Before starting her private practice, Dr. Marzullo-Dove worked in a group practice, university counseling center, inpatient treatment centers, and outpatient treatment settings with children (ages 2 to 12), adolescents (ages 14 to 19), adults, and elders.
She also provided therapeutic services to children and adolescents with behavioral and psychological issues in a charter school in Washington, DC. She provided therapy to emerging/young adults and adults in undergraduate and graduate programs at Howard University in Washington, DC.
With adults, she worked with all adult age groups at a residential setting treating gambling and other addictions and worked with diverse populations, including the LGBT communities, couples, individuals, families (International, blended, etc), and children in a group practice. In all of these settings, where indicated for the benefit of her clients, she has incorporated therapeutic services to address immigration and acculturation issues.