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

Dr. Mark David Libon, PHD

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1023036878

Dr. Mark David Libon, PHD is an Addiction (Substance Use Disorder) Counselor in Salem, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
Specialties on file
3
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

70 Washington St Ste 316
Salem, MA 01970-3520
Phone: (781) 910-3440
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 3044 (MA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 902 (MA)
Marriage & Family Therapist Taxonomy 106H00000X · Licence 832 (MA)

Record details

NPI number1023036878
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 18, 2006
Last updated in NPPESDecember 27, 2016
Mailing address7 Cedar St, Marblehead, MA 01945-1921

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