About Sophia N. Williams, MD

Watching family members face difficult illnesses inspired Sophia N. Williams, MD, to become a doctor. She wanted the opportunity to find medical solutions and provide compassionate healthcare.

As a pediatric pulmonologist, Dr. Williams offers children with respiratory conditions the most advanced approaches to diagnosis and treatment. She specializes in cystic fibrosis, mobile asthma care, pulmonary hypertension and bronchopulmonary dysplasia (BPD).

"Pulmonary care, to a certain extent, is very mechanical," says Dr. Williams. "It fosters my joy for problem-solving and exploring new things."

"I enjoy being on the journey to good health with the child and their family," she says. "I want them to enjoy life to their fullest potential. In delivering care, I strive to incorporate family values and conduct a very family-centered approach. Plus, children are fun and resilient, so they are a great population to work with."

Recognized as one of Phoenix Magazine's Top Docs for the last four years, Dr. Williams is a Cystic Fibrosis Foundation Advisory Board member. At Phoenix Children's, she is a committee member for the Program Evaluation/Pediatric Residency Committee and the Continuing Medical Education (CME) Committee. Also, Dr. Williams serves as Pulmonary Rotation Director. Active in local and state professional organizations, Dr. Williams participates in the American Thoracic Society, BPD Collaboration and Mountain West Cystic Fibrosis Consortium.

Outside of work, Dr. Williams enjoys cooking with her kids, dancing and traveling.

Medical School / Education

SUNY Downstate Medical Center, Brooklyn, NY


SUNY Downstate Medical Center, Brooklyn, NY


(Pediatric Pulmonology) Miller Children's Hospital - Long Beach Memorial - UC Irvine, Long Beach, CA

Pediatric Pulmonology


Cystic Fibrosis

Top Doctor Recipient, PHOENIX magazine

Professional Affiliations

BPD Collaboration

American Thoracic Society

Mountain West Cystic Fibrosis Consortium

Member, Cystic Fibrosis Foundation Advisory Board


I was so impressed how Respectful, Czring, Helpful. I felt so comfortable and feeling Dr. William's is the right Doctir for my child. The Staff just exceptional !

Dr. Williams is an amazing doctor. She is always very understanding and empathetic. She has been amazing since my daughter started treating with her providing excellence in care and service. My daughter has made strides since under her care.