Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mary Catherine Lewis, PSYD

Individual provider Cognitive & Behavioral Psychologist · NPI 1689386625

Dr. Mary Catherine Lewis, PSYD is a Cognitive & Behavioral Psychologist in Chevy Chase, Maryland. Licensed in Maryland. Registered with an NPI since 2022.

Licensed in
MD
In the registry since
2022
Specialties on file
4
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

5530 Wisconsin Ave Ste 1528
Chevy Chase, MD 20815-4300
Phone: (240) 780-8214
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X
Clinical Psychologist Taxonomy 103TC0700X · Licence 06958 (MD)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X

Record details

NPI number1689386625
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedDecember 21, 2022
Last updated in NPPESDecember 21, 2022
Certification dateDecember 21, 2022

Other providers in Chevy Chase