Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Elizabeth A O'Callahan, LMHC, BCBA, LABA

Individual provider Mental Health Counselor · NPI 1548531916

Elizabeth A O'Callahan, LMHC, BCBA, LABA is a Mental Health Counselor in Worcester, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2012.

Licensed in
MA
In the registry since
2012
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.
BCBA — Board Certified Behavior Analyst
Designs and supervises applied behaviour analysis programmes, often for autism.

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Practice location Address checks out

14 Victoria Ave
Worcester, MA 01607-1506
Phone: (508) 233-8586
Fax: (774) 366-0757
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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 LMHC13213 (MA)
Behavior Analyst Taxonomy 103K00000X · Licence LABA1305 (MA)

Record details

NPI number1548531916
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC , BCBA , LABA
Sole proprietorNo
NPI enumeratedJanuary 18, 2012
Last updated in NPPESJune 25, 2026
Certification dateJune 25, 2026

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