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

Individual provider Psychologist · NPI 1164791281

Jessica C Terwilliger, PSYD is a Psychologist in Amsterdam, New York. Licensed in New York. Registered with an NPI since 2011.

Licensed in
NY
In the registry since
2011
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

427 Guy Park Ave
Amsterdam, NY 12010-1054
Phone: (518) 841-7341
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence P82714 (NY)

Record details

NPI number1164791281
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedDecember 19, 2011
Last updated in NPPESDecember 19, 2011