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

Mark Alan Koenig, MA

Individual provider Mental Health Counselor · NPI 1215073101

Mark Alan Koenig, MA is a Mental Health Counselor in Arlington, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2007.

Licensed in
MA
In the registry since
2007
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

742 Massachusetts Ave
Arlington, MA 02474
Phone: (781) 646-7301
Fax: (781) 643-8726
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X (MA)

Record details

NPI number1215073101
Entity typeIndividual (Type 1)
GenderMale
Credentials MA
Sole proprietorNo
NPI enumeratedJanuary 29, 2007
Last updated in NPPESJuly 8, 2007
Mailing address742 Massachusetts Avenue, Arlington, MA 02474

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