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

Dr. Mark Richardson, PSYD

Individual provider Clinical Psychologist · NPI 1538529821

Dr. Mark Richardson, PSYD is a Clinical Psychologist in Wilmington, Delaware. Licensed in Delaware and Pennsylvania. Registered with an NPI since 2016.

Licensed in
DE, PA
In the registry since
2016
Specialties on file
2
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

1301 E 12th St
Wilmington, DE 19802-5315
Phone: (302) 429-7780
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence B1-0000989 (DE)
Clinical Psychologist Taxonomy 103TC0700X · Licence PS017632 (PA)

Record details

NPI number1538529821
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorNo
NPI enumeratedFebruary 29, 2016
Last updated in NPPESFebruary 29, 2016
Mailing address1114 S Dupont Hwy, Suite 104, Dover, DE 19901-4401

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