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Care Team

Need an appointment sooner? While your primary care provider or specialist are the anchor of your care team, their advanced practice providers and physician partners are available to provide care when you need it.

Locations

Joliet

301 N. Madison St. Suite 210Joliet, Illinois 60435
815-514-2200

About Maria Irene Victoria Onagan, MD

Philosophy of Care

I believe in providing compassionate care and in building relationships based on mutual trust and respect. I value working closely with parents and informing them on best practices in order to make informed healthcare decisions from well care and development to different illnesses. I look forward to partnering with you in the care of your child.

Board Certifications

Pediatrics

Languages

English

Tagalog

Clinical Interests

General pediatrics, growth and development, Asthma, allergies, Eczema, ADHD

Personal Interests

I enjoy spending time with my family, watching movies, and cooking

Memberships

American Academy of Pediatrics

Education
Schools
University of Santo TomasGraduation Date: 1992Degree: MD
Residency
Monmouth Medical CenterResident in Pediatrics2009
Cardinal Santos Medical CenterResident in Pediatrics1996

Ratings and Comments

Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.

Took the time to make sure my son also understood what was going on not just the parent

5

May 22, 2026

My experience with Dr. Onagan. Is Always amazing. She has been my son's pediatrician since birth. And he is 13 now. She is very attentive and explains everything the right way. Booking a appointment with her has always been a breeze. My son and my daughter adopted to her warmth of perfection and her personality that's just brightens the room. She is definitely a 10/10 in my book. Thank you Dr. Onagan for all the great service you have provided to us.

5

May 17, 2026

Dr Onagan is amazing. We have been with her for many years and will continue to follow her where ever she goes.

5

May 17, 2026

Great communication and informative

4

May 13, 2026

Dr. Onagan is fantastic and so extremely kind!

5

Apr 28, 2026

Patient Satisfaction Rating

4.9

61 Reviews

The Patient Satisfaction Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Contact Us
Need Help?
Corporate Mailing Address1100 W 31st Street
Downers Grove, Illinois 60515
Main Line - (630) 469 9200Billing Customer Service - (866) 734 7680
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