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

Individual provider Behavior Analyst · NPI 1144563388

Elizabeth Estelle Williamson, MA, BCBA is a Behavior Analyst in Los Angeles, California. Practices as a sole proprietor and works from 2 locations. Registered with an NPI since 2013.

In the registry since
2013
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
BCBA — Board Certified Behavior Analyst
Designs and supervises applied behaviour analysis programmes, often for autism.

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Practice location Address checks out

2115 Beverly Blvd
Los Angeles, CA 90057
Phone: (323) 938-3434
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 400 E Royal Ln, Irving, TX 75039-3540 — (855) 832-6727

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X

Record details

NPI number1144563388
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA , BCBA
Sole proprietorYes
NPI enumeratedApril 5, 2013
Last updated in NPPESOctober 1, 2018

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