Welcome to Pediatrics Unlimited!

Pediatrics Unlimited and its pediatricians serve families of Oak Park, Illinois and the surrounding neighborhoods, providing health care from ages birth up to 21 years of age. 

At Pediatrics Unlimited, we strive to make sure you and your child are always comfortable and informed, taking the time to talk with parents to help them understand their child's needs. We equip you with the knowledge necessary for promoting a lifetime of optimal health and wellness, both physically and emotionally, for your children.

At the end of your visit, you can be reassured that we will remain available for you if any questions and concerns pop up when you get home.

The opportunity to be by your side and to watch your children grow is a privilege we hold dear. We pride ourselves on making this journey with you and your children a pleasant one for all.

To help you get acquainted with our practice, we have provided the important information you need on our website. Please browse these pages to learn more about our skilled doctors, services, office details, commonly asked questions, recommended links and resources, and even to request an appointment.

Please do not hesitate to contact our office with questions or concerns. We look forward to meeting you and your family.


About Us

Dr. Jeffrey Cabotaje and Dr. Elizabeth Wollensak bring a comprehensive yet individualistic approach to Pediatrics Unlimited.

To find out more about Dr. Cabotaje and Dr. Wollensak, visit the link provided below.

Learn More

Welcome to Our Practice

Click here for an online resource center providing you with additional helpful information.

Sick Child?

View the KidsDoc Symptom Checker from HealthyChildren.org

Appointment Request

We've made requesting an appointment easy. Simply click this link to request your appointment now.


Choosing a pediatrician is an important and personal decision and we want you to feel at ease with the care you and your child will receive. Click here to learn more.

What's New

Meet Our Doctors

  • Jeffrey A. Cabotaje
    M.D., F.A.A.P.

    Dr. Cabotaje has been in private practice for over 15 years. He completed his undergraduate studies at the University of Notre Dame in South Bend, IN and obtained his medical degree in his home state at West Virginia University School of Medicine.

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  • Elizabeth Wollensak
    D.O., F.A.A.P.

    Dr. Wollensak was raised in Michigan and moved to the Chicago area in 2000. She attended Concordia University in Wisconsin for her undergraduate degree and then completed medical school at Midwestern University-Chicago College of Osteopathic Medicine in Downers Grove.

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  • "Staff is friendly, experienced and very accommodating for all types of situations, sicknesses and difficult patients/parents of all ages."
  • "The entire office, doctors, nurses, staff included, all seem to really be a family and make you feel welcome to be a part of it!"
  • "They always try to accommodate your child with an appointment when they are sick."
  • "I am a local physician myself and we could not be happier with the care our 2 year old has received since she was born. The staff consistently goes out of their way for us"
  • "Best pediatricians I've ever been to; they listen to you and are kind."

Hours of Operation - Subject to change

Note: Open two Saturdays/month. Please call to confirm.


9:00 am-12:00 pm

4:00 pm-7:00 pm


9:00 am-2:00 pm


9:00 am-12:00 pm

1:00 pm-5:00 pm


9:00 am-12:00 pm

1:00 pm-5:00 pm


9:00 am-12:00 pm


9:00 am-12:00 pm



Our Location

6853 North Ave. Oak Park, IL 60302