Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Allison Leff, MA, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1477811644

Allison Leff, MA, CCC-SLP is a Speech-Language Pathologist in Newtown, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2012
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

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Practice location Address checks out

5 Old Barn Ct
Newtown, PA 18940-2714
Phone: (215) 321-0669
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence SL008476 (PA)

Record details

NPI number1477811644
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA , CCC-SLP
Sole proprietorYes
NPI enumeratedApril 25, 2012
Last updated in NPPESApril 25, 2012
Mailing address5 Old Barn Ct, Newtown, PA 18940-2714

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