Skip to content

Casey L. O'Connell, M.D.

NPI 1104039197ActiveIndividual· Internal Medicine, Hematology & Oncology· Los Angeles, CA

Internal Medicine, Hematology & Oncology (M.D.) in Los Angeles, California, trained at George Washington University School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $517,419 for 219 claims, against $46,100 paid for services in 2024. Sobi, Inc was the largest of 5 companies reporting payments in 2025, $10,374 in all, mostly consulting fees.

Overview

NPI1104039197
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 7, 2007
Last updated in NPPESNov 27, 2023
Certified by providerAug 29, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003XA80627CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Hematology/Oncology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients316
Services billed696 across 21 procedure codes
Paid by Medicare$46,100

Part D prescriptions in 2024

Prescriptions (claims)219 · 331 30-day fills
Patients60
Total drug cost$517,419
Generic share58% of claims

Medicare sources and data years

Education and affiliations

Medical schoolGeorge Washington University School of Medicine
Graduation year2001
Medicare specialtyHematology/Oncology
Secondary specialtiesHematology, Medical Oncology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$10,374 · 19 payments from 5 companies
  • 2024$3,698 · 8 payments from 4 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$8,750 · 5 payments
  • Travel and Lodging$1,184 · 5 payments
  • Food and Beverage$439.36 · 9 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other hematologist-oncologists in Los Angeles

All 178 hematologist-oncologists in Los Angeles · All hematologist-oncologists in California