Dr. Ngoc Phuong Ly MD Pediatric Pulmonologist

Dr. Ngoc Ly is a pediatric pulmonologist in San Mateo, California and is affiliated with multiple hospitals in the area, including Saint Francis Memorial Hospital and UCSF Medical Center. She received her medical degree from University of Rochester School of Medicine and Dentistry and has been in practice for 16 years. Dr. Ly accepts several types of health insurance, listed below. She is one of 2 doctors at Saint Francis Memorial Hospital and one of 7 at UCSF Medical Center who specialize in Pediatric Pulmonology.

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Office Location

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Specialty & Clinical Interests

Pediatric Pulmonologist: General Pediatric Pulmonology

Clinical Interests: Asthma, Exercise-Induced Asthma, Chronic Bronchitis, BPD, Bronchoscopy, Cystic Fibrosis, Respiratory Function Tests

Hospital Affiliation

UCSF Medical Center
Ranked #45 in Pediatrics: Pulmonology

Saint Francis Memorial Hospital

Education & Medical Training

Virginia Commonwealth University Health System
Residency, Pediatrics, 1998–2001

Brigham and Women's Hospital
Fellowship, Respiratory Epidemiology, 2003–2006

Massachusetts General Hospital
Fellowship, Pediatric Pulmonology, 2001–2004

University of Rochester School of Medicine and Dentistry
Class of 1998

Harvard School of Public Health
Other Training, 2002–2004

Certifications & Licensure

American Board of Pediatrics
Certified 13 years in Pediatrics

American Board of Pediatrics
Certified 6 years in Pediatric Pulmonology

CA State Medical License
Active through 2015

Publications & Presentations


Gut microbiota, probiotics, and vitamin D: Interrelated exposures influencing allergy, asthma, and obesity?
Ly, N. P., Litonjua, A., Gold, D. R., Celedón, J. C.

Race and asthma control in the pediatric population of Hawaii.
Wu, B.H., Cabana, M.D., Hilton, J.F., Ly, N.P.

See all 21 publications

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • BCBS California CaliforniaCare HMO
  • BCBS North Carolina BlueOptions PPO
  • Blue Shield California HMO
  • Blue Shield California PPO
  • CIGNA Open Access
  • Excellus BCBS BluePPO
  • Excellus BCBS HMOBlue
  • Great West PPO
  • Health Net HMO - Employer Group
  • HIP of New York - Select PPO
  • Humana ChoiceCare Network PPO
  • Multiplan PHCS PPO
  • Multiplan PPO
  • MVP Healthcare HMO
  • MVP Healthcare PPO
  • Pacificare HMO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO

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