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Tom Klein, MD

NPI 1326094194ActiveIndividual· Internal Medicine· Riverwoods, IL

Internal Medicine (MD) with Tamid Medical Group, practicing in Riverwoods, Illinois. Their prescriptions cost Medicare Part D more than their services did: $3,046,702 for 54,342 claims, against $186,723 paid for services in 2024. Teva Pharmaceuticals USA, Inc. was the largest of 3 companies reporting payments in 2025, $159.78 in all, mostly education. Lists Community First Medical Center and 3 other hospitals as hospital affiliations.

Overview

NPI1326094194
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMay 25, 2006
Last updated in NPPESDec 3, 2024
Certified by providerDec 3, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X036065537IL
Internal Medicine207R00000X4193020WI

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 patients403
Services billed2,920 across 33 procedure codes
Paid by Medicare$186,723

Part D prescriptions in 2024

Prescriptions (claims)54,342 · 56,903 30-day fills
Patients1,064
Total drug cost$3,046,702
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Graduation year1976
Medicare specialtyInternal Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$159.78 · 3 payments from 3 companies

Top paying companies in 2025

What the 2025 payments were for

  • Education$111.49 · 1 payment
  • Food and Beverage$48.29 · 2 payments

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

Other Internal Medicine providers in Riverwoods

All Internal Medicine providers in Illinois →