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

Mark Andrew Preston

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1124845789

Mark Andrew Preston is an Addiction (Substance Use Disorder) Counselor in Seattle, Washington. Practices as a sole proprietor. Registered with an NPI since 2024.

In the registry since
2024

Practice location Address checks out

2313 3rd Ave
Seattle, WA 98121-1711
Phone: (206) 256-9865
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1124845789
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedSeptember 25, 2024
Last updated in NPPESSeptember 25, 2024
Certification dateSeptember 24, 2024

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