Meet Our Team

Peyton Manning Children’s Hospital Ear, Nose and Throat Center has a dedicated team that provides family-centered care for both in-patient and outpatient care, as well as around-the-clock coverage in the Hilbert Pediatric Emergency Department. Our team includes:

Dr. Ronda A. Hamaker, Medical Director

ENT_hamaker.jpgResidency: Indiana University Medical Center/Riley Children's Hospital
Pediatric Otolaryngology Fellowship: Children's Hospital of Michigan


Dr.Hamaker has served as the Medical Director for the Ear, Nose and Throat Center at Peyton Manning Children’s Hospital since 2007.  In 2009, Dr. Hamaker began developing a Pediatric Dysphagia Program for Peyton Manning Children’s Hospital. She completed her residency at the Indiana University School of Medicine in Indianapolis, Indiana and fellowship at Children’s Hospital of Michigan in Detroit, Michigan.   She has received numerous awards for outstanding patient care, teaching and research achievement. In her free time, Dr.Hamaker enjoys spending time with family, friends, skiing and knitting. Dr. Hamaker also serves as the Division Chair for St Vincent Hospital (2012-2014).


Specialty Interests:

Airway abnormalities, Voice and Swallowing concerns


America's Top Physicians, Pediatric Otolaryngology, 2010, 2011 & 2012

  • Patient Choice Award, 2008, 2009, 2010, 2011
  • U.S. News and World Report: Top Doc, 2011, 2012 & 2013
  • Consumer Research Council of America Top Physician, 2010
  • Castle Connolly Top Doctors Award, 2011
  • Indianapolis Monthly Top Doc Award, 2005
  • Indianapolis Monthly Top Doc Award, 2011 & 2012
  • Secretary Treasurer Central Indiana Otolaryngology Society 
  • Consumer Research Council 2010-2013

Dr. R. Christopher Miyamoto

ENT_miyamoto.jpgResidency: University of Cincinnati Medical Center/Cincinnati Children's Hospital
Pediatric Otolaryngology Fellowship: Children's Hospital Boston/Harvard Medical School

Dr. Miyamoto enjoys the broad spectrum of pediatric otolaryngology ranging from routine procedures such as ear tubes and tonsillectomy to complex procedures including major ear surgery [mastoidectomies, complicated tympanoplasties, cochlear implants, Bone Anchored Hearing Aids (BAHA] ], airway reconstructive surgery, bronchoscopy, head & neck surgery [neck masses/branchial cleft cysts and thyroid surgery] and sinus procedures. Much of his practice involves managing complicated ear conditions and hearing loss.


  • Early Career Achievement Award, Indiana University School of Medicine Alumni Association, 2007
  • Best Doctors in America-- Pediatric Otolaryngology, 2009-2013
  • Indianapolis Monthly Magazine Best Doctors: Pediatric Otolaryngology, 2005
  • Castle Connolly Top Doctors Award, 2011, 2012 & 2013
  • U.S. News & World Report: Top Pediatric ENT- Otolaryngologist, 2011. 2012 & 2013
  • Indianapolis Monthly Top Doc Award, 2011


Dr. Dean James (DJ) Trigg, President of the Medical Staff, St Vincent Fishers Hospital 2013-2014

ENT_trigg.jpgResidency: University of Illinois-Chicago/Children's Memorial Hospital
Pediatric Otolaryngology Fellowship: University of California at San Francisco


Dr. Trigg has been a member of the craniofacial team at Peyton Manning Children's Hospital at St.Vincent since 2007. His interests include neonatal ENT, recurrent ear infections, sinus disease and sleep abnormalities. He has conducted research and published papers on vascular anomalies, hearing loss, pediatric gastoesophageal reflux, laryngeal cancer and nerve regeneration. Outside the hospital Dr. Trigg is an avid reader, runner and traveler. Dr. Trigg also serves as the President of the Medical Staff at St.Vincent Fishers Hospital (2013-2014).