Mariela Costello,

PsyD

Clinical Psychologist

Dr. Costello is a highly experienced clinical psychologist with extensive expertise in working with children, adolescents, and adults across across a range of clinical settings. Over the course of her career, Dr. Costello has provided compassionate, evidence-based care in hospital environments, multidisciplinary clinics, and private practice. A recognized advocate for culturally sensitive practice, Dr. Costello brings a strong commitment to cultural diversity and inclusion in clinical work. This focus ensures that clients from all backgrounds feel respected, understood, and supported in their therapeutic journey. Known for a thoughtful, collaborative, and client-centered approach, Dr. Costello integrates a variety of therapeutic modalities to support long-term emotional wellbeing and personal growth.

Education

  • PsyD, Doctor of Psychology, California School of Professional Psychology
  • MA, Masters Degree in Clinical Psychology, California School of Professional Psychology

Experience 

  • Dr. Costello specializes in the assessment and treatment of anxiety disorders, mood disorders, autism spectrum disorders, stress management among other clinical areas. With a deep understanding of developmental and emotional challenges across the lifespan, Dr. Costello tailors therapeutic approaches to meet the unique needs of each individual

Languages

  • Spanish

Licenses & Certifications

  • Clinical Psychologist PSY 23277

Areas of Specialty

  • Anxiety Disorders
  • Mood Disorders
  • Autism Spectrum Disorders among other clinical areas

Modalities Practiced 

  • Cognitive Behavioral Therapy
  • Family Systems Therapy
  • Acceptance and Commitment Therapy