Healthcare provider profile · identity verified

Alan Krystal

Family Practice · SAN MARCOS, CA · NPI 1215078399

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

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium21829
Levothyroxine SodiumLevothyroxine Sodium20022
Chlorhexidine GluconateChlorhexidine Gluconate12212
Tamsulosin HclTamsulosin Hcl11714
Quetiapine FumarateQuetiapine Fumarate11317
Metformin HclMetformin Hcl10613
OmeprazoleOmeprazole10213
Amlodipine BesylateAmlodipine Besylate9913
LisinoprilLisinopril8215
Trazodone HclTrazodone Hcl7711
Oxybutynin Chloride ErOxybutynin Chloride68suppressed
LorazepamLorazepam6519
Metoprolol TartrateMetoprolol Tartrate62suppressed
Potassium ChloridePotassium Chloride6011
LevetiracetamLevetiracetam58suppressed
FurosemideFurosemide5612
GabapentinGabapentin55suppressed
Fluticasone PropionateFluticasone Propionate4812
JardianceEmpagliflozin47suppressed
Metoprolol SuccinateMetoprolol Succinate47suppressed
Tramadol HclTramadol Hcl46suppressed
Oxycodone HclOxycodone Hcl45suppressed
Pantoprazole SodiumPantoprazole Sodium41suppressed
FamotidineFamotidine40suppressed
Divalproex SodiumDivalproex Sodium35suppressed
EliquisApixaban34suppressed
FenofibrateFenofibrate Nanocrystallized32suppressed
Losartan PotassiumLosartan Potassium32suppressed
OxycontinOxycodone Hcl31suppressed
SimvastatinSimvastatin29suppressed
RisperidoneRisperidone28suppressed
Sertraline HclSertraline Hcl28suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen27suppressed
Midodrine HclMidodrine Hcl27suppressed
Oxybutynin ChlorideOxybutynin Chloride27suppressed
Benazepril HclBenazepril Hcl26suppressed
JanuviaSitagliptin Phosphate25suppressed
Propranolol HclPropranolol Hcl25suppressed
Albuterol Sulfate HfaAlbuterol Sulfate24suppressed
FenofibrateFenofibrate,micronized24suppressed
Tolterodine Tartrate ErTolterodine Tartrate23suppressed
LamotrigineLamotrigine22suppressed
OlanzapineOlanzapine22suppressed
FenofibrateFenofibrate21suppressed
MirtazapineMirtazapine21suppressed
BaclofenBaclofen20suppressed
ClonazepamClonazepam19suppressed
Donepezil HclDonepezil Hcl19suppressed
IrbesartanIrbesartan19suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen19suppressed
TopiramateTopiramate19suppressed
CelecoxibCelecoxib18suppressed
AllopurinolAllopurinol16suppressed
KetoconazoleKetoconazole16suppressed
Valproic AcidValproic Acid (As Sodium Salt)16suppressed
Doxazosin MesylateDoxazosin Mesylate15suppressed
Escitalopram OxalateEscitalopram Oxalate15suppressed
Hydroxyzine HclHydroxyzine Hcl15suppressed
Zolpidem TartrateZolpidem Tartrate15suppressed
Alendronate SodiumAlendronate Sodium14suppressed
Clindamycin PhosphateClindamycin Phosphate14suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
LactuloseLactulose14suppressed
Lithium CarbonateLithium Carbonate14suppressed
MeloxicamMeloxicam14suppressed
Propranolol Hcl ErPropranolol Hcl14suppressed
AzithromycinAzithromycin13suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride13suppressed
XareltoRivaroxaban13suppressed
Azelastine HclAzelastine Hcl12suppressed
Buspirone HclBuspirone Hcl12suppressed
ClonidineClonidine12suppressed
EszopicloneEszopiclone12suppressed
Haloperidol DecanoateHaloperidol Decanoate12suppressed
Ibandronate SodiumIbandronate Sodium12suppressed
Icosapent EthylIcosapent Ethyl12suppressed
LinzessLinaclotide12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
NitrofurantoinNitrofurantoin Macrocrystal12suppressed
PhenobarbitalPhenobarbital12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
FinasterideFinasteride11suppressed
FluocinonideFluocinonide11suppressed
NaproxenNaproxen11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
Testosterone CypionateTestosterone Cypionate11suppressed

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.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
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