About Casey Culligan, Psy.D

Dr. Casey A. Culligan (she/her/hers) earned her B.A. in psychology from Smith College and her M.S. and Psy.D. in clinical psychology from Antioch University New England (APA accredited). During her graduate training, Dr. Culligan created and completed an Individualized Concentration in Multiculturalism and Social Justice within Clinical Practice. She has completed training at numerous psychiatric facilities across the Northeast, including an APA accredited predoctoral internship at Stony Brook University’s Counseling and Psychological Services in New York. Following her doctoral studies, Dr. Culligan was excited to join LifeStance Health as a postdoctoral fellow, preceding licensure.

Dr. Culligan is trained as a generalist provider—assessing and treating myriad presenting concerns, and working with clients with diverse backgrounds and intersecting identities. Her clinical expertise encompasses a wide range of concerns including but not limited to generalized anxiety, social anxiety, post-traumatic stress, depression, identity related concerns, family and other relationship distress, difficulties with social skills, body image, and challenging adjustments/life transitions.

Though Dr. Culligan identifies as a generalist, she has special interests and specialized training in working with emerging adults (18-25), as well as marginalized communities (as it relates to gender, sexuality, race, ethnicity, religion/spirituality, socioeconomic status, etc.). Dr. Culligan also holds special interests in attachment, identity, trauma, and the human-animal bond.

Dr. Culligan views therapy as a truly collaborative process, in which treatment is inherently relational, compassionate, and strengths-based. She works primarily from an integrative, multiculturally informed, relational psychodynamic approach that regularly incorporates elements of cognitive behavior therapy, dialectical behavior therapy, mindfulness practices, and motivational interviewing, as needed to best meet each individual client’s presentation and needs. Dr. Culligan works hard to foster a space in which her clients feel valued and heard—providing support to identify and meet their individual goals.


  • Anxiety
  • Depression
  • Dysfunctional Family
  • Gender Identity
  • PTSD
  • Self-Esteem
  • Social Skills
  • Stress Management
  • Transgender/LGBTQ
  • Locations

    Nashua Auburn

    8 Auburn Street
    Nashua, NH 03064


    • Cigna
    • Tufts
    • United Behavioral Health/Optum
    • US Family