Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

John R. Klindienst Ph D. Clinical Psychologist PC

Organization Clinical Psychologist · NPI 1821242876

John R. Klindienst Ph D. Clinical Psychologist PC provides Clinical Psychologist services in Riverhead, New York. Licensed in New York. Registered with an NPI since 2008.

Licensed in
NY
In the registry since
2008
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

223 Roanoke Ave
Riverhead, NY 11901 Not confirmed with CMS for 17 years — call before visiting
Phone: (631) 727-1563
Fax: (361) 369-9423
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 007012 (NY)

Record details

NPI number1821242876
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Klindienst — President · (631) 727-1563
NPI enumeratedNovember 4, 2008
Last updated in NPPESNovember 4, 2008
Mailing address223 Roanoke Ave, Riverhead, NY 11901-2778

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