

Dr Michael Arbel opened Southwest Pediatrics in March of 2009 since then Southwest Pediatrics has grown tremendously. In September of 2017 Southwest Pediatrics joined with several other Pediatrics practices to form Arbor Medical Partners.
Contact Information
- 9150 W Indian School Road Suite 127
Phoenix, Arizona 85037 - (623) 931-3028
- (623) 931-3029
- Monday – Friday: 8:00 am – 5:00 pm
Saturday & Sunday: Closed
Our Team
Jennifer Valentine

Jennifer
Valentine
MSN, C.P.N.P.
Jennifer has been a practicing Pediatric Nurse Practitioner in the Valley for over 20 years and a pediatric nurse for over 30 years. She graduated from Arizona State University with her Masters in Nursing in 2002. She is nationally certified as a Pediatric Nurse Practitioner by the PNCB. She is fluent in Spanish.She is a current member of the National Association of Pediatric Nurse Practitioners both at the national and local levels.
Jennifer is married with three children. She is originally from St. Louis, Missourri and moved to Scottsdale at the age of 16 with her parents and siblings. She enjoys camping, reading, hiking, relaxing in Mexico on the beach, and spending time with friends and family.
Hajnalka Hanna Castle

Hajnalka
Hanna Castle
CPNP
Originally from Hungary and recently arrived in Arizona, Hanna Castle is a Certified Pediatric Nurse Practitioner. She began her experience in the pediatric field by working at a non-profit school-based clinic for five years as a pediatric registered nurse. She continued her education and graduated in 2023 from Maryville University with a Master of Science in Advanced Practice Nursing, specializing in pediatrics. She is a member of the National Association of Pediatric Nurse Practitioners and is nationally certified as a Pediatric Nurse Practitioner by the PNCB. Although Hanna was born and raised in Hungary, she has lived in the United States for over 24 years. She is passionate about working with children and building strong relationships with them and their parents. In her free time, Hanna enjoys crafting and spending time with her two children and two cats.