Attention GCI Patients — Effective October 6, 2025, the GCI Oak Lawn location will be closed. All patients of GCI Oak Lawn will be seen at our Chicago Ridge location at 10604 Southwest Highway, Suite 109, Chicago Ridge, IL 60415.

Advanced Practice Providers

Tammy Zweeres, APN, NP-C

Medical Oncology, Hematology

Locations

Ascension Illinois Cancer Care - Romeoville

500 S. Weber Rd.
Romeoville, IL 60446

815-773-7732

Education

Professional Education: MSN, Lewis University

Undergraduate Education: BSN, Millikin University

Certifications

American Association of Nurse Practitioners

American Nurses Credentialing Center - Family Nurse Practitioner (Certified)

Biography

Tammy Zweeres, APN, NP-C Family Practice, is a nurse practitioner who has clinically interests in breast and colon.