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

Mr. William Gresser, MA

Individual provider Mental Health Counselor · NPI 1558341529

Mr. William Gresser, MA is a Mental Health Counselor in Acton, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

162 Great Rd
Acton, MA 01720-5760
Phone: (781) 641-4104
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 141 (MA)
Mental Health Counselor Taxonomy 101YM0800X · Licence 255 (MA)

Record details

NPI number1558341529
Entity typeIndividual (Type 1)
GenderMale
Credentials MA
Sole proprietorNo
NPI enumeratedJanuary 18, 2006
Last updated in NPPESJuly 13, 2026
Mailing address6 Revere St, Arlington, MA 02476-6129

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