Dr. KathryN Ziemer, PhD

Clinical Psychologist

Kathryn Ziemer is a licensed clinical psychologist with over 10 years of experience.

She received her PhD from the University of Maryland and has spent hundreds of hours providing therapy to clients at Old Town Psychology, the DC Veterans Affairs Medical Center, and the University of Maryland Counseling Center. She has also conducted research at the National Institutes of Mental Health and the Social and Decision Analytics Lab at Virginia Tech.

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Dr. Greta Carlson, Psy.D

Doctoral Level Clinician

Greta Carlson received her doctorate in clinical psychology at the George Washington University.

She has 7 years of experience providing psychological testing and psychotherapy in school, outpatient, and inpatient settings to children, adolescents, and their families. Dr. Carlson has also conducted research on attachment style and IQ performance with participants aged 1-3 years.


Stephanie Yee, MA

Master’s Level Clinician

Stephanie Yee is a Masters Level Clinician pursuing her doctorate at the University of Maryland in counseling psychology. She has over three years of experience in counseling and child IQ testing gained through work at the Maryland Psychotherapy Clinic and Research Lab as well as Old Town Psychology.