Meet Our New Providers - September 2025

Nickie Diggs, LCSW-C

Staff Therapist, Columbia Center

Elizabeth Harlan, MD

Staff Physician, Security Square Center

“I am excited to join the Chase Brexton team to continue its mission of addressing health inequities and providing care to a diverse population. While I completed my Family Medicine residency in Baltimore I was charmed by the city and the people I met and knew that I wanted to stay in the area. I look forward to providing primary care to patients of all ages at the Security Square office.”

Kene Mbonu, MD

Staff Pediatrician, Security Square Center

Vanessa Perez Valencia, Ph.D, LGPC

Staff Therapist, Glen Burnie Center

"What brings me to Chase Brexton is how they appreciate diversity and the respect and recognition that they have for every person no matter their sex, sexual orientation, ethnicity or racial distinction. I come from Mexico City which allows me to understand Latin culture and its needs, and I am also bilingual, so I can be a better promotor of good with my Latin patients. Also I am proficient in English and I also understand and lived in American culture, which allows me to understand the methodology of work and culture to help my patients."