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

Nancy Arellano Ayllon

Individual provider Assistant Behavior Analyst · NPI 1588332514

Nancy Arellano Ayllon is an Assistant Behavior Analyst in Wilmington, Delaware. Works from 2 locations. Licensed in Delaware.

Licensed in
DE
In the registry since
2021
Specialties on file
2

Practice location Address checks out

4023 Kennett Pike # 988
Wilmington, DE 19807-2018
Phone: (484) 577-9928
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9030 Red Branch Rd Ste 100, Columbia, MD 21045-2003 — (877) 504-4141

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X · Licence 1-26-87429 (DE)
Assistant Behavior Analyst Taxonomy 106E00000X · Licence 0-25-16289 (DE)

Record details

NPI number1588332514
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedSeptember 3, 2021
Last updated in NPPESFebruary 4, 2026
Certification dateFebruary 4, 2026

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