Dr. Janie Doan is the founder of Cy Fair Pediatrics and a board-certified pediatrician with more than a decade of experience caring for children in the Cypress and Northwest Houston communities.

​

She earned her medical degree from the University of Texas Medical Branch and completed her pediatric residency at Baylor College of Medicine.

 

Dr. Doan has a strong clinical interest in preventive care, childhood development, and building long-term relationships with families. Her patient-centered philosophy focuses on education, trust, and continuity of care.

Christina Sullivan is a certified pediatric nurse practitioner specializing in primary pediatric care. She provides well-child visits, same-day sick appointments, and ongoing
care for acute and routine pediatric needs.

 

Christina earned her Bachelor of Science in Nursing from Baylor University and completed her Pediatric Nurse Practitioner master’s degree at Texas Woman’s University in 2014. She has over nine years of experience caring for children in the Houston area and is a member of the National Association of Pediatric Nurse Practitioners.

 

She enjoys spending time with her family and playing the piano.

Dr. Valena C. Sellers is a board certified pediatrician at Cy Fair Pediatrics. Originally from La Coste, Texas, Dr. Sellers graduated from the University of Texas San Antonio where she received a Bachelor of Science Degree in Biology.

​

Dr. Sellers continued her education at the University of Texas Medical Branch- Galveston for medical school, and then went on to complete her residency training at the University of Florida in Gainesville, Florida. She returned to the great state of Texas in 2017 to join Cy Fair Pediatrics.

​

Dr. Sellers works closely with parents to ensure children receive timely wellness checkups, immunizations, and sick care while supporting healthy physical and emotional development.

Vy Lan Ho is a physician assistant who provides comprehensive pediatric care for infants, children, and adolescents. She was born and raised in Houston, Texas and is dedicated to serving families throughout Cypress and Northwest Houston.

 

Vy earned her Bachelor of Science in Biochemistry from Texas Tech University and completed her Master of Physician Assistant Studies at Texas Tech University Health Sciences Center. She previously worked as a certified pharmacy technician and participated in a medical mission with the Project Vietnam Foundation, providing care to children in underserved communities in Vietnam.

​

Fun Fact: Vy is a former Cy Fair Pediatrics patient who returned to the practice as a provider after graduating as a patient in 2013.