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Mariko M. O’Byrne

About Mariko M. O’Byrne

Titles

Attending Physician

Clinical Assistant Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania

Certifications

Pediatrics – American Board of Pediatrics

Leadership and Memberships

2014-Present, American Academy of Pediatrics, Section on Obesity
2007-Present, American Academy of Pediatrics, Fellow

Education & training

Graduate Degree

MS - Columbia University College of Physicians and Surgeons, New York, NY

Medical Degree

MD - George Washington University School of Medicine & Health Sciences, Washington, DC

Internship

Pediatrics - The Children’s Hospital of Philadelphia

Residency

Pediatrics - The Children's Hospital of Philadelphia

Team affiliations

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Patient experience rating

(based on 142 submissions)
  • Clear Explanation
    4.9 of 5
  • Showed Concern
    4.9 of 5
  • Included in decisions
    4.9 of 5
  • Would recommend
    4.9 of 5
  • Discussion of Proposed Treatment
    4.9 of 5
Learn about the patient experience rating system

Comments

  • She is awesome with my kids
    5 of 5
    May 20, 2024

  • We love Dr. O'Byrne! She's always so sweet and connects with my son and really directs the conversation and appointment at him, which was a big deal since we weee also getting shots. She made him and me feel comfortable with the plan and what to expect. She always makes sure we have time to ask whatever questions we have and explain things more than once to make sure we understand. I'm really appreciate that she noticed that there's still fluid in my sons ear and offered a follow up appointment in a month to keep tabs on it and make sure we get it a referral If we really need it. Great proactive approach which we're grateful for. She's one of the best there!
    5 of 5
    May 02, 2024

  • Dr. O'Byrne always starts off by asking us if we have any immediate questions or concerns we have regarding our son and is always answers our questions sincerely and thoughtfully (even if our questions may come off as "common sense" or us just overthinking). We really appreciate how attentive and concerned she is for our son's well-being.
    5 of 5
    Mar 13, 2024

  • First visit with Dr. O'Byrne and she had knowledge of all of her complex medical needs and concerns.
    5 of 5
    Mar 11, 2024

  • Love Dr O'Byrne
    5 of 5
    Feb 09, 2024

  • Dr. Mariko M O'byrne was knowledgeable and communicative. She was thorough in her diagnosis and explained her recommendations to me with a balance of detail and respect.
    5 of 5
    Jan 26, 2024

  • Dr, O'byrne is always attentive and willing to listen to any questions or concerns we may have. She is very easy to talk with and makes sure to address any issues or concerns we parents bring up. Overall great experience every time we see Dr. O'byrne.
    5 of 5
    Dec 08, 2023

  • We love Dr. O'Byrne! She's been our son's PCP since birth and it was so nice to have her for the unexpected sick visit. She always explains things so simply and clearly and makes it a point to always connect with my son. We love her!!
    5 of 5
    Dec 07, 2023

  • Dr. O'Byrne is a wonderfully thorough, attentive and compassionate physician. The call she made a few days after the visit to ensure my child was doing better was above and beyond and really made our concerns feel validated. Her care is too notch!
    5 of 5
    Sep 22, 2023

  • Dr. O'Byrne is wonderful, caring and compassionate and really helpful!
    5 of 5
    Jul 31, 2023

  • Such a kind pediatrician. We deeply trust the docs at chop roxborough, and this visit just confirms our trust in the care we receive. It means so much to our family.
    5 of 5
    Jul 28, 2023

  • First time visit with Dr. O'Byrne. Very knowledgeable and extremely caring and concerned about my child's injury
    5 of 5
    Jun 14, 2023

  • Dr O'Bryne is excellent. We always prefer to go to her. Very first doctor we met and fell in love with her kindness and efficiency.
    5 of 5
    May 23, 2023

  • Dr. Mariko O'Byrne is amazing. She treats us with respect, takes time to answers my questions, is very kind, and knowledgeable. She is an amazing provider. I would highly recommend her. She is the best!
    5 of 5
    May 01, 2023

  • Dr Mariko O. Is amazing with kids. Also very clear and straightforward. She is not pushy of what should be done but gives a ton of useful recommendations.
    5 of 5
    Mar 03, 2023
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About the Patient Experience Rating System

The Patient Experience Rating is an average of all responses to the care provider related questions shown above from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question. Responses are measured on a scale of 1 to 5 with 5 being the best score. We are committed to true transparency. However, to ensure the comments are fair and correctly attributed, we review each one before posting to the website. We exclude entire comments that disclose patient’s protected health information, are off-topic, or include other confidential or inappropriate content. Comments will appear on provider bios only if providers have a minimum number of comments. Comments are shared internally for education purposes to ensure that we are doing our very best for the patients and families for whom we are privileged to care. The comments are submitted by patients and families and reflect their views and opinions. The comments are not endorsed by and do not reflect the views of Children’s Hospital of Philadelphia.