ERIC R KALLWITZ M.D.
Accepted Insurance for NPI 1275716607
Internal Medicine - Gastroenterology in Chicago, IL

ERIC R KALLWITZ M.D., a internal medicine provider in Chicago, IL, is listed as in-network for 8 health insurance plans from Oscar Health. This list is compiled from the CMS Health Insurance Marketplace public use files for the 2026 plan year.

Coverage Questions FAQs

Common questions about this provider’s insurance participation, answered from the CMS Health Insurance Marketplace and Medicare enrollment files.

What insurance does ERIC R KALLWITZ M.D. accept?

Marketplace files for the 2026 plan year list ERIC R KALLWITZ M.D. as in-network for 8 plans from Oscar Health. The full list above shows each plan's metal level, network type, and plan IDs.

Is ERIC R KALLWITZ M.D. enrolled in Medicare?

Yes. CMS enrollment files show this provider accepts Medicare assignment, meaning they agree to accept the Medicare-approved amount as full payment for covered services. The provider is also enrolled in PECOS, which certifies them to order, refer, and prescribe for Medicare beneficiaries.

What network types does ERIC R KALLWITZ M.D. participate in?

The accepted plans include 8 HMO plans. HMO (Health Maintenance Organization) plans cover care from network providers and typically require a primary care referral for specialists.

Where does this insurance data come from and how current is it?

Plan participation is compiled from the official CMS Health Insurance Marketplace public use files for the 2026 plan year and refreshed as CMS publishes updated files. Networks change during the year, so always verify coverage with the insurance company or the provider's office before scheduling care.