I am a licensed psychologist and a Clinical Assistant Professor of Psychology at the University of Pennsylvania, Department of Psychiatry. My practice is located on the Main Line in Haverford, Pennsylvania. I specialize in cognitive-behavioral treatment for anxiety and depression and related conditions, including:

  • obsessive-compulsive disorder (OCD)
  • trauma related difficulties like posttraumatic stress disorder (PTSD)
  • panic disorder
  • social phobia
  • specific phobia (animals, needles, dental procedures, etc.)
  • generalized anxiety
  • sleep problems (trouble falling asleep or staying asleep, insomnia)
  • major depression
  • smoking cessation

If you are interested in treatment options, please contact me. Self referrals are welcome as are referrals from other professionals.


Overcoming OCD: A Journey to Recovery¬†will be published in January 2015. Written by Janet Singer with Dr. Gillihan, it’s an inspiring story of recovery from severe obsessive-compulsive disorder as well as a resource for OCD sufferers and their families.