Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Liane G. Thornhill, MS, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1942840301

Liane G. Thornhill, MS, CCC-SLP is a Speech-Language Pathologist in Riverdale, Maryland. Registered with an NPI since 2020.

In the registry since
2020
What do these letters mean?
MS — Master of Science
A graduate science degree.
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

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Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 687
Riverdale, MD 20738-0687
Phone: (202) 743-5391
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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

Record details

NPI number1942840301
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , CCC-SLP
Sole proprietorNo
NPI enumeratedJanuary 13, 2020
Last updated in NPPESMay 6, 2024
Certification dateMay 2, 2024

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