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STAFF TEAM

Experienced, Compassionate Care

Our staff is dedicated to caring for the whole child. We have experienced professionals who have supported the Clinic for many years. These professionals go beyond treatment by placing a strong emphasis on prevention and health education.

John McIlwain
Executive Director

John is a long-time Oak Park resident, and a passionate, mission-driven leader dedicated to guiding the Oak Park River Forest Infant Welfare Society and its cornerstone program, the IWS Children’s Clinic, with a blend of hunger, humility, and humor. With deep connections in the Oak Park community and a strong vision for leadership, John is committed to helping the organization unlock the full potential of every child it serves.

Before joining OPRF IWS, John was the Senior Director of External Affairs at Equal Hope, a health education and advocacy organization focused on improving health outcomes for African American women in Chicago. He also served as Vice President of Advancement at Aspire, a not-for-profit organization with a 60-year history of supporting children and adults with developmental disabilities. His career includes serving as the Senior Pastor of the First Congregational Church of Berwyn.

John resides in Oak Park with his wife, Kary, and their two dogs, Danny Boy and Sadie Girl. In his free time, he enjoys golf and exploring Oak Park's rich cultural offerings.

Medical Staff

Diane Butterfield, MD
Medical Director/Pediatrician

Dr. Diane Butterfield graduated from the University of Notre Dame and Rush Medical College, and completed her residency at the University of Chicago. She has been practicing medicine for more than 30 years. In her spare time, she likes to read, cook and travel. She lives in Chicago with her husband, with whom she has raised three grown children.

Angelica Hernandez, CMA
Medical Assistant

Lydia Jodrey, APRN, CPNP
Certified Pediatric Nurse Practitioner

Angelica Rosa
Medical Assistant/Receptionist

Dental Staff

Natalie Layne, DDS, MPH
Oral Health Director

Stephanie Bollow, DDS
Pediatric Dentist

Wanda Laszcz, DDS, MPH
General Dentist

Dental Degree from University of Illinois at Chicago. Earned a Masters in Public Health at the University of Illinois at Chicago. Has worked in a community health setting for over 10 years, lives in Chicago and enjoys running.

Kayla Moller
Pediatric Dentist

Christina Nunez
Pediatric Dentist

Chad Silver, DMD
Pediatric Dentist

Margaret Vizgirda, DDS
General Dentist

Received her B.S. at St. Olaf College and her DDS from UIC College of Dentistry. She served in the Army Dental Corps for ten years and has enjoyed working in public health for the past nine years. She keeps very busy with her three children.