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Thomas L. Cao, MD

NPI 1194797266ActiveIndividual· Internal Medicine, Hematology & Oncology· Elgin, IL

Internal Medicine, Hematology & Oncology (MD) with Stat Cardiologist Inc, practicing in Elgin, Illinois. Their prescriptions cost Medicare Part D more than their services did: $218,951 for 1,674 claims, against $76,709 paid for services in 2024. Janssen Biotech, Inc. was the largest of 4 companies reporting payments in 2025, $213.06 in all, mostly food and beverage. Lists Advocate Sherman Hospital and 2 other hospitals as hospital affiliations.

Overview

NPI1194797266
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedFeb 3, 2006
Last updated in NPPESMar 25, 2019

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X036098274IL

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients94
Services billed932 across 14 procedure codes
Paid by Medicare$76,709

Part D prescriptions in 2024

Prescriptions (claims)1,674 · 3,803 30-day fills
Patients122
Total drug cost$218,951
Generic share91% of claims

Medicare sources and data years

Education and affiliations

Graduation year1983
Medicare specialtyInternal Medicine
Secondary specialtiesMedical Oncology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$213.06 · 8 payments from 4 companies
  • 2024$715.40 · 28 payments from 11 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$213.06 · 8 payments

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

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