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

Individual provider Mental Health Counselor · NPI 1114172475

Dr. John Castronova, PSYD, LMHC is a Mental Health Counselor in Oyster Bay, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2008
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

97 Singworth St
Oyster Bay, NY 11771-3705
Phone: (516) 802-5676
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 000052-1 (NY)

Record details

NPI number1114172475
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD , LMHC
Sole proprietorYes
NPI enumeratedNovember 28, 2008
Last updated in NPPESNovember 28, 2008

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