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Aldecia Matthews, B.S, M. S.

Regional Director of Operations Aldecia Matthews is a seasoned healthcare professional with over 10 years of dedicated experience in the sector. She holds two Bachelor…

Elaine Williams, MA, LCPC

Clinic Director Elaine Williams, MA, LCPC serves as the Clinic Director of Columbia Associates’ Columbia office. Elaine is originally from Liberia and grew up in…

Pegah Barker, PA-C, CAQ-Psych

Senior Medical Resource Director Pegah Barker is an NCCPA board-certified Physician Assistant at the North Bethesda clinic. She earned her Bachelor of Science in Psychology…

Sandra N. Crespo, LICSW

LICSW | Clinic Director Sandra Crespo is the Clinic Director at our North Bethesda clinic! Sandra N. Crespo is a licensed clinical social worker, professor,…

Alexis Evans, LPC

Licensed Professional Counselor | Clinic Director I am the Clinic Director at our Fairfax clinic who provides therapy services in-person and via telehealth. You may…

David D. Riley, LCSW

Licensed Clinical Social Worker | Clinic Director David Riley, LCSW serves as the Clinical Director for Columbia Associates’ Arlington office. David is a compassionate and…

Laura Lambert, LCSW-C

Licensed Clinical Social Worker – Certified | Clinic Director I am a provider at our Bowie clinic who provides therapy services in-person and via telehealth.…