Serving Boulder County Since 1949

Allen Ruan, MD, FAAP

Pediatrics
Comprehensive Care for Children from Birth to Young Adults

About Dr. Ruan

Dr. Allen Ruan is a pediatrician serving children and families in Boulder and Longmont. His approach to pediatric care emphasizes careful listening, thorough medical histories, focused physical exams, and a strong partnership with parents. He works with families to understand their child’s needs and determine the appropriate next steps, whether that means active monitoring, medical treatment, or referral.

Listening closely to children and their parents is central to his practice. Because many symptoms are observed at home, he considers families’ observations essential to understanding a child’s health. He combines those insights with a careful clinical evaluation to guide decisions about further testing and treatment.

Building a solid working partnership with each child and family is central to his approach. While he may see a child only a few times a year, parents are there every day. He respects each family’s concerns and priorities and believes that supporting a child’s physical and mental health requires a shared understanding of the goals of care.

Having wanted to be a pediatrician since high school, Dr. Ruan enjoys watching children learn new skills and grow into young adults. He considers it an honor to help parents guide them through that process. When challenges arise, he takes seriously his role in helping families make informed decisions for their child.

His ties to Boulder County began in childhood. Born in China, Dr. Ruan moved to the United States at age five when his father pursued a Ph.D. in Civil Engineering at the University of Colorado Boulder. His family lived in Boulder and Fort Collins before settling in Longmont, where he attended middle and high school. He graduated from Niwot High School in 2006.

After residency training, Dr. Ruan and his family returned to Colorado in part to reconnect with the mountains and outdoor activities they enjoy, including camping, backpacking, hiking, skiing, and snowshoeing. At home, he and his wife enjoy cooking, gardening, and spending time with their two sons.

Specialty Areas

Dr. Allen Ruan addresses the full range of pediatrics, including:

  • Newborn and well-child preventive care
  • Acute sick visits
  • Chronic medical conditions such as asthma
  • Dermatologic conditions such as acne and warts

Education and Certifications

Appointments

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Locations

Patient Insights

“Dr. Ruan has been our pediatrician since our baby was born and we love him! He’s super friendly, very thorough, and a really great doctor! He always takes time for us to answer all of our new parent questions and we never feel rushed like with...”
Boulder County parent
“We absolutely love Dr. Ruan! He has been seeing our daughter since she was four days old. He is very attentive, treats her with so much care, and is very personable. As first time parents, it was really important for us to find a doctor who would...”
Boulder County parent
“Dr. Ruan was wonderful. He spoke directly to our 8-year-old son and asked him questions. He was warm and friendly, disarming and relatable to a kid. He made the appointment comfortable and fun. We were so impressed with his bedside manner and how...”
Boulder County parent
“Dr. Ruan is wonderful! Highly recommend. I am a physician assistant and an anxious mom and Dr. Ruan and his staff have been so great to work with. They are more than competent with care and are quickly responsive to concerned phone calls. He...”
Parent in Boulder County

Articles from Allen Ruan, MD, FAAP

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