Dr. O’Callaghan is a licensed psychologist with thirty years of experience working with individuals and families in Maryland.  She came to Maryland in 1981 to complete an internship in Medical Psychology at Johns Hopkins School of Medicine.  Dr. O’Callaghan attended college at Duke University, where she graduated Magna Cum Laude with Distinction in Psychology.  She attended graduate school at Baylor University in Texas, where she studied clinical psychology and biopsychology.

Dr. O’Callaghan has served in several positions to advance the mission of delivering psychological services in Maryland.  She served as the president of Maryland Psychological Association in 1991.  She received a gubernatorial appointment to the Maryland Mental Health Commission in 1998.  She received gubernatorial appointment to the Maryland Board of Examiners of Psychologists serving from 2000 to 2006.  Dr. O’Callaghan has been an ardent advocate for consumers of psychological services in Maryland throughout her career.

In 2006, Dr. O’Callaghan’s career contribution was recognized with the Alfred Wellner Senior Lifetime Achievement Award from the National Register of Health Service Providers in Psychology.  This national award recognized her service on behalf of consumers of mental health services.

Dr. O’Callaghan has worked with individuals and families to solve life problems arising from anxiety and depression, from relationships, from divorces, and from major changes in health and finances in families.  Dr. O’Callaghan has worked extensively with victims of trauma, ranging from victims of sexual abuse and sexual assault to individuals exposed to trauma through their workplace or occupation (police officers).  Dr. O’Callaghan has directed mental health services in hospital outpatient and inpatient programs and has managed clinical services delivered through a group private practice.

Dr. O’Callaghan has been an active community contributor, serving on neighborhood and professional boards.  Her current volunteer work in the area of language and literacy focuses on supporting language skills for non-English speaking immigrants and advancing reading skills for individuals with learning and vision impairments.