About Dr. Hasell

Dr. Hasell graduated from medical school in 1987 and met his wife, Dr. Pham, during his residency in Pediatrics. Before founding the Pediatric Specialists in Trinity, Florida in 1997, they worked overseas and in California. His practice has consisted of a growing component of visits for ADHD, anxiety and depression as well as other mental health issues such as Obsessive-Compulsive Disorder, sleep issues, and common childhood behavioral problems. His patient base has also been shifting to teens and young adults.


Dr. Hasell and Pham have raised three children together and try to implement mindfulness practices into their personal life and medical practice to promote more positive healing energy and overcome thought patterns that are limiting potential.

With personal experience and insight into the challenges of ADHD and depression and anxiety, Dr. Hasell feels it is his calling to utilize his training and experience to help patients with these conditions utilize their unique attributes and achieve their full potential.

In addition to his medical practice Dr. Hasell has served as Medical Director of the Child Protection Team of Pasco County for the last 23 years and is a charter member of the Rotary Club of Trinity. During his free time he enjoys boating, tennis and playing in a Reggae band.

Remote Pediatrics

Education & Training


  • BA, University of California, Santa Barbara cum laude


  • MD, Medical University of South Carolina


  • Pediatric Residency, University of California, Irvine

Experience & Professional Memberships

  • Fellow of the American Academy of Pediatrics 

  • Founder of The Pediatric Specialist Medical Group

  • Medical Director of Pasco Kids First 

  • Member of CHADD (Children and Adults with Attention-Deficit Disorder/Hyperactivity Disorder)

  • Member of ADAA (Anxiety and Depression Association of America)

  • Charter member of Rotary Club of Trinity