Healthcare provider profile · identity verified

Eric Berquist, D.O.

Family Practice · SAN DIEGO, CA · NPI 1023379997

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	453	188
Rosuvastatin Calcium	Rosuvastatin Calcium	289	122
Amlodipine Besylate	Amlodipine Besylate	246	104
Losartan Potassium	Losartan Potassium	198	88
Levothyroxine Sodium	Levothyroxine Sodium	154	61
Lisinopril	Lisinopril	144	59
Gabapentin	Gabapentin	121	52
Metformin Hcl	Metformin Hcl	119	50
Meloxicam	Meloxicam	115	48
Omeprazole	Omeprazole	115	54
Metformin Hcl Er	Metformin Hcl	114	48
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	109	21
Albuterol Sulfate Hfa	Albuterol Sulfate	94	47
Pantoprazole Sodium	Pantoprazole Sodium	86	28
Tamsulosin Hcl	Tamsulosin Hcl	83	37
Alendronate Sodium	Alendronate Sodium	77	33
Metoprolol Tartrate	Metoprolol Tartrate	77	31
Terazosin Hcl	Terazosin Hcl	75	31
Trazodone Hcl	Trazodone Hcl	72	28
Sertraline Hcl	Sertraline Hcl	68	24
Prednisone	Prednisone	58	50
Escitalopram Oxalate	Escitalopram Oxalate	57	21
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	57	21
Glipizide	Glipizide	51	25
Allopurinol	Allopurinol	48	18
Hydrochlorothiazide	Hydrochlorothiazide	45	20
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	45	15
Simvastatin	Simvastatin	45	23
Potassium Chloride	Potassium Chloride	39	13
Pradaxa	Dabigatran Etexilate Mesylate	37	17
Furosemide	Furosemide	35	19
Triamcinolone Acetonide	Triamcinolone Acetonide	34	26
Propranolol Hcl	Propranolol Hcl	33	12
Atenolol	Atenolol	32	13
Arexvy	Rsvpref3 Antigen/As01e/Pf	31	31
Pioglitazone Hcl	Pioglitazone Hcl	31	13
Spiriva Respimat	Tiotropium Bromide	31	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	31	suppressed
Finasteride	Finasteride	30	11
Ondansetron Odt	Ondansetron	30	14
Doxycycline Monohydrate	Doxycycline Monohydrate	29	28
Spironolactone	Spironolactone	29	14
Wixela Inhub	Fluticasone Propion/Salmeterol	29	suppressed
Tramadol Hcl	Tramadol Hcl	28	suppressed
Colchicine	Colchicine	27	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	27	suppressed
Hydrocortisone	Hydrocortisone	27	17
Montelukast Sodium	Montelukast Sodium	26	12
Alvesco	Ciclesonide	23	13
Lorazepam	Lorazepam	22	suppressed
Acyclovir	Acyclovir	21	suppressed
Betamethasone Diprop Augmented	Betamethasone/Propylene Glyc	21	suppressed
Ibuprofen	Ibuprofen	21	11
Lactulose	Lactulose	20	suppressed
Ozempic	Semaglutide	20	suppressed
Terbinafine Hcl	Terbinafine Hcl	20	suppressed
Testosterone	Testosterone	20	suppressed
Valacyclovir	Valacyclovir Hcl	20	suppressed
Adacel Tdap	Diph,pertuss(Acell),tet Vac/Pf	19	19
Bisoprolol Fumarate	Bisoprolol Fumarate	19	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	19	suppressed
Ezetimibe	Ezetimibe	19	suppressed
Jardiance	Empagliflozin	19	suppressed
Duloxetine Hcl	Duloxetine Hcl	18	suppressed
Fluconazole	Fluconazole	18	12
Metoprolol Succinate	Metoprolol Succinate	17	suppressed
Nitroglycerin	Nitroglycerin	17	suppressed
Baclofen	Baclofen	16	suppressed
Bupropion Xl	Bupropion Hcl	16	suppressed
Clonazepam	Clonazepam	16	suppressed
Clopidogrel	Clopidogrel Bisulfate	16	suppressed
Hydralazine Hcl	Hydralazine Hcl	16	suppressed
Buspirone Hcl	Buspirone Hcl	15	suppressed
Famotidine	Famotidine	15	suppressed
Oxycodone Hcl	Oxycodone Hcl	15	suppressed
Tizanidine Hcl	Tizanidine Hcl	15	suppressed
Carvedilol	Carvedilol	14	suppressed
Cephalexin	Cephalexin	13	12
Donepezil Hcl	Donepezil Hcl	13	suppressed
Metronidazole	Metronidazole	13	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	12	12
Ketoconazole	Ketoconazole	12	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	12	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	12	12
Topiramate	Topiramate	12	suppressed
Cefadroxil	Cefadroxil	11	suppressed
Glimepiride	Glimepiride	11	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	11	suppressed
Mirtazapine	Mirtazapine	11	suppressed
Pravastatin Sodium	Pravastatin Sodium	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