Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Fundamental Behavior Services, LLC

Organization Behavior Analyst · NPI 1437431624

Fundamental Behavior Services, LLC provides Behavior Analyst services in Gaithersburg, Maryland. Licensed in Connecticut. Registered with an NPI since 2011.

Licensed in
CT
In the registry since
2011
Specialties on file
5
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

554 N Frederick Ave # 345
Gaithersburg, MD 20877-2504 Not confirmed with CMS for 14 years — call before visiting
Phone: (240) 361-7178
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

In Home Supportive Care Agency (primary) Taxonomy 253Z00000X
Behavior Analyst Taxonomy 103K00000X · Licence 1-11-8537 (CT)
Developmentally Disabled Services Day Training Agency Taxonomy 251C00000X
Community/Behavioral Health Agency Taxonomy 251S00000X
Early Intervention Provider Agency Taxonomy 252Y00000X

Record details

NPI number1437431624
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Colleen Williams — Executive Director · (240) 361-7178
NPI enumeratedSeptember 13, 2011
Last updated in NPPESFebruary 28, 2012
Mailing address554 N Frederick Ave # 345, Gaithersburg, MD 20877-2504

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