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Abraham Thomas, MD

NPI 1063423655ActiveIndividual· Internal Medicine· Clifton, IL

Internal Medicine (MD) with Health Service Systems, Inc, practicing in Clifton, Illinois. Their prescriptions cost Medicare Part D more than their services did: $2,399,699 for 28,523 claims, against $209,073 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $294.02 in all, mostly food and beverage. Lists Northwestern Medicine Central Dupage Hospital and 3 other hospitals as hospital affiliations.

Overview

NPI1063423655
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 10, 2006
Last updated in NPPESJul 8, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X—IL

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 - Internal Medicine (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients823
Services billed3,207 across 40 procedure codes
Paid by Medicare$209,073

Part D prescriptions in 2024

Prescriptions (claims)28,523 · 47,178 30-day fills
Patients1,383
Total drug cost$2,399,699
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Graduation year1986
Medicare specialtyInternal Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$294.02 · 15 payments from 10 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$294.02 · 15 payments

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

Other internal medicine physicians in Clifton

All internal medicine physicians in Illinois