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Welcome to the online home of Westerville Pediatric Specialists, Inc. Our mission is to provide comprehensive care to your children, from the nursery through adolescence. Messages through the portal should only be used for routine well child appointments. If your child happens to be ill, please call our office to schedule your child to be seen. Please allow 24-48 business hours for us to respond to messages sent through the portal!

Our qualified doctors and staff have dedicated their lives and careers to caring for the health and well-being of your children. Trust in their expertise to effectively diagnose and treat any illnesses your children may have and to maintain the overall quality of your children's health.

We are currently located at 575 Westar Crossing, Suite 101, Westerville, 43082 (off Cleveland Avenue and County Line Road), with a second office at 700 West Cherry Street, Suite B, Sunbury, 43074.

We offer evening and Saturday hours in our Westerville office, as well as 24-hour call coverage.             

*Telemedicine is now being offered (wps.doxy.me) for certain office visits, such as medication checks, ADHD, rechecks & certain sick visits. Click here for more information.

  • Michael J. Leymaster, MD, FAAP
  • Michelle E. Yaw, MD, FAAP
  • Amanda Jett, APRN-CNP
  • Teri Campbell, Practice Manager

Westerville Pediatric Specialists, Inc.
575 Westar Crossing, Suite 101              Monday:     8:00 am-5:30 pm
Westerville, Ohio 43082                        Tuesday:     8:00 am-4:30 pm
Phone: 614-508-ABCD (2223)                Wednesday: 8:00 am-4:30 pm
Fax: 614-508-2233                               Thursday:    8:00 am-5:30 pm
                                                        Friday:       8:30 am-4:00 pm
                                                        Saturday:    9:00 am-12:30 pm (July-March)

Phone Hours are Monday through Friday 9:00am - 4:30pm & Saturday 9:00am-11:30am.

Sunbury Mills Pediatrics

700 West Cherry Street, Suite B
Sunbury, Ohio 43074
Phone: 740-965-6369
Fax: 740-965-6371

Beginning April 1, 2024, our Sunbury location will be open with reduced hours due to staff shortage.

If you would like to talk to our billing specialist, call Monday through Friday from 9:00 a.m. until 4:00 p.m.

If you would like to have school forms completed, please email the form to our forms email at [email protected] and we will email it back to you once it is completed. 

Register to get your children ages 0-5 a free book each month from Ohio's Statewide Imagination Library program at:

Enroll — Ohio Governor's Imagination Library (ohioimaginationlibrary.org)

We accept Cash, Checks, Visa, MasterCard, Discover and American Express credit cards. 

Need help paying your bill? We accept CareCredit. Please click on the link below for more information.


Our Location

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Meet Our Pediatric Staff

  • Michael J. Leymaster, M.D., F.A.A.P.

    He graduated from the University of Cincinnati College of Medicine and completed his residency in pediatrics at Case Western Reserve University/MetroHealth Medical Center in Cleveland in June 2002. Dr. Leymaster enjoys all areas of pediatrics and has a special interest in sports medicine. He is board certified, a Fellow in the American Academy of Pediatrics (F.A.A.P.) and is the former chair of pediatrics at Mount Carmel/St Ann's. Dr. Leymaster joined our practice in July 2002.

  • Michelle E. Yaw, M.D., F.A.A.P.

    Her pediatric training was completed at Wright State University School of Medicine/The Children's Medical Center of Dayton in 1998. Before joining our practice in 2006, she was in private practice for eight years in the Dayton, Ohio, area. Dr. Yaw is board certified and is a Fellow in the American Academy of Pediatrics (F.A.A.P.). She is an associate professor at Wright State University.

  • Amanda Jett, RN, MS, CPNP-PC

    Completed her undergraduate studies at The Ohio State University in 2002 before returning for her nursing degree and master of nursing in advanced practice, specializing in pediatrics. She is board certified and joined our practice in 2018.


  • "I’m always able to get into an appt quickly if needed. The nurses are quick to call you back if you have questions. Everyone’s always professional and take great care of the kids. Dr. Leymaster did a great job coming up with a plan to take care of my kids."
    Jordan W.
  • "Can get last minute appt, which is great. Prior to COVID, they had afternoon walk in hrs (due to COVID, you have to call first to use this). Dr. Yaw and any other staff seen when she isn't available have been great. They listen to my concerns and explain everything thoroughly. The front desk staff are all helpful and considerate."
    Danielle M.
  • "My son has been going to both office since he has been born. The doctors are all very friendly and loving. The best part are the nurses Kim and Becky my son loves them both and they are excellent nurses. They are both caring and loving and know what they are talking about. So thankful there are still nurses out there who care. Definitely recommend both nurses! ❤️"
    Katherine H.

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