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Mallory O’Niel, MD

Pediatric Otolaryngologist

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  • Medical School: Medical College of Wisconsin, Milwaukee, WI
  • Residency: (Otolaryngology Head and Surgery) Medical College of Wisconsin, Milwaukee, WI
  • Fellowship: (Pediatric Otolaryngology) Children’s Hospital and Clinics of Minnesota/University of Minnesota, Minneapolis, MN

About the Provider

Philosophy of Care

Dr. Mallory O’Niel understands that it is a privilege to have the opportunity to assist in the care of children and their families. She loves helping children overcome illness so they can grow and achieve their potential. Dr. O’Niel performs procedures, such as ear tubes and tonsillectomies, which make a significant impact on a family’s quality of life. Additionally, she performs more complex head and neck surgeries, including hearing restoration with cochlear implantation, airway
surgeries, craniofacial surgeries (cleft lip and palate), congenital malformations, and neck masses. She believes every child and family deserves an individualized and thorough approach to determine the best treatment plan for their specific situation.


Dr. O’Niel grew up in the Metro-Detroit area, leaving for undergraduate studies in Chicago at Northwestern University and then to Milwaukee for medical school and residency. She was attracted to Otolaryngology by the opportunity to be an expert in the head and neck, helping manage problems critical to everyone’s well-being such as breathing and hearing. During residency, she discovered a passion for pediatric otolaryngology. She completed a fellowship in Minneapolis at the Children’s Hospital and Clinics of Minnesota/University of Minnesota, where she received training in advanced pediatric otolaryngology procedures such as airway reconstruction, craniofacial surgery, voice disorders, head and neck surgery, as well as, cochlear implants. In her spare time, Dr. O’Niel loves spending time outdoors and on the water with her family and friends.


  • Head and Neck Masses
  • Craniofacial Anomalies/Cleft Lip and Palate
  • Voice Disorders
  • Velopharyngeal Insufficiency
  • Vocal Cord Paralysis
  • Pediatric Sinonasal Disease
  • Thyroid Surgery
  • Airway Surgery
  • Hearing Loss
  • Tympanostomy Tubes (Ear Tubes)
  • Pediatric Sleep Apnea
  • Tonsil and Adenoid Disorders

Dr. O’Niel also directs the Children’s Hospital of Michigan’s pediatric Multidisciplinary Voice Clinic, where they evaluate and treat children with voice concerns. This team approach includes in-depth assessments by a speech and language pathologist as well as an ENT in coordination to diagnose and treat each child’s specific voice issue.

Special Interests


  • American Academy of Otolaryngology Head and Neck Surgery (AAO-HNS)
  • American Society of Pediatric Otolaryngology (ASPO)
  • American Cleft Palate-Craniofacial Association (ACPA)

DMC Hospital Affiliation

  • Children’s Hospital of Michigan

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