Healthcare provider profile · identity verified

Cassandra Ohlsen, MD

Internal Medicine · PACIFIC GROVE, CA · NPI 1356457170

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
Levothyroxine SodiumLevothyroxine Sodium529150
Losartan PotassiumLosartan Potassium28187
Atorvastatin CalciumAtorvastatin Calcium27789
Amlodipine BesylateAmlodipine Besylate23169
SimvastatinSimvastatin13043
Rosuvastatin CalciumRosuvastatin Calcium12937
HydrochlorothiazideHydrochlorothiazide11535
Alendronate SodiumAlendronate Sodium11036
LisinoprilLisinopril10736
Metoprolol SuccinateMetoprolol Succinate8726
Olmesartan MedoxomilOlmesartan Medoxomil7924
Trazodone HclTrazodone Hcl7325
Sertraline HclSertraline Hcl7221
AtenololAtenolol7020
Diltiazem 24hr Er (Cd)Diltiazem Hcl7020
EzetimibeEzetimibe6018
Metformin HclMetformin Hcl5917
Escitalopram OxalateEscitalopram Oxalate5820
SynthroidLevothyroxine Sodium5316
EstradiolEstradiol4316
AllopurinolAllopurinol4013
Metformin Hcl ErMetformin Hcl34suppressed
Bupropion XlBupropion Hcl3112
CarvedilolCarvedilol29suppressed
ChlorthalidoneChlorthalidone29suppressed
ValacyclovirValacyclovir Hcl2913
AcyclovirAcyclovir2811
Doxazosin MesylateDoxazosin Mesylate28suppressed
OmeprazoleOmeprazole27suppressed
Hydralazine HclHydralazine Hcl26suppressed
LorazepamLorazepam24suppressed
Venlafaxine Hcl ErVenlafaxine Hcl24suppressed
Montelukast SodiumMontelukast Sodium23suppressed
Fluoxetine HclFluoxetine Hcl22suppressed
Paroxetine HclParoxetine Hcl22suppressed
Benazepril HclBenazepril Hcl21suppressed
Metoprolol TartrateMetoprolol Tartrate21suppressed
GabapentinGabapentin20suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide20suppressed
IrbesartanIrbesartan19suppressed
SpironolactoneSpironolactone19suppressed
AzithromycinAzithromycin1615
Pantoprazole SodiumPantoprazole Sodium16suppressed
Sumatriptan SuccinateSumatriptan Succinate16suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
Donepezil HclDonepezil Hcl15suppressed
EliquisApixaban15suppressed
PrednisonePrednisone15suppressed
Terazosin HclTerazosin Hcl15suppressed
Albuterol Sulfate HfaAlbuterol Sulfate14suppressed
FurosemideFurosemide14suppressed
Raloxifene HclRaloxifene Hcl14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
PremproEstrogen,con/M-Progest Acet13suppressed
Verapamil ErVerapamil Hcl13suppressed
AlprazolamAlprazolam12suppressed
FenofibrateFenofibrate Nanocrystallized12suppressed
DuleraMometasone/Formoterol11suppressed
Glipizide ErGlipizide11suppressed
Nifedipine ErNifedipine11suppressed

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