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

Individual provider Psychologist · NPI 1366551392

Dr. Sidney S Horowitz, PHD is a Psychologist in Waterbury, Connecticut. Licensed in Connecticut. Registered with an NPI since 2006.

Licensed in
CT
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

133 Scovill St Ste 211
Waterbury, CT 06706-1127 Not confirmed with CMS for 16 years — call before visiting
Phone: (203) 573-9521
Fax: (203) 573-8708
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 001070 (CT)

Record details

NPI number1366551392
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESSeptember 2, 2010

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