49	18
Januvia	Sitagliptin Phosphate	49	14
Buspirone Hcl	Buspirone Hcl	48	suppressed
Temazepam	Temazepam	47	suppressed
Benazepril Hcl	Benazepril Hcl	44	14
Jardiance	Empagliflozin	44	14
Duloxetine Hcl	Duloxetine Hcl	42	12
Sertraline Hcl	Sertraline Hcl	42	suppressed
Citalopram Hbr	Citalopram Hydrobromide	41	12
Clopidogrel	Clopidogrel Bisulfate	41	14
Ciprofloxacin Hcl	Ciprofloxacin Hcl	40	30
Fluocinonide	Fluocinonide	40	25
Glipizide	Glipizide	37	14
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	36	31
Estradiol	Estradiol	35	11
Ibuprofen	Ibuprofen	35	19
Bupropion Xl	Bupropion Hcl	34	suppressed
Donepezil Hcl	Donepezil Hcl	34	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	33	11
Fenofibrate	Fenofibrate Nanocrystallized	33	12
Meclizine Hcl	Meclizine Hcl	33	15
Pregabalin	Pregabalin	32	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	31	14
Memantine Hcl	Memantine Hcl	31	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	30	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	30	suppressed
Baclofen	Baclofen	29	13
Glipizide Er	Glipizide	29	11
Bupropion Hcl Sr	Bupropion Hcl	28	suppressed
Prednisone	Prednisone	27	18
Valacyclovir	Valacyclovir Hcl	27	14
Wixela Inhub	Fluticasone Propion/Salmeterol	27	12
Famotidine	Famotidine	26	12
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	25	suppressed
Myrbetriq	Mirabegron	23	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	22	suppressed
Ozempic	Semaglutide	22	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	22	suppressed
Glimepiride	Glimepiride	19	suppressed
Metronidazole	Metronidazole	19	14
Spironolactone	Spironolactone	18	suppressed
Synthroid	Levothyroxine Sodium	18	suppressed
Tradjenta	Linagliptin	18	suppressed
Clonidine Hcl	Clonidine Hcl	17	14
Digoxin	Digoxin	17	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	17	suppressed
Warfarin Sodium	Warfarin Sodium	17	suppressed
Xarelto	Rivaroxaban	17	suppressed
Clonazepam	Clonazepam	16	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	16	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	16	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	15	suppressed
Armour Thyroid	Thyroid,pork	15	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	15	suppressed
Breo Ellipta	Fluticasone/Vilanterol	15	suppressed
Hydralazine Hcl	Hydralazine Hcl	15	suppressed
Ropinirole Hcl	Ropinirole Hcl	15	suppressed
Aripiprazole	Aripiprazole	14	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	14	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	14	suppressed
Farxiga	Dapagliflozin Propanediol	14	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Mirtazapine	Mirtazapine	14	suppressed
Valsartan	Valsartan	14	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	13	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	13	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	13	suppressed
Ketoconazole	Ketoconazole	13	suppressed
Linzess	Linaclotide	13	suppressed
Risperidone	Risperidone	13	suppressed
Tizanidine Hcl	Tizanidine Hcl	13	suppressed
Trospium Chloride	Trospium Chloride	13	suppressed
Xanax	Alprazolam	13	suppressed
Betamethasone Valerate	Betamethasone Valerate	12	suppressed
Biktarvy	Bictegrav/Emtricit/Tenofov Ala	12	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	12	suppressed
Ramipril	Ramipril	12	suppressed
Testosterone	Testosterone	12	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	11	suppressed
Celecoxib	Celecoxib	11	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	11	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	11
Lamotrigine	Lamotrigine	11	suppressed
Terazosin Hcl	Terazosin Hcl	11	suppressed
Topiramate	Topiramate	11	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	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

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