Keith Miyamoto MD | Pediatrician | Whittier, CA | PIH Health
Keith S. Miyamoto

Keith S. Miyamoto MD


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4.8 / 5 (based on 401 Reviews) View 17 Comments

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Dr. Miyamoto became inspired to pursue pediatric medicine after a cousin died of leukemia at age seven. “I love children. They make me laugh and smile,” comments Dr. Miyamoto who enjoys “caring for the wide range of diseases and health issues” and cherishes the relationships he’s established with parents and families. A native of Arcadia, Dr. Miyamoto played water polo, basketball and swam in high school. Married for over 30 years, the father of three stays active with golf, running, skiing and mountain biking and belongs to ChildD, a nonprofit organization that provides resources to students with learning disabilities.

Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Physicians





  • Pediatrics


Medical School

University of California School of Medicine (Irvine)


Children's Hospital of Los Angeles (CHLA Peds)


Children's Hospital of Los Angeles (CHLA Peds)

Board Certifications

  • Pediatrics


Patient Reviews

January 14, 2022
We love Dr. Miyamoto and his team!
January 11, 2022
This was my first time seeing Dr. Keith S. Miyamoto. I must say, he is truly a great MD. He was kind from the beginning til the end. And when I say kind, I mean there was no judgmental looks or attitude. He did not speak to us in a condescending manner. He was polite and reassuring with my son and was extremely patient. I can keep going telling you how I finally found a doctor that made me and my husband, especially our son, feel great about our appointment. Thank you Dr. Miyamoto
December 28, 2021
We were greeted kindly and in a professional manner. [name removed], RN welcomed us and made us feel like we mattered. Extremely professional! Dr. Miyamoto was excellent. He spoke directly to my son. He let my son explain. He listened carefully. He put my teenager at ease. Dr. Miyamoto explained what was going on and about the medication. Great experience. Thank you
December 16, 2021
Dr. Miyamoto is the best! He is patient, kind and caring.
December 13, 2021
Dr. Miyamoto is great. I trust his advice and know that he listens to my input. Highly recommend him.
December 07, 2021
Dr Miyamoto is the best! He always takes the time to explain everything and always has my daughters best interest at heart. We love him so much. And his care for children shows in how he treats his patients. There's no one like him!
December 03, 2021
Dr. Miyamoto is the best of the best. He is always so efficient, takes his time each time, and always makes sure I understand what is being explained during my child visit. His office staff is always very nice, respectful, and helpful!
November 29, 2021
Okay, I think having my appointment with [name removed] and Dr. Miyamoto was overall very good. I felt like sometimes some of the questions, I felt like he wasn't empathetic enough, but overall I felt like he explained things in a very timely matter. He had very good bedside manners as well. One thing that I really appreciated him doing was warming up his hand before touching my daughter to examine - do a physical on her but yeah, I think overall, one of the things he could improve on is just being a little more empathetic, especially to some of the questions his patients have to ask, especially as new parents. Thank you so much.
November 22, 2021
Dr. Miyamoto is the best! He has been taking care of my kids for over 15 years. We love how he takes his time and really listens to the kids!
November 19, 2021
Dr. Miyamoto is very knowledgeable & caring. He is a good listener & always being so patience explaining to worry parents. Our boys are always very comfortable with Dr Miyamoto's care. Our boys are very lucky to have him as their pediatrician since birth.
November 09, 2021
All of my selections are for 4. I think Dr. Miyamoto is a great child provider. And I appreciate his care. Thank you very much.
November 04, 2021
Great service, great doctors. Keep it up.
November 02, 2021
Dr Miyamoto is always fantastic and always so kind and seems so caring. The nurse we typically see is also amazing and fantastic and seems so empathetic. I'm disappointed to say that the nurse who attended by baby this last visit seemed annoyed and spoke to me curtly. I hope this feedback will assist in aiding this individual to reflect on their tone with patients, as I myself work in a hospital, I am required to do the same.
November 01, 2021
Best Doctor
November 01, 2021
We were seen an hour past our scheduled appointment time. Understandable that people have needs that may require additional time.
October 18, 2021
Thank you for setting up an appt quickly
October 11, 2021
I love the staff and the providers in this office, but I have noticed that there is no enforcement of mask mandates and no screening of patients before they come in the building or even in the waiting room. There were parents in the waiting room without masks on and I have noticed this is a trend in recent weeks, so it is concerning to me.
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