Dr. Robert Kosiorek
Dr. Robert Kosiorek has been with Canyon Pediatrics for over 30 years providing quality services to multiple generations of East Valley families. As a long time provider with Canyon Pediatrics, Dr. Kosiorek is always accepting new patients, from new-borns to adolescents.
Dr. Tim Nguyen
Dr. Tim Nguyen has been a pediatrician with Canyon Pediatrics for over 3 years now and we're happy to have him! He's an active staff member who speaks both Vietnamese and Spanish.
Dr. Howard Garner
Dr. Howard Garner is a pediatrician with over 20 years of experience in the East Valley. He has been married for over 20 year and has three beautiful children ages 10, 8, and 6. Dr. Garner completed his medical degree at the University of Virginia and completed post-doc training in both pediatrics and family practice.
Ruth Cover FNP
Ruth Cover is a board certified Family Nurse Practitioner. She started pursuing her nursing interests in 2012 when she graduated from Gateway Community College with her Associates degree in Nursing. While working she wanted to further her education and obtained her Bachelors of Science in Nursing from ASU in 2014. Ruth has extensive experience in labor and delivery, post partum, post-op care, and as a cosmetic injector. After 8 years of experience Ruth graduated from Grand Canyon University with Masters of Science in Nursing. Outside of the office Ruth is a mother to 4 boys, and runs her own business.
Natalie Monk CPNP
Natalie Monk has been a certified pediatric nurse practitioner since 2011. She grew up in the Phoenix area, completing her education at Arizona State University. She speaks Spanish and Portuguese and loves working with children and their families to help them become and stay healthy!.
Rebecca Alvarez, M.S., PA-C
Rebecca Alvarez has been with Canyon Pediatrics at our Mesa location for a little over 5 years now! She's passionate about Children's health and enjoys watching all of her patients grow and flourish. Rebecca is fluent in Spanish and works closely with our in-house behavioral health consultants.
Dr. Catherine Tretiakova (Dr. Cat)
Catherine Tretiakova is a nationally certified Pediatric Nurse Practitioner and received her Doctorate of Nursing Practice from Arizona State University. Dr. Cat is committed to promoting family resilience, injury prevention, health and wellness, and supportive care for illness. She lives in the valley with her husband and daughters. Together they enjoy swimming, cooking, reading, and hiking.
Richard Brubaker, CEO, LMSW, BHP
Richard Brubaker is CEO or Canyon Pediatrics and is also a social worker, doctoral candidate, and Behavioral Health Consultant (BHC). Richard is a social worker with a history of working with children and families who have experienced trauma in their lives. He has a background in a number of local children's agencies in the valley including Arizona's Children Association, Child Help, Valle del Sol, and Touchstone Behavioral Health.
Most recently Richard has become and advocate of trauma-informed care which lead to a doctorate that connects our physical and mental health to address the whole person. Richard is a proponent of mindfulness and utilizes EMDR, Trauma-focused CBT, Humanistic sandtray therapy in clinical practice.
Ashley Brubaker - LMSW, PMH-C, BHP
with us as a Behavioral Health Consultant (BHC), Newborn Support Director, and Special Projects Director.
Carly Wells - Registered Dietician
Carly Wells is the WIC Director and Registered Dietitian for the Canyon WIC program. She has worked for WIC for about 8 years total and also has worked as an outpatient Clinical Dietitian. She has a passion working with families of young children to reach their health and nutrition goals. She is a Certified Lactation Specialist and counsels women in breastfeeding. She can relate to the busy mom life and has 3 young kids of her own. Before kids, she was an avid runner and coached high school track and provided sports nutrition counseling for young athletes.