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

Mark Harris

Individual provider Intellectual & Developmental Disabilities Psychologist · NPI 1790532257

Mark Harris is an Intellectual & Developmental Disabilities Psychologist in Millsboro, Delaware. Practices as a sole proprietor. Registered with an NPI since 2024.

In the registry since
2024

Practice location Address checks out

35352 Wright Way
Millsboro, DE 19966-7497
Phone: (646) 342-2164
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Intellectual & Developmental Disabilities Psychologist (primary) Taxonomy 103TM1800X

Record details

NPI number1790532257
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMay 2, 2024
Last updated in NPPESMay 2, 2024
Certification dateMay 2, 2024
Mailing address35352 Wright Way, Millsboro, DE 19966-7497

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