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

Individual provider Mental Health Counselor · NPI 1902284458

Maryellen O'Brien, LMHC is a Mental Health Counselor in Worcester, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2015.

Licensed in
MA
In the registry since
2015
Specialties on file
2
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

630 Plantation St
Worcester, MA 01605-2038
Phone: (508) 853-2854
Fax: (508) 853-4354
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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 1196 (MA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 611 (MA)

Record details

NPI number1902284458
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorNo
NPI enumeratedMay 15, 2015
Last updated in NPPESMay 19, 2015

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