about our practice

Humility, excellence, compassion, and community are all core values that drive this physician. Dr. Nhat Pham is a compassionate and “Phamily”-oriented Pediatric Critical Care Physician based in Sacramento, CA. Dr. Pham returned to Northern California after a decade of training, driven by a heartfelt commitment to serve the community where he grew up.

Dr. Kathy Yimer is a dedicated pediatrician who completed medical school training from St. George’s University in Grenada. Her journey continued with a pediatric residency at the Children’s hospital of New Jersey, followed by one year of pediatric critical care fellowship training at the University of California, Los Angeles. She currently balances her time between outpatient and inpatient pediatric medicine, providing compassionate care to children in the Greater Sacramento area. Outside of medicine, she finds joy in her role as a spouse and parent to three wonderful children as well as playing squash and kickboxing.

Dr. Muluneh Yimer is a dedicated pediatric cardiologist who completed medical school training at Addis Ababa University in Ethiopia. After a pediatric residency at Newark Beth Israel, followed by a three-year pediatric cardiology fellowship at Children’s Mercy Hospital in Kansas City, he boasts decades of experience in caring for children. Currently serving as a local pediatric cardiologist, Dr. Yimer is a loving spouse and parent to three beautiful children. Beyond medicine, he finds joy in playing ping pong and squash.

As an immigrant, Dr. John Duong-Tran grew up immersed in two beautifully diverse cultures. After graduating from high school at the age of fifteen, he obtained his Bachelor of Science in Biology and his graduate degree in Microbiology. He attended medical school at Oregon Health Sciences University and completed his residency in Pediatrics at Doernbecher Children’s Hospital. He practiced as a general pediatrician and a pediatric hospitalist for nearly six years in the Pacific Northwest prior to embarking on further fellowship training in Pediatric Critical Care at Rady Children’s Hospital in San Diego, CA. Dr. Duong-Tran has accumulated extensive expertise from practicing in the field of pediatrics for more than thirty one years.

As Director of Patient Experience and Community Relations, Caroline Duong-Tran leads marketing and public relations at Rainbow Kids Urgent Care (RKUC), overseeing RKUC’s community engagement and sponsorships, social media presence, and special events and celebrations. During RKUC’s inception, Caroline played a pivotal role in designing  a welcoming, family-centered environment for children and continues to ensure that the facility remains bright, engaging, and focused on their needs.

As the Office Manager, Ryan Pressler ensures the seamless day-to-day operations of the practice, prioritizing the needs of both patients and staff. Guided by his personal motto, "Treat every patient like family—serve with integrity, care with empathy," Ryan exemplifies compassionate healthcare leadership and patient advocacy. Ryan brings a wealth of knowledge and dedication to the medical field. Fondly described as a "Medical Hobbyist" by his friends, he possesses a diverse range of skills and expertise, honed through a career spanning emergency medical services, flight rescue, tissue recovery, and orthopedic care—offering both surgical and non-surgical solutions.